Manual
Table Of Contents
- Analogue Redbox User Handbook rev 1.92
- Contents
- Figures
- Warranty, Safety & Installation Information
- RB-MA1 Single & RB-MA2 Dual Microphone Amplifiers
- RB-SM1 Single & RB-SM2 Dual Stereo To Mono Converter
- RB-UL1 Single, RB-UL2 Dual & RB-UL4 Quad Stereo Unbalanced
- RB-LU4 Quad Stereo Balanced To Unbalanced Converter
- RB-BL2 Single & RB-BL4 Dual Bi-Directional Matching Converte
- 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 Analogue Preset Mixer
- RB-LI2 Stereo Line Isolation Unit
- RB-PLI6 6 Way Mono Passive Line Isolation Unit
- RB-SS10 10 Way Stereo Analogue Source Selector/Mixer
- RB-LC3 3 Way Light/Power Controller
- Glossary
- Connectors And Cabling
- Index
Chapter 8 - RB-HD1 Stereo Headphone Amplifier
8-4 Redbox User Handbook
8.4.5. Remote Connector
The remote connector is a 9-pin D-type socket, which is situated on the rear panel. It
has connections as shown below.
Pin No. Signal I/O Description
Pin 1 Pot wiper I Volume control signal
Pin 2 Pot top O +5V
Pin 3 N/C - No connection
Pin 4 N/C - No connection
Pin 5 N/C - No connection
Pin 6 Pot bottom - Ground
Pin 7 N/C - No connection
Pin 8 MIX_EN I Make to pin 9
Pin 9 0V - Ground
Fig 8-5 RB-HD1 Remote Connector
8.5. Technical Specifications
8.5.1. Audio Specifications
Maximum Input Level: +28dBu
Input Impedance: >20kΩ balanced bridging (main),
>10kΩ unbalanced override
Output Level: Drives 150 mW into 32Ω to 600Ω headphones
Volume Control: -80dB to +11dB gain
Mono Mix Input Gain: 22dBu
8.5.2. Connections
Main Stereo Input: 2 x XLR 3 pin female (Balanced, can be wired unbalanced)
Mono Mix Input: 1 x XLR 3 pin female (Balanced, can be wired unbalanced)
Outputs: 2 x ¼” (6.3mm) A/B gauge 3-pole stereo jack sockets
Remote Control: 9-pin D-type socket
Mains Input: Filtered IEC, 110V-120V, or 220-240V switchable, fused, 9W
maximum
8.5.3. Equipment Type
RB-HD1: Stereo headphone amplifier
8.5.4. Physical Specifications
Dimensions (Raw): 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U)
Dimensions (Boxed): 53cm (W) x 20.5cm (D) x 6cm
Weight: Nett: 1.6kg Gross: 2.2kg