Description
SONIFEX RB-SM2 Dual Stero to Mono Converter
The RB-SM2 is a dual version of the RB-SM1, consisting of two independent converters which 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 outputs are electronically balanced with an output impedance of <50Ω. The outputs can be wired unbalanced by grounding the non-phase signal, allowing you to feed both balanced and unbalanced equipment.
Output gain adjustment using pre-set potentiometers for both converters allows a normalized mono output from domestic stereo equipment. The potentiometers are accessible through the rear panel.
Audio Specification
Maximum Input Level: +28dBuMaximum
Output Level: +28dBu
Input Impedance: >20kΩ balanced bridging
Output Impedance: <50Ω balanced
Frequency Response: 20Hz to 20kHz ±0.1dB (600Ω load, ref 1kHz)
Gain Range: Adjust -8dB 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
Connections
Inputs: 4 x XLR 3 pin female (Balanced, can be unbalanced)
Outputs: 2 x XLR 3 pin male (Balanced, can be unbalanced)
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-SM2:Dual stereo to mono converter
Physical Specification
Dimensions (Raw):
28cm (W) x 10.8cm (D) x 4.2cm (H) (1U)
11” (W) x 4.3” (D) x 1.7” (H) (1U)
Dimensions (Boxed):
36cm (W) x 20.5cm (D) x 6cm (H)
14.2” (W) x 8” (D) x 2.4” (H)
Weight:
Net: 1.05kg
Gross: 1.50kg
Net: 2.3lbs
Gross: 3.3lbs
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