Gotham
Audio

RB-UL4 Quad Unbalanced to Balanced Converter


RB-UL4 Quad Unbalanced to Balanced Converter

Audio Specification
Maximum Input Level

+28dBu
Input Impedance

10 kohms
Maximum Output Level

+ 28dBu
Output Impedance

<50ohms
Distortion

0.01% THD @ 1kHz, ref +8dBu output
Noise

-100dB, unity gain, ref +8dB output
Frequency Response

20Hz to 20kHz +/- 0.1dB (600 ohm load, ref 1kHz)
Gain Range

Balanced out -15dBu to +15dBu, ref -15dBu into unbalanced input

Connections
Inputs

8 x RCA phono (Unbalanced)
Outputs

8 x XLR 3 pin male (Balanced)
Mains Input

Filtered IEC, 110-120V, or 220-240V, fused

Audio Interfaces - Redbox - Matching Converters

 

RB-UL4
RB-UL4 Iso
RB-UL4 Front
RB-UL4 Rear
Iso View
Front View
Rear View


RM-RK3 logo  RM-FR1 logo

The RB-UL4 Quad Stereo Unbalanced to Balanced Converter.

RB-UL4 Quad Stereo Unbalanced to Balanced Converter

The RB-UL4 is a 1U rack-mount quad stereo unit for interfacing domestic or semi-professional unbalanced equipment to professional balanced line levels.

All connections are on the rear panel. The eight RCA unbalanced inputs have an impedance of 10kΩ and
are routed to eight 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.

RB-UL4 Diagram

RB-UL4 Block Diagram.

See larger image >

Technical Specification For RB-UL4

Audio Specification
Maximum Input Level: +28dBu
Maximum Output Level: +28dBu
Input Impedance: >10kΩ
Output Impedance: <50Ω
Distortion: 0.01% THD @ 1kHz, ref +8dBu output
Noise: -100dB, unity gain, ref +8dBu output
Frequency Response: 20Hz to 20kHz ±0.1dB (600Ω load, ref 1kHz)
Gain Range: Balanced output : -15dBu to +15dBu, ref -15dBu into unbalanced RCA input
   

Connections
Inputs: 8 x RCA phono (Unbalanced)
Outputs: 8 x XLR 3 pin male (Balanced)
Mains Input: Filtered IEC, switchable 110-120V, or 220-240V, fused, 6W max
Fuse Rating: Anti-surge fuse 100mA 20 x 5mm (230VAC)
Anti-surge fuse 250mA 20 x 5mm (115VAC)
   

Equipment Type
RB-UL4: Quad stereo unbalanced to balanced converter
   

Physical Specification
Dimensions (Raw): 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U)
19” (W) x 4.3” (D) x 1.7” (H) (1U)
Dimensions (Boxed): 58.5cm (W) x 22.5cm (D) x 7cm (H)
23” (W) x 8.9” (D) x 2.8” (H)
Weight: Nett: 1.3kg  Gross: 1.9kg
Nett: 2.9lbs Gross: 4.2lbs