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Sonifex RB-HD2 Dual Stereo Headphone Amplifier (1U)
Vendor: Sonifex
Sonifex RB-HD2 Dual Stereo Headphone Amplifier (1U)
Using a single stereo or mono input, the RB-HD2 is a high-performance 2-way stereo headphone distribution amplifier that can power up to two pairs of professional stereo headphones. A button on the back panel allows the left channel input to distribute a mono signal to all four outputs, which includes both earpieces of a stereo headphone set. To avoid unintentional knocks, the stereo/mono switch is situated on the back panel. Electronically balanced and wired unbalanced XLR-3 inputs are available. The master input signal level is adjusted to the outputs via two pre-set controls located on the rear panel. Every output has a ¼" stereo jack connector and can supply 150 to headphones with resistances ranging from 32 ohms to 600 ohms. With a front panel volume control of their own, each output is buffered separately. The power supply connection is shown via an LED power indicator on the front panel.
Audio Specification |
|
| Input impedance: | >20kΩ balanced bridging (main) |
| Max Input Level: | +28dBu |
| Input Gain Range: | -12dB to +20dB gain (pre-set pots) |
| Output Level: | Drives 150mW into 32Ω to 600Ω headphones |
| Volume Controls: | -80dB to +11dB gain |
Connections |
|
| Main Stereo Inputs: | 2 x XLR 3 pin female (balanced, can be unbalanced) |
| Outputs: | 2 x ¼” (6.35mm) A-gauge 3-pole stereo jack sockets |
| Mains Input: | Filtered IEC, switchable 110-120V, or 220-240V, fused, 9W max |
| Fuse Rating: | Anti-surge fuse 100mA 20 x 5mm (230VAC) Anti-surge fuse 250mA 20 x 5mm (115VAC) |
Equipment Type |
|
| RB-HD2: | Dual stereo headphone amplifier |
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): | 53cm (W) x 20.5cm (D) x 6cm 21” (W) x 8” (D) x 2.4” |
| Weight: | Nett: 1.35kg Gross: 2.0kg Nett: 3lbs Gross: 4.4lbs |
