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Oldal 1/147
Analogue Redbox
User Handbook
RB-MA1 Single microphone amplifier
RB-MA2 Dual microphone amplifier
RB-SM1 Single stereo to mono converter
RB-SM2 Dual stereo to mono converter
RB-UL1 Single unbalanced to balanced converter
RB-UL2 Dual unbalanced to balanced converter
RB-UL4 Quad unbalanced to balanced converter
RB-LU4 Quad balanced to balanced converter
RB-BL2 Single stereo bi-directional matching converter
RB-BL4 Dual stereo bi-directional matching converter
RB-SL2 Twin mono, or stereo, limiter
RB-DA6 6 way stereo distribution amplifier
RB-HD1 Stereo headphone amplifier
RB-HD6 6 way stereo headphone distribution amplifier
RB-SD1 Silence detection unit
RB-PMX4 10 input, 4 output preset mixer
RB-LI2 Stereo line isolation unit
RB-PLI6 6 way mono passive line isolation unit
RB-SS10 10 way stereo source selector/mixer
RB-LC3 3 way light/power controller
Revision 1.92 June, 2004
©
©
©
©©Sonifex Ltd, 2000-4.
All Rights Reserved
Sonifex Ltd, 61, Station Road, Irthlingborough,
Northants, NN9 5QE, England.
Tel : +44 (0)1933 650 700
Fax : +44 (0)1933 650 726
Email : sales@sonifex.co.uk or technical.support@sonifex.co.uk
Web : http://www.sonifex.co.uk
Information in this document is subject to change without notice and does not
represent a commitment on the part of Sonifex Ltd. Sonifex Ltd shall not be liable for
any loss or damage whatsoever arising form the use of information or any error
contained in this manual.
No part of this manual may be reproduced or transmitted in any form or by any
means, electronic or mechanical, including photocopying, recording, or information
storage and retrieval systems, for any purpose other than the purchaser's personal
use, without the express written permission of Sonifex Ltd.
Unless otherwise noted, all names of companies, products and persons contained
herein are part of a completely fictitious adaptation and are designed solely to
document the use of Sonifex products.
Contents
Redbox User Handbook
Contents
Warranty, Safety & Installation Information....................... i
Warranty Information ..........................................................i
Returning the Warranty Card ............................................... ii
Safety of Mains Operated Redbox Equipment ........................ iii
Preparing the Machine for Use .......................................... iii
Equipment Safety ........................................................... iii
Voltage Setting Checks.................................................... iii
Fuse Rating ................................................................... iii
Power Cable and Connection ............................................ iii
Ordering the Correct Mains Lead....................................... iv
Installation Information...................................................... iv
Atmosphere................................................................... iv
Electromagnetic Radiation................................................ iv
Fitting Redboxes..............................................................v
1. RB-MA1 Single & RB-MA2 Dual Microphone Amplifiers 1-1
1.1. Introduction.............................................................1-1
1.2. System Block Diagram...............................................1-2
1.3. Rear Panel Connections and Operation .........................1-2
1.3.1. Mic Inputs ..........................................................1-3
1.3.2. Input Gain..........................................................1-3
1.3.3. Using Phantom Powered Microphones.....................1-3
1.3.4. Using the LF Filter ...............................................1-3
1.3.5. Output...............................................................1-3
1.4. Technical Specifications .............................................1-4
1.4.1. Audio Specifications .............................................1-4
1.4.2. Connections........................................................1-4
1.4.3. Equipment Type ..................................................1-4
1.4.4. Physical Specifications..........................................1-4
2. RB-SM1 Single & RB-SM2 Dual Stereo To Mono Converter
…….............................................................................. 2-1
2.1. Introduction.............................................................2-1
2.2. System Block Diagram...............................................2-2
2.3. Rear Panel Connections and Operation .........................2-2
2.3.1. Stereo Inputs 1 (& 2)...........................................2-3
2.3.2. Mono Output 1 (& 2)............................................2-3
2.3.3. Output Gain........................................................2-3
2.4. Technical Specifications .............................................2-4
2.4.1. Audio Specifications .............................................2-4
Contents
Redbox User Handbook
2.4.2. Connections ....................................................... 2-4
2.4.3. Equipment Type..................................................2-4
2.4.4. Physical Specifications .........................................2-4
3. RB-UL1 Single, RB-UL2 Dual & RB-UL4 Quad Stereo
Unbalanced To Balanced Converters ........................... 3-1
3.1 Introduction..............................................................3-1
3.2 System Block Diagram ...............................................3-2
3.3 Rear Panel Connections and Operation.......................... 3-2
3.3.1. RCA Phono Inputs (Left and Right) ........................3-3
3.3.2. Outputs (Left and Right) ...................................... 3-3
3.3.3. Output Level Adjustment......................................3-3
3.4 Technical Specifications .............................................. 3-4
3.4.1. Audio Specifications.............................................3-4
3.4.2. Connections ....................................................... 3-4
3.4.3. Equipment Type..................................................3-4
3.4.4. Physical Specifications .........................................3-4
4. RB-LU4 Quad Stereo Balanced To Unbalanced Converter
…….............................................................................. 4-1
4.1. Introduction.............................................................4-1
4.2. System Block Diagram ..............................................4-2
4.3. Rear Panel Connections and Operation.........................4-3
4.3.1. Inputs 1-4 (Left and Right) ..............................4-3
4.3.2. RCA Phono Outputs 1-4 (Left and Right) ............ 4-3
4.3.3. Output Level Adjustment .................................4-3
4.4. Technical Specifications ............................................. 4-4
4.4.1. Audio Specifications ........................................4-4
4.4.2. Connections................................................... 4-4
4.4.3. Equipment Type ............................................. 4-4
4.4.4. Physical Specifications .....................................4-4
5. RB-BL2 Single & RB-BL4 Dual Bi-Directional Matching
Converter .................................................................... 5-1
5.1. Introduction.............................................................5-1
5.2. System Block Diagram ..............................................5-2
5.3. Rear Panel Connections and Operation .......................... 5-3
5.3.1. Balanced to Unbalanced Connections ..................... 5-4
5.3.2. Unbalanced to Balanced Connections ..................... 5-4
5.4. Technical Specifications ............................................. 5-5
5.4.1. Audio Specifications.............................................5-5
5.4.2. Connections ....................................................... 5-5
Contents
Redbox User Handbook
5.4.3. Equipment Type ..................................................5-5
5.4.4. Physical Specification ...........................................5-5
6. RB-SL2 Twin Mono, or Stereo, Limiter ......................... 6-1
6.1. Introduction .............................................................6-1
6.2. System Block Diagram...............................................6-2
6.3. Rear Panel Connections and Operation.........................6-3
6.3.1. Outputs .............................................................6-3
6.3.2. Inputs ...............................................................6-3
6.3.3. Gain ..................................................................6-3
6.3.4. Mode .................................................................6-3
6.4. Technical Specifications .............................................6-4
6.4.1. Audio Specifications.............................................6-4
6.4.2. Connections........................................................6-4
6.4.3. Equipment Type ..................................................6-4
6.4.4. Physical Specifications..........................................6-4
7. RB-DA6 6 Way Stereo Distribution Amplifier............... 7-1
7.1. Introduction .............................................................7-1
7.2. System Block Diagram...............................................7-2
7.3. Rear Panel Connections and Operation.........................7-3
7.3.1. Inputs (Left and Right).........................................7-3
7.3.2. Stereo Outputs 1-6 (Mono Outputs 1-12)................7-3
7.4. Front Panel Connections and Controls ...........................7-3
7.4.1. Input Gain Control...............................................7-3
7.4.2. Stereo/Mono Operation ........................................7-4
7.5. Technical Specifications .............................................7-4
7.5.1. Audio Specifications.............................................7-4
7.5.2. Connections........................................................7-4
7.5.3. Equipment Type ..................................................7-4
7.5.4. Physical Specifications..........................................7-4
8. RB-HD1 Stereo Headphone Amplifier ..........................8-1
8.1. Introduction .............................................................8-1
8.2. System Block Diagram...............................................8-2
8.3. Front Panel Connections and Controls ..........................8-2
8.3.1. Stereo Outputs 1-2 (Mono Outputs1-2) ..................8-2
8.3.2. Volume Level Control...........................................8-2
8.4. Rear Panel Connections and Operation.........................8-3
8.4.1. Stereo Input (Left and Right) ................................8-3
8.4.2. Mono Mix Input...................................................8-3
8.4.3. Stereo/Mono Operation ........................................8-3
Contents
Redbox User Handbook
8.4.4. Local/Remote Control Operation ............................8-3
8.4.5. Remote Connector............................................... 8-4
8.5. Technical Specifications ............................................. 8-4
8.5.1. Audio Specifications............................................. 8-4
8.5.2. Connections ....................................................... 8-4
8.5.3. Equipment Type..................................................8-4
8.5.4. Physical Specifications .........................................8-4
9. RB-HD6 6 Way Stereo Headphone Distribution Amplifier
…….............................................................................. 9-1
9.1. Introduction.............................................................9-1
9.2. System Block Diagram ..............................................9-2
9.3. Rear Panel Connections and Operation.........................9-3
9.3.1. Stereo Input (Left and Right)................................9-3
9.3.2. Stereo/Mono Operation ........................................9-3
9.3.3. Channel Insertion Inputs or Parallel Outputs ...........9-3
9.4. Front Panel Connections and Controls .......................... 9-5
9.4.1. Stereo Outputs 1-6 (Mono Outputs 1-6) .................9-5
9.4.2. Master Level Control............................................ 9-5
9.4.3. Channel Volume Controls ..................................... 9-5
9.5. Technical Specifications ............................................. 9-6
9.5.1. Audio Specifications............................................. 9-6
9.5.2. Connections ....................................................... 9-6
9.5.3. Equipment Type..................................................9-6
9.5.4. Physical Specifications .........................................9-6
10. RB-SD1 Silence Detection Unit ................................ 10-1
10.1. Introduction ......................................................... 10-1
10.2. System Block Diagram........................................... 10-2
10.3. Rear Panel Connections and Operation....................... 10-3
10.3.1. A/B Inputs (Left and Right).............................. 10-3
10.3.2. Outputs ......................................................... 10-3
10.3.3. Level Control .................................................. 10-3
10.3.4. Time Control................................................... 10-3
10.3.5. Mode Dip Switch Settings ................................. 10-4
10.3.6. Remotes Connector ......................................... 10-5
10.4. Front Panel Selectors and Indicators.......................... 10-6
10.4.1. Source Select and Indicator .............................. 10-6
10.4.2. Mode Selector and Indicator.............................. 10-6
10.4.3. Main and Aux indicators ................................... 10-7
10.4.4. Alarm Indicator ............................................... 10-7
Contents
Redbox User Handbook
10.4.5. Restore Button ................................................ 10-7
10.4.6. Additional Modes ............................................. 10-7
10.5. Technical Specifications ......................................... 10-9
10.5.1. Audio Specifications ......................................... 10-9
10.5.2. Connections and Rear Panel Controls.................. 10-9
10.5.3. Front Panel Controls and Indicators .................... 10-9
10.5.4. Equipment Type .............................................. 10-9
10.5.5. Physical Specifications...................................... 10-9
11. RB-PMX4 10 Input, 4 Output Analogue Preset Mixer11-1
11.1. Introduction ......................................................... 11-1
11.2. System Block Diagram........................................... 11-2
11.3. Rear Panel Connections and Operation ..................... 11-3
11.3.1. Inputs 1-10 .................................................... 11-3
11.3.2. Outputs 1-4 .................................................... 11-3
11.4. Front Panel Controls .............................................. 11-3
11.4.1. Switch Banks .................................................. 11-3
11.4.2. Input Gain Controls.......................................... 11-4
11.5. Technical Specifications ......................................... 11-4
11.5.1. Audio Specifications ......................................... 11-4
11.5.2. Connections.................................................... 11-4
11.5.3. Equipment Type .............................................. 11-4
11.5.4. Physical Specifications...................................... 11-4
12. RB-LI2 Stereo Line Isolation Unit............................ 12-1
12.1. Introduction ......................................................... 12-1
12.2. System Block Diagram........................................... 12-1
12.3. Rear Panel Connections and Operation ..................... 12-2
12.3.1. Inputs............................................................ 12-2
12.3.2. Isolated Outputs.............................................. 12-2
12.3.3. Loop Outputs .................................................. 12-2
12.3.4. Output Level Adjustment .................................. 12-3
12.3.5. Internal Jumpers ............................................. 12-3
12.4. Technical Specifications ......................................... 12-4
12.4.1. Audio Specification .......................................... 12-4
12.4.2. Connections.................................................... 12-4
12.4.3. Equipment Type .............................................. 12-4
12.4.4. Physical Specifications...................................... 12-4
13. RB-PLI6 6 Way Mono Passive Line Isolation Unit .... 13-1
13.1. Introduction ......................................................... 13-1
13.2. System Block Diagram........................................... 13-1
Contents
Redbox User Handbook
13.3. Rear Panel Connections and Operation ..................... 13-2
13.3.1. Inputs............................................................ 13-2
13.3.2. Outputs ......................................................... 13-2
13.3.3. Ground-link Internal Jumpers............................ 13-3
13.4. Technical Specifications ......................................... 13-4
13.4.1. Audio Specification .......................................... 13-4
13.4.2. Connections.................................................... 13-4
13.4.3. Equipment Type .............................................. 13-4
13.4.4. Physical Specifications...................................... 13-4
14. RB-SS10 10 Way Stereo Analogue Source Selector/Mixer
……............................................................................ 14-1
14.1. Introduction........................................................... 14-1
14.2. System Block Diagram........................................... 14-2
14.3. Front Panel Indicators & Controls ............................ 14-3
14.3.1. Illuminated Push Buttons.................................. 14-3
14.3.2. Front Panel Gain Controls ................................. 14-3
14.3.3. Headphone Output .......................................... 14-3
14.3.4. Volume Control ............................................... 14-3
14.4. Rear Panel Connections and Operation ..................... 14-4
14.4.1. Inputs............................................................ 14-4
14.4.2. Outputs ......................................................... 14-4
14.4.3. Altering the Master Output Level........................ 14-4
14.4.4. RB-SS10 Additional Audio Input Connectors ........ 14-5
14.4.5. RB-SS10 Remote Start I/O ............................... 14-6
14.4.6. Remote Select/Switch Inputs ............................ 14-7
14.4.7. Status Outputs................................................ 14-7
14.5. Technical Specifications ......................................... 14-9
14.5.1. Audio Specifications ......................................... 14-9
14.5.2. Connections.................................................... 14-9
14.5.3. Equipment Type .............................................. 14-9
14.5.4. Physical Specifications...................................... 14-9
15. RB-LC3 3 Way Light/Power Controller .................... 15-1
15.1. Introduction ......................................................... 15-1
15.2. System Block Diagram........................................... 15-2
15.3. Rear Panel Connections and Operation ..................... 15-3
15.3.1. Switched Mains Outputs ................................... 15-3
15.3.2. Telephone Connections..................................... 15-3
15.3.3. Remote External Control Inputs......................... 15-3
15.3.4. Configuration Switches..................................... 15-4
Contents
Redbox User Handbook
15.3.5. Flash Rate Preset Potentiometer ........................ 15-6
15.4. Technical Specifications ......................................... 15-7
15.4.1. Connections.................................................... 15-7
15.4.2. Equipment Type .............................................. 15-7
15.4.3. Physical Specifications...................................... 15-7
16. Glossary .................................................................. 16-1
17. Connectors And Cabling ........................................17-1
17.1. XLR 3 Pin Connectors.......................................... 17-1
17.2. RCA Phono Connectors........................................ 17-1
17.3. ¼” Jack Connector ............................................. 17-2
17.4. D-Type Connector .............................................. 17-2
Index ……......................................................................... I-1
Contents
Redbox User Handbook
Figures
Fig W-1: Mains Lead Table ................................................. iv
Fig W-2: RB-RK1(B) Small Redbox Front Rack-mount Kit ......... v
Fig W-3: RB-RK2 Small Redbox Rear Rack-mount Kit .............. v
Fig W-4: RB-RK3 Large Redbox Rear Rack-mount Kit .............. v
Fig 1-1: RB-MA1 & RB-MA2 Front Panel.............................. 1-1
Fig 1-2: RB-MA1 & RB-MA2 Block Diagram Single Channel .... 1-2
Fig 1-3: RB-MA1 Rear Panel..............................................1-2
Fig 1-4: RB-MA2 Rear Panel..............................................1-2
Fig 2-1: RB-SM1 & RB-SM2 Front Panel..............................2-1
Fig 2-2: RB-SM1 & RB-SM2 Block Diagram Single Channel .... 2-2
Fig 2-3: RB-SM1 Rear Panel..............................................2-2
Fig 2-4: RB-SM2 Rear Panel..............................................2-2
Fig 3-1: RB-UL1 & RB-UL2 Front Panel ...............................3-1
Fig 3-2: RB-UL4 Front Panel ............................................. 3-1
Fig 3-3: RB-UL1 Block Diagram For a Single Channel ...........3-2
Fig 3-4: RB-UL1 Rear Panel ..............................................3-2
Fig 3-5: RB-UL2 Rear Panel ..............................................3-2
Fig 3-6: RB-UL4 Rear Panel ..............................................3-3
Fig 4-1: RB-LU4 Front Panel ............................................. 4-1
Fig 4-2: RB-LU4 Block Diagram......................................... 4-2
Fig 4-3: RB-LU4 Rear Panel ..............................................4-3
Fig 5-1: RB-BL2 Front Panel .............................................5-1
Fig 5-2: RB-BL4 Front Panel .............................................5-1
Fig 5-3: RB-BL2 Block Diagram Single Stereo Channel.......... 5-2
Fig 5-4: RB-BL2 Rear Panel ..............................................5-3
Fig 5-5: RB-BL4 Rear Panel ..............................................5-3
Fig 6-1: RB-SL2 Front Panel .............................................6-1
Fig 6-2: RB-SL2 Block Diagram ......................................... 6-2
Fig 6-3: RB-SL2 Rear Panel .............................................. 6-3
Fig 7-1: RB-DA6 Front Panel.............................................7-1
Fig 7-2: RB-DA6 Block Diagram ........................................ 7-2
Fig 7-3: RB-DA6 Rear Panel..............................................7-3
Fig 7-4: RB-DA6 Front Panel.............................................7-3
Fig 8-1: RB-HD1 Front Panel.............................................8-1
Fig 8-2: RB-HD1 Block Diagram ........................................8-2
Fig 8-3: RB-HD1 Front Panel.............................................8-2
Fig 8-4: RB-HD1 Rear Panel..............................................8-3
Fig 8-5 RB-HD1 Remote Connector .................................... 8-4
Contents
Redbox User Handbook
Fig 9-1: RB-HD6 Front Panel.............................................9-1
Fig 9-2: RB-HD6 Block Diagram ........................................9-2
Fig 9-3: RB-HD6 Rear Panel..............................................9-3
Fig 9-4: RB-HD6 Front Panel.............................................9-5
Fig 10-1: RB-SD1 Front Panel ......................................... 10-1
Fig 10-2: RB-SD1 Block Diagram..................................... 10-2
Fig 10-3: RB-SD1 Rear Panel .......................................... 10-3
Fig 10-4: RB-SD1 Front Panel ......................................... 10-6
Fig 11-1: RB-PMX4 Front Panel ....................................... 11-1
Fig 11-2: RB-PMX4 Block Diagram ................................... 11-2
Fig 11-3: RB-PMX4 Rear Panel ........................................ 11-3
Fig 11-4: RB-PMX4 Front Panel Controls ........................... 11-3
Fig 12-1: RB-LI2 Front Panel........................................... 12-1
Fig 12-2: RB-LI2 System Block Diagram........................... 12-1
Fig 12-3: RB-LI2 Rear Panel .......................................... 12-2
Fig 12-4: Jumper Positions on the RB-LI2 PCB................... 12-3
Fig 13-1: RB-PLI6 Front Panel......................................... 13-1
Fig 13-2: RB-PLI6 System Block Diagram ......................... 13-1
Fig 13-3: RB-PLI6 Rear Panel.......................................... 13-2
Fig 13-4: RB-PLI6 Ground-link Jumper Settings ................. 13-3
Fig 14-1: RB-SS10 Front Panel........................................ 14-1
Fig 14-2: RB-SS10 System Block Diagram ........................ 14-2
Fig 14-3: RB-SS10 Front Panel........................................ 14-3
Fig 14-4 : RB-SS10 Rear Panel........................................ 14-4
Fig 14-5: Analogue Audio Inputs Pin Connections............... 14-5
Fig 14-6: Remote Start Pin Connections ........................... 14-6
Fig 14-7: Connection Example ........................................ 14-6
Fig 14-8: Remote Select/Switch Input Connections ............ 14-7
Fig 14-9: Connection Example ........................................ 14-7
Fig 14-10: Status Output Pin Connections......................... 14-8
Fig 14-11: Connection Example....................................... 14-8
Fig 15-1: RB-LC3 Front Panel.......................................... 15-1
Fig 15-2: RB-LC3 Block Diagram ..................................... 15-2
Fig 15-3: RB-LC3 Rear Panel........................................... 15-3
Fig 15-4: Output 1 Configuration Setting .......................... 15-4
Fig 15-5: Output 2 Configuration Settings......................... 15-5
Fig 15-6: Output 3 Configuration Settings......................... 15-6
Fig 17-1 : XLR Connectors.............................................. 17-1
Fig 17-2 : RCA Phono Connector ..................................... 17-1
Contents
Redbox User Handbook
Fig 17-3 : ¼” Jack Connector.......................................... 17-2
Fig 17-4 : 25 Way D-Type Connectors.............................. 17-2
Fig 17-5 : 15 Way D-Type Connectors.............................. 17-2
Warranty, Safety & Installation Information
Redbox User Handbook i
Warranty, Safety & Installation Information
Warranty Information
Warranty and Liability - important the purchaser is advised to read this
clause.
(a) The Company agrees to repair or (at its discretion) replace Goods which are found
to be defective (fair wear and tear excepted) and which are returned to the Company
within 12 months of the date of despatch provided that each of the following are
satisfied:
(i) Notification of any defect is given to the Company immediately upon its becoming
apparent to the Purchaser;
(ii) The Goods have only been operated under normal operating conditions and have
only been subject to normal use (and in particular the Goods must have been
correctly connected and must not have been subject to high voltage or to ionising
radiation and must not have been used contrary to the Company's technical
recommendations);
(iii) The Goods are returned to the Company's premises at the Purchaser's expense;
(iv) Any Goods or parts of Goods replaced shall become the property of the Company;
(v) No work whatsoever (other than normal and proper maintenance) has been
carried out to the Goods or any part of the Goods without the Company's prior written
consent;
(vi) The defect has not arisen from a design made, furnished or specified by the
Purchaser;
(vii) The Goods have been assembled or incorporated into other goods only in
accordance with any instructions issued by the Company;
(viii) The defect has not arisen from a design modified by the Purchaser;
(ix) The defect has not arisen from an item manufactured by a person other than the
Company. In respect of any item manufactured by a person other than the Company,
the Purchaser shall only be entitled to the benefit of any warranty or guarantee
provided by such manufacturer to the Company.
(b) In respect of computer software supplied by the Company the Company does not
warrant that the use of the software will be uninterrupted or error free.
(c) The Company accepts liability:
(i) For death or personal injury to the extent that it results from the negligence of the
Company, it’s employees (whilst in the course of their employment) or its agents (in
the course of the agency);
(ii) For any breach by the Company of any statutory undertaking as to title, quiet
possession and freedom from encumbrance.
(d) Subject to conditions (a) and (c) from the time of despatch of the Goods from the
Company's premises the Purchaser shall be responsible for any defect in the Goods or
loss, damage, nuisance or interference whatsoever consequential economic or
otherwise or wastage of material resulting from or caused by or to the Goods. In
particular the Company shall not be liable for any loss of profits or other economic
losses. The Company accordingly excludes all liability for the same.
Warranty, Safety & Installation Information
ii Redbox User Handbook
(e) At the request and expense of the Purchaser the Company will test the Goods to
ascertain performance levels and provide a report of the results of that test.
The report will be accurate at the time of the test, to the best of the belief and
Knowledge of the Company, and the Company accepts no liability in respect of its
accuracy beyond that set out in Condition (a).
(f) Subject to Condition (e) no representation, condition, warranty or other term,
express or implied (by statute or otherwise) is given by the Company that the Goods
are of any particular quality or standard or will enable the Purchaser to attain any
particular performance or result, or will be suitable for any particular purpose or use
under specific conditions or will provide any particular capacity, notwithstanding that
the requirement for such performance, result or capacity or that such particular
purpose or conditions may have been known (or ought to have been known) to the
Company, its employees or agents.
(g)(i) To the extent that the Company is held legally liable to the Purchaser for any
single breach of contract, tort, representation or other act or default, the Company's
liability for the same shall not exceed the Price of the Goods.
(ii) The restriction of liability in Condition (g)(i) shall not apply to any liability
accepted by the Seller in Condition (c).
(h) Where the Goods are sold under a consumer transaction (as defined by the
Consumer Transactions (Restrictions on Statements) Order 1976) the statutory rights
of the Purchaser are not affected by these Conditions of Sale.
Returning the Warranty Card
In order to register the date of purchase so that we can keep you informed of any
design improvements or modifications, it is important to complete the warranty
registration document that is enclosed and return it to Sonifex Ltd in the UK.
For your own records you should write down the type of machine and the serial
number (which can be found on the rear panel of the Redbox).
Redbox Type
RB-……………………………………
Serial Number
RB………………………………………
Warranty, Safety & Installation Information
Redbox User Handbook iii
Safety of Mains Operated Redbox Equipment
Preparing the Machine for Use
Each Redbox is shipped in protective packaging and should be inspected for damage
before use. Where an item is found to have transit damage, notify your supplier
immediately with all the relevant details of the shipment. Packing materials should be
kept for inspection.
Equipment Safety
This equipment has been designed to meet the safety regulations currently advised in
the country of purchase.
The power cable supplied carries an EARTH conductor, which is connected internally to
the equipment chassis ground. This connection through a properly wired power
connector is essential for safe operation. Disconnection of this earth connection may
render the equipment unsafe, with a consequential possible electrical shock hazard
from exposed metallic parts.
This equipment will operate in a horizontal position and conforms to the
safety regulations specified by use of the CE Mark.
Warning: There are no user serviceably parts inside the machine. If you
should ever need to look inside the unit, always disconnect the mains supply
before removing the equipment covers.
Voltage Setting Checks
Ensure that the machine operating voltage is correct for your mains power supply by
checking the box in which your Redbox was supplied. The voltage is shown on the box
label. The available voltage settings are 115V, or 230V. Please note that the majority
of the Redboxes are switchable between 115V and 230V.
Fuse Rating
The Redboxes are supplied with a single fuse in the live conducting path of the power
infeed at the power supply. For reasons of safety it is important that the correct rating
and type of fuse is used. Incorrectly rated fuses could present a possible fire hazard,
under equipment fault conditions. The fuse ratings for the Redboxes are: -
Voltage Fuse
115 V 200mA, 5 x 20mm SB
230 V 100mA, 5 x 20mm SB
Power Cable and Connection
An IEC power connector is supplied with the Redbox, which has a moulded plug,
attached – this is a legal requirement. If no moulded plug has been supplied with
Warranty, Safety & Installation Information
iv Redbox User Handbook
Your Redbox, please contact your supplier, because an IEC connector is always
supplied from the Sonifex factory. If for any reason, you need to use the Redbox with
a different power cable, you should use the following wiring guidelines:
Wire Colour Connection
Green, or green and yellow Earth (E)
Blue, or Black Neutral (N)
Brown, or Red Live (L)
Ordering the Correct Mains Lead
When ordering a Redbox from Sonifex, it is helpful if you can specify your required
operating voltage and mains lead. After the product code add:
UK, for 230V, UK 3 pin to IEC lead
EC, for 230V, European Schuko 2 pin to IEC lead
US, for 115V, 3 pin to IEC lead
AU for 230V, Australasian 3 pin to IEC lead
Fig W-1: Mains Lead Table
E.g. order RB-BL2 UK for a UK IEC lead to be supplied.
Installation Information
Atmosphere
The units should be installed in an area that is not subject to excessive temperature
variation (<0°C, >50°C), moisture, dust or vibration.
Electromagnetic Radiation
The cover is connected to earth by means of the fixing screws. It is essential to
maintain this earth ground connection to ensure a safe operating environment and
provide electromagnetic shielding.
Please note that due to the large gain range of the RB-MA1/MA2 microphone
amplifiers, there can be a degradation of the audio signal if used near to sources of
intense electromagnetic radiation (e.g. video monitors and power cables).
Warranty, Safety & Installation Information
Redbox User Handbook v
Fitting Redboxes
Redboxes can be fixed to the underside of a mixing desk, or other surfaces using 2 off
No. 6 countersink screws.
They can also be rack-mounted, with either the front, or rear of the Redbox
positioned at the front of the rack:
Front Mounting Redboxes: For rack mounting smaller (28cm) units the optional
RB-RK1 (Red) or RB-RK1B (Black) kit can be used (which include 4 off M6 panel
fixing screws).
Fig W-2: RB-RK1(B) Small Redbox Front Rack-mount Kit
Rear Mounting Redboxes: For rear panel mounting you can use either the RB-RK2,
or RB-RK3, depending on the size of your Redbox.
RB-RK2 1U rear panel rack kit for small Redbox range, e.g., RB-BL2
Fig W-3: RB-RK2 Small Redbox Rear Rack-mount Kit
e.g. for fitting an RB-BL2:
RB-RK3 1U rear panel rack kit for large Redbox range, e.g., RB-DA6
Fig W-4: RB-RK3 Large Redbox Rear Rack-mount Kit
e.g. for fitting an RB-DA6:
Warranty, Safety & Installation Information
vi Redbox User Handbook
Wherever you see this symbol an RB-RK1 front panel rack kit can be used :
Wherever you see this symbol an RB-RK2 small Redbox rear panel 19” rack kit can be
used :
Wherever you see this symbol an RB-RK3 large Redbox rear panel 19” rack kit can be
used :
Note: When fitting the rear-mounting rack-kits, a notch has been left on the
inside of the right-hand rack-piece for the mains cable to pass through. Make
sure that the mains cable has been put through the notch before attaching
the right hand rack-piece.
Chapter 1 - RB-MA1 Single & RB-MA2 Dual Microphone Amplifiers
Redbox User Handbook 1-1
1. RB-MA1 Single & RB-MA2 Dual
Microphone Amplifiers
1.1. Introduction
Fig 1-1: RB-MA1 & RB-MA2 Front Panel
The RB-MA1 consists of an independent low-noise microphone pre-amplifier for
converting microphone level signals to line level, or for driving long lines from
microphones to mixing equipment. The RB-MA2 dual microphone amplifier consists of
two low noise pre amplifiers.
All connections and controls are on the rear panel. The microphone input is XLR-3
type and is electronically balanced. The input gain can be adjusted individually by a
recessed pre-set potentiometer.
The XLR-3 line output is electronically balanced and can be wired unbalanced by
grounding the non-phase signal, allowing you to feed both balanced and unbalanced
equipment.
For each channel there are independent switches to control a high pass filter (low
frequency roll-off at 125Hz) and to provide phantom power at +48V to the connected
microphone. An LED power indicator on the front panel displays the power supply
connection.
The rest of this chapter will refer to both RB-MA1 and RB-MA2 unless stated
otherwise.
Chapter 1 - RB-MA1 Single & RB-MA2 Dual Microphone Amplifiers
1-2 Redbox User Handbook
1.2. System Block Diagram
Fig 1-2: RB-MA1 & RB-MA2 Block Diagram Single Channel
1.3. Rear Panel Connections and Operation
Fig 1-3: RB-MA1 Rear Panel
Fig 1-4: RB-MA2 Rear Panel
Balanced
Microphone
Input
Professional
balanced output
Gain
Phantom
power
(48V)
48V
Phantom supply on/off
Ultra low noise
high gain
amplifier
L.F. Filter in/out
L.F.
filter
Disconnect the mains supply before removing the equipment covers.
OUTPUT
PHANTOM
POWER ON
LF FILTER ON
MIC INPUT
GAIN
This product must be earthed
115V - 230V
1.3.1
1.3.2
1.3.4 1.3.5
1.3.3
Disconnect the mains supply before removing the equipment covers.
OUTPUT 2
INPUT 2
LF FILTER
OUTPUT 1
PHANTOM
POWER
INPUT 1 INPUT 2
INPUT 1
LF FILTER
GAIN
MIC INPUT 2MIC INPUT 1
GAIN
This product must be earthed
115V - 230V
1.3.1
1.3.2
1.3.4 1.3.5
1.3.3
Chapter 1 - RB-MA1 Single & RB-MA2 Dual Microphone Amplifiers
Redbox User Handbook 1-3
1.3.1. Mic Inputs
The XLR 3 pin sockets used for the microphone are electronically balanced. They have
the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
1.3.2. Input Gain
Recessed pre-set potentiometers allow for adjustment of the gain of the microphone
inputs. This provides a gain range of 36dB to 75dB which enables the use of dynamic
and powered microphones. Connect the mic input and adjust the gain until the line
output is at the level that you need.
Fig 1-4: Switch to Control LF Filter and Phantom Power
1.3.3. Using Phantom Powered Microphones
For the input channel there are independent switches to provide phantom power at
+48V to the connected microphones. With phantom power selected, a voltage of
+48V is applied to pins 2 and 3 of the XLR connector to power the microphone,
supplied through 6k8 resistors giving a current of 14mA. Phantom power is used when
the switch is pointing towards the arrow.
1.3.4. Using the LF Filter
A switch also provides control for a high pass filter with low frequency roll off at
125Hz. The roll-off filter is in when the switch is in the down position (towards the
arrow).
1.3.5. Output
The XLR 3 pin plug output connector is electronically balanced and can be wired
unbalanced by grounding the non-phase signal, allowing you to feed balanced and
unbalanced equipment. It has the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
The connector provides a line level output with an impedance of <50Ω and a
maximum output level of +28dBu.
1
On On
On On
2 3 4
1. Channel 1 Low Frequency (L.F.) Filter
2. Channel 1 Phantom Power
3. Channel 2 Phantom Power (only applies to MA2)
4. Channel 2 Low Frequency (L.F.) Filter (only applies to MA2)
Chapter 1 - RB-MA1 Single & RB-MA2 Dual Microphone Amplifiers
1-4 Redbox User Handbook
1.4. Technical Specifications
1.4.1. Audio Specifications
Maximum Input Level: -10dBu
Maximum Output Level: +28dBu
Input Impedance: 20kΩ nominal balanced
Output Impedance: <50Ω
Low Frequency Roll-Off: 125Hz @ 6dB/octave
Gain Range: Adjustable 36dB to 75dB gain
E.I.N: 130dB
Distortion: 0.01% THD @ 1kHz, ref +8dBu output
Common Mode Rejection: >66dB typically
Phantom Power: 48V
Frequency Response: 20Hz to 20kHz ±0.1dB (600Ω load, ref 1kHz)
1.4.2. Connections
Input: 1 (2 on RB-MA2) x XLR 3 pin female (Balanced)
Output: 1 (2 on RB-MA2) x XLR 3 pin male (Balanced, can be
unbalanced)
Mains Input: Filtered IEC, 110V-120V, or 220-240V switchable, fused,
6W maximum
1.4.3. Equipment Type
RB-MA1: Single microphone amplifier
RB-MA2: Dual microphone amplifier
1.4.4. Physical Specifications
Dimensions (Raw): 28cm (W) x 10.8cm (D) x 4.2cm (H) (1U)
Dimensions (Boxed): 36cm (W) x 20.5cm (D) x 6cm (H)
Weight RB-MA1: Nett: 0.90kg Gross: 1.35kg
Weight RB-MA2: Nett: 1.00kg Gross: 1.45kg
Chapter 2 - RB-SM1 Single & RB-SM2 Dual Stereo to Mono Converter
Redbox User Handbook 2-1
2. RB-SM1 Single & RB-SM2 Dual Stereo To
Mono Converter ……
2.1. Introduction
Fig 2-1: RB-SM1 & RB-SM2 Front Panel
The RB-SM1 consists of an independent converter that will produce a fully buffered
and balanced mono line output from a stereo input. The RB-SM2 consists of two
independent converters and will produce two fully buffered and balanced mono line
outputs from two stereo inputs.
All connections are on the rear panel. The XLR-3 inputs are electronically balanced
with an impedance of 20kΩ bridging. These can be wired unbalanced to accept an
output from domestic equipment.
The XLR-3 line output’s are electronically balanced with an output impedance of
<50Ω. The output’s can be wired unbalanced by grounding the non-phase signal,
allowing you to feed both balanced and unbalanced equipment.
Output gain adjustment using a pre-set potentiometer for both converters allows a
normalised mono output from domestic stereo equipment. The potentiometer is
accessible through the rear panel. An LED power indicator on the front panel displays
the power supply connection.
The rest of this manual will refer to the SM1 unless stated otherwise.
Chapter 2 - RB-SM1 Single & RB-SM2 Dual Stereo to Mono Converter
Redbox User Handbook 2-3
2.3.1. Stereo Inputs 1 (& 2)
The input’s are a stereo pair consisting of two XLR 3 pin sockets electronically
balanced with an impedance of 20kΩ bridging. They can be wired unbalanced to
accept an output from domestic equipment. They have the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
2.3.2. Mono Output 1 (& 2)
The XLR 3 pin mono output connectors are electronically balanced with an output
impedance of <50Ω. They can be wired unbalanced by grounding the non-phase
signal, enabling you to feed both balanced and unbalanced equipment. The output has
the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
2.3.3. Output Gain
Output gain adjustment using a pre-set potentiometer for the converters allows a
normalised mono output from domestic stereo equipment. The potentiometers are
accessible through the rear panel and provide a gain range of 8dB loss to 18dB gain.
Chapter 2 - RB-SM1 Single & RB-SM2 Dual Stereo to Mono Converter
2-4 Redbox User Handbook
2.4. Technical Specifications
2.4.1. Audio Specifications
Maximum Input Level: +28dBu
Maximum Output Level: +28dBu
Input Impedance: >20k balanced bridging Ω
Output Impedance: <50Ω balanced
Frequency Response: 20Hz to 20kHz ±0.1dB (600Ω load, ref 1kHz)
Gain Range: Adjust 8dB loss to 18dB gain, ref 0dB input on L and R
Common Mode Rejection: >66dB typically
Distortion: 0.01% THD @ 1kHz, ref +8dBu output
Noise: -100dB unity gain, ref +8dBu output
2.4.2. Connections
Inputs: 2 (4 on RB-SM2) x XLR 3 pin female (Balanced, can be
unbalanced)
Output: 1 (2 on RB-SM2) x XLR 3 pin male (Balanced, can be
unbalanced)
Mains Input: Filtered IEC, 110V-120V, or 220-240V switchable, fused,
6W maximum
2.4.3. Equipment Type
RB-SM1: Dual stereo to mono converter
RB-SM2: Single stereo to mono converter
2.4.4. Physical Specifications
Dimensions (Raw): 28cm (W) x 10.8cm (D) x 4.2cm (H) (1U)
Dimensions (Boxed): 36cm (W) x 20.5cm (D) x 6cm (H)
Weight RB-SM1: Nett: 1.00kg Gross: 1.45kg
Weight RB-SM2: Nett: 1.05kg Gross: 1.50kg
Chapter 4 - RB-LU4 Quad Stereo Balanced to Unbalanced Converter
Redbox User Handbook 4-1
4. RB-LU4 Quad Stereo Balanced To
Unbalanced Converter ……
4.1. Introduction
RB-LU4
QUAD BAL-UNBAL CONV ERTER
Fig 4-1: RB-LU4 Front Panel
The RB-LU4 is a quad stereo unit for interfacing professional balanced equipment to
domestic, or semi-pro unbalanced line levels.
All connections are on the rear panel. The eight XLR-3 electronically balanced inputs
have an impedance of 20kΩ bridging and are routed to eight unbalanced RCA phono
outputs with an output impedance of <50Ω.
The output gain can be individually adjusted for left and right channels by using pre-
set potentiometers accessible through the rear panel. An LED power indicator is
situated on the front panel, which displays the power supply connection.
Chapter 5 - RB-BL2 Single & RB-BL4 Dual Bi-Directional Matching Converter
Redbox User Handbook 5-1
5. RB-BL2 Single & RB-BL4 Dual Bi-
Directional Matching Converter
5.1. Introduction
Fig 5-1: RB-BL2 Front Panel
RB-BL4
DUAL BI -DIRECT IONAL CONVERT ER
Fig 5-2: RB-BL4 Front Panel
The RB-BL2 is a bi-directional stereo unit for interfacing domestic, or semi-pro
unbalanced equipment to professional balanced line levels, and vice-versa. The RB-
BL4 has dual bi-directional stereo capability.
All connections are on the rear panel. The XLR-3 electronically balanced inputs have
an impedance of 20kΩ bridging and are routed to unbalanced RCA (phono) outputs
with an output impedance of <50Ω.
The RCA unbalanced inputs have an impedance of 10kΩ bridging and are routed to
balanced XLR-3 outputs with an output impedance of <50Ω.
The output gain can be individually adjusted for left and right channels by using pre-
set potentiometers accessible through the rear panel. An LED power indicator on the
front panel displays the power supply connection.
Chapter 5 - RB-BL2 Single & RB-BL4 Dual Bi-Directional Matching Converter
5-2 Redbox User Handbook
5.2. System Block Diagram
Professional
balanced output 2 -L
Gain
Gain
Gain
Gain
Input 1 -L
professional
balanced
Input 1 -R
professional
balanced
Input 2 -L
consumer
unbalanced
Input 2 -R
consumer
unbalanced
Phono
Phono
Phono
Phono Consumer unbalanced
output 1 -L
Consumer unbalanced
output 1 -R
Professional
balanced output 2 -R
Fig 5-3: RB-BL2 Block Diagram Single Stereo Channel
Chapter 5 - RB-BL2 Single & RB-BL4 Dual Bi-Directional Matching Converter
Redbox User Handbook 5-3
5.3. Rear Panel Connections and Operation
Fig 5-4: RB-BL2 Rear Panel
Fig 5-5: RB-BL4 Rear Panel
Disconnect the mains supply bef ore removing the equipment cover s.
This product must be earthed
L - OUTPUT 4 - RINPUT 4OUTPUT 3
LEVEL LEVEL
L
R
L - INPUT 3 - R
LEVEL
L - OUTPUT 2 - RINPUT 2OUTPUT 1
LEVEL
L - INPUT 1 - R
L
R
115V - 230V
Disconnect the mains supply before removing the equipment covers.
INPUT 2OUTPUT 1
LEVEL LEVEL
L - INPUT 1 - R
L
R
L - OUTPUT 2 - R
5.3.1.1 5.3.1.2 5.3.2.1 5.3.2.2
This product must be earthed
115V - 230V
5.3.1.3 5.3.2.3

Termékspecifikációk

Márka: Sonifex
Kategória: nincs kategorizálva
Modell: Redbox RB-LU4

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