Sonifex RB-HD6 6 Way Stereo Headphone Distribution Amplifier (1U)
Vendor: Sonifex
Available
Sonifex RB-HD6 6 Way Stereo Headphone Distribution Amplifier (1U)
The RB-HD6 headphone distribution amplifier is a 1U rack-mount device that can be used as six separate headphone amplifiers, each having an input and volume control, or it can distribute stereo music to up to six separate pairs of headphones. Common headphone feeds for guests in a radio studio combined with a separate derived feed—possibly with talk-back—for the broadcaster may be a typical application.
The primary stereo input is connected to XLR-3 connectors on the back panel. These connectors can be wired unbalanced and are electronically balanced. To give a mono feed to the headphones, a stereo/mono input switch on the back panel sums the left and right outputs. There is a jack connection on each output channel that allows the unit to receive an override audio signal. The headphone output from the master audio signal will be switched to the audio on the jack plug when it is plugged in. By adjusting internal jumpers, the override audio inputs can also be independently set as parallel outputs of the front sockets. The channels that use the override inputs remain unaffected by the master volume control, which modifies the overall level of the six outputs. The master volume control adjusts the overall level of the 6 outputs and does not affect the level of channels using the override inputs. The master volume can be disabled by internal jumpers.
Audio Specification |
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Input impedance: | >20kΩ balanced bridging, >10kΩ unbalanced override |
Output Level: | Drives 150mW into 32Ω to 600Ω headphones |
Individual Volume Control: | -60dB to +18dB gain |
Max Input Level: | +28dBu |
Override Inputs: | +3dBu for full volume at +18dB gain |
Master Vol Control: | ±10dB gain |
Connections |
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Main Stereo Inputs: | 2 x XLR 3 pin female (balanced, can be unbalanced) |
Insert Inputs/Parallel Outputs: | 6 x ¼” (6.35mm) A-gauge 3-pole stereo jack sockets (unbalanced) |
Outputs: | 6 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 |
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RB-HD6: | 6 way stereo headphone distribution amplifier |
Physical Specification |
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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): | 58.5cm (W) x 22.5cm (D) x 7cm (H) 23” (W) x 8.9” (D) x 2.8” (H) |
Weight: | Nett: 1.35kg Gross: 2.0kg Nett: 3lbs Gross: 4.4lbs |