Sonifex RB-HD2 Dual Stereo Headphone Amplifier
Dual Stereo Headphone Amplifier (1U)
MPN: RB-HD2 SKU: RB-HD2
The RB-HD2 is a high performance 2-way stereo headphone distribution amplifier for driving up to 2 pairs of professional stereo headphones from a single stereo or mono input. A switch on the rear panel enables the distribution of a mono signal to all four outputs (i.e. both earpieces of a pair of stereo headphones) via the left channel input. The stereo/mono switch is located on the rear panel to prevent accidental knocking.
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The RB-HD2 is a high performance 2-way stereo headphone distribution amplifier for driving up to 2 pairs of professional stereo headphones from a single stereo or mono input. A switch on the rear panel enables the distribution of a mono signal to all four outputs (i.e. both earpieces of a pair of stereo headphones) via the left channel input. The stereo/mono switch is located on the rear panel to prevent accidental knocking.
The XLR-3 inputs are electronically balanced and can be wired unbalanced. There are two pre-set controls on the rear panel that adjust the level of the master input signal to the outputs. Each output is on a ¼” stereo jack socket and is designed to drive 150mW into 32 ohm to 600 ohm stereo headphones. The outputs are individually buffered with their own front panel volume control. A LED power indicator on the front panel displays the power supply connection.
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): 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: 3.0lbs Gross: 4.4lbs
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