Sonifex RB-HD1 Headphone Distribution Amplifier

 

 

A mono input can be mixed into the main headphone feed, for example, for mixing in talkback to the headphones. This has an input level control via a recessed adjustable potentiometer. The mono mix input can also be controlled remotely. A stereo/mono switch is recessed on the rear panel to prevent accidental knocking. With mono selected, audio is sent to both left and right ear pieces. A LED power indicator on the front panel displays the power supply connection.

 

 

 Input impedance: >20kΩ balanced bridging (main)

Output Level: Drives 150mW into 32Ω to 600Ω headphones

Mono Mix Input Gain Range: 22dBu 

Max Input Level: +28dBu

Volume Control: -80dB to +11dB gain

   

 

 Main Stereo Inputs: 2 x XLR 3 pin female (balanced, can be unbalanced)

Mono Mix Input: 1 x XLR 3 pin female (balanced, can be unbalanced)

Outputs: 2 x ¼” (6.35mm) A-gauge 3-pole stereo jack sockets

Remote Control: 9-pin D-type socket

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)

   

 

RB-HD1: Stereo headphone amplifier

   

 

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