Sonifex RB-UL2 Dual Stereo Unbalanced to Balanced Converter
The RB-UL2 is a dual stereo unit for interfacing domestic or semi-professional unbalanced equipment to professional balanced line levels. All connections are on the rear panel. Four RCA unbalanced inputs have an impedance of 10kΩ and are routed to four 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, allowing you to feed both balanced and unbalanced equipment.
RB-UL2 Block Diagram.
Technical Specification For RB-UL2 |
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Audio Specification |
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| Maximum Input Level: | +28dBu |
| Input Impedance: | >10kΩ |
| Maximum Output Level: | +28dBu |
| 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 |
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| Inputs: | 4 x RCA phono (Unbalanced) |
| Outputs: | 4 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 |
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| RB-UL2: | Dual stereo unbalanced to balanced converter |
Physical Specification |
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| 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: | Nett: 1.05kg Gross: 1.5kg Nett: 2.3lbs Gross: 3.3lbs |