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Sonifex RB-LI2 Stereo Line Isolation Unit
Vendor: Sonifex
Sonifex RB-LI2 Stereo Line Isolation Unit
Audio signals from inter-area ground hum loops, which may result from devices powered by separate main power supplies or different phases on a single supply, are isolated using the RB-LI2 stereo line isolation unit. A transformer, which contains internal jumpers to enable the outputs to be balanced about the ground, connects the input and output. Additionally, the RB-LI2 has a loop-through output that enables it to be connected to a line and create a transformer-balanced distribution point. By utilizing the rear panel to access pre-set potentiometers, the separated outputs can be separately changed. The stereo line isolation unit's gain range is -15dB to +13.5dB (28.5dB). When audio needs to be driven over a sizable amount of cable, this device comes in handy. Ground loop currents that can exist in non-isolated transmissions are eliminated by isolating the signal with transformers.
Audio Specification |
|
| Output Impedance: | <150Ω |
| Distortion: | 0.5% THD @ 40Hz, ref +17dBu output |
| Common Mode Rejection: | <64dB typically |
| Frequency Response: | 10Hz to 36kHz ±0.5dB |
| Output Gain Range: | -15dB to +13.5dB |
Connections |
|
| Inputs: | 2 x XLR 3 pin female (Balanced) |
| Isolated Outputs: | 2 x XLR 3 pin male (Balanced) |
| Loop Outputs: | 2 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-L12: | Stereo line isolation unit |
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: | Nett: 1.1kg Gross: 1.5kg Nett: 2.4lbs Gross: 3.3lbs |
