Manual
Table Of Contents
- Contents
- Figures
- Warranty
- Safety Information
- 1 RB-UL1 Single, RB-UL2 Dual & RB-UL4 Quad Stereo Unbalanced To Balanced Converters
- 2 RB-LU4 Quad Stereo Balanced To Unbalanced Converter
- 3 RB-BL2 Single & RB-BL4 Dual Bi-Directional Matching Converter
- 4 RB-PA2 Dual Stereo RIAA Phono Amplifier
- 5 RB-LI2 Stereo Line Isolation Unit
- 6 RB-PLI6 6 Way Mono Passive Line Isolation Unit
- 7 RB-DA6 & RB-DA6G 6 Way Stereo Distribution Amplifier
- 8 RB-DA4x5 4 Input 4 x 5 Output Distribution Amplifier/Mixer
- 9 RB-DDA6A 6 Way Stereo AES/EBU Digital Distribution Amplifier and RB-DDA6S 6 Way Stereo S/PDIF Dig
- 10 RB-DDA6W 6 Way Word Clock Distribution Amplifier
- 11 RB-HD1 Stereo Headphone Amplifier & RB-HD2 Dual Headphone Amplifier
- 12 RB-HD6 6 Way Headphone Distribution Amplifier
- 13 RB-DHD6 Digital 6 Way Headphone Distribution Amplifier
- 14 Connectors & Cabling
- Glossary
14
Redbox User Handbook No 2
MATCHING CONVERTERS - RB-PA2
Rear Panel Connections and Operation
RCA
Phono
Inputs
RCA
Phono
Inputs
Stereo
Balanced
Outputs
Stereo
Balanced
Outputs
Output
Level
Adjustments
Pick-up
Grounding
Post
Pick-up
Grounding
Post
Fig 4-3: RB-PA2 Rear Panel.
RCA Phono Inputs (Left and Right)
The stereo left and right RCA inputs are unbalanced and have an impedance of 47kΩ. They
are routed to the stereo balanced XLR 3 pin output connectors.
Outputs (Left and Right)
The XLR 3 pin output plug connectors are electronically balanced with an output
impedance of <50Ω. They have the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
Output Level Adjustment
The output gain can be individually adjusted for left and right channels through pre-set
potentiometers which are accessible through the rear panel. The gain range of each channel
is adjustable between 30dB gain and 58dB gain.
Pick-up Grounding Post
This acts as an earth ground connection to connect to a turntable pick-up ground point.
MATCHING CONVERTERS
4