Sonifex RB-UL2 Dual Unbalanced to Balanced Converter

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The RB-UL2 is a dual stereo unit for interfacing domestic, or semi-pro unbalanced equipment to professional balanced line levels. The four RCA unbalanced inputs have an impedance of 10kohms and are routed to four balanced XLR-3 outputs with an output impedance of <50ohms. The output gain can be individually adjusted for left and right channels by using pre-set potentiometers accessible through the rear panel.

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
Common Mode Rejection	>66dB typically
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
Audio Inputs	4 x RCA phono (unbalanced)
Audio Outputs	4 x XLR 3 pin male (balanced)
Mains Input	Filtered IEC, switchable 110-120V, or 220-240V, fused, 6W max
Physical Specification
Weight	Nett: 1.05kg Gross: 1.5kg
Dimensions	Raw: 28cm (W) x 10.8cm (D) x 4.2cm (H) Boxed: 36cm (W) x 20.5cm (D) x 6cm (H)

Equipment Type
Code	Description	Plug
RB-UL2 UK	Dual Balanced to Unbalanced Single Converter, 230V (UK 3 pin to IEC)
RB-UL2 EU	Dual Balanced to Unbalanced Single Converter, 230V (European Schuko 2 pin to IEC)
RB-UL2 US	Dual Balanced to Unbalanced Single Converter, 115V (USA 3 pin to IEC)
RB-UL2 AU	Dual Balanced to Unbalanced Single Converter, 230V (Australasian 3 pin to IEC)

Accessories for this Product
Code	Description
RB-RK1	1U front panel rackmount kit for small Redbox
RB-RK2	1U rear panel rackmount kit for small Redbox