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Sonifex RB-HD6 Headphone Distribution Amplifier

Heaphone DA

Sonifex RB-HD6 Headphone Distribution Amplifier

Sonifex RB-HD6 Headphone Distribution Amplifier

Heaphone DA

SKU: 19060

Cat no: 6025

  • 6 x 6.35mm jack inputs
  • Individually control 6 sets of headphones
  • Rack mountable
  • Versatile use
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Estimated Delivery 1 to 2 days

£345.00 (ex vat) £414.00 (incl vat)

Sonifex RB-HD6 Headphone Distribution Amplifier


The Sonifex Redbox RB-HD6 headphone distribution amplifier is a 1U rack-mount which distributes stereo audio to up to 6 different sets of headphones, or can be used as 6 independent headphone amplifiers, each with their own input and volume control for ease of use. A typical application might be to provide common headphone feeds for guests in a radio studio, with a separately derived feed, perhaps including talk-back, for the presenter.

The main stereo input is on XLR-3 connectors on the rear panel which are electronically balanced and can be wired unbalanced. A stereo/mono input select switch on the rear panel sums left and right outputs to provide a mono feed to the headphones. The unit can receive an override audio signal via a jack socket for each output channel. Plugging in the jack plug will divert the headphone output from the master audio signal to the audio present on the jack plug. The override audio inputs can also be individually configured as parallel outputs, by setting internal jumpers.

The master volume control adjusts 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.

Product Specification

Audio Specification

Maximum Input Level +28dBu

Input Impedance >20kohms balanced bridging, >10kohms unbalanced override

Output Level Drives 150mW into 32-600ohm headphones

Override Inputs +3dBu for full volume at +18dB gain

Master Volume Control +/-10dB gain

Individual Volume Control -60dB to + 18dB gain

Connections

Main Stereo Inputs 2 x XLR 3 pin female (balanced)

Override Inputs/Outputs 6 x 0.25" (6.35mm) A-gauge 3-pole stereo jack sockets (unbalanced)

Outputs 6 x 0.25" (6.35mm) A-gauge 3-pole stereo jack sockets

Mains Input Filtered IEC, switchable 110-120V, or 220-240V, fused, 9W max

Physical Specification

Weight Nett: 1.35kg

Gross: 2.0kg

Dimensions Raw: 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U)

Boxed: 53cm (W) x 20.5cm (D) x 6cm (H)

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