MTR HPA-6 Headphone Amplifier 19 Inch 1U Rack Mount. Stereo/Mono Headphone Amp (pre-owned)

Condition: Very good. Signs of use but no real cosmetic flaws. Full working order.

This high powered and highly reliable headphone amp features two separate main stereo inputs on ¼” TRS stereo jacks, plus a stereo Auxiliary input feeding stations 1 and 2 – or, any combination of all six stations by simple internal re-wiring.

This Auxiliary signal is added to the main inputs, and can be used for click tracks, talkback from the control room for more effective communication between the engineer/producer and musicians, or silent rehearsing to an mp3 player/tablet/CD, etc. It is also used for teacher-pupil communication in language laboratories. A two-colour led is fitted to each of the three inputs, showing green for signal present, and red when approaching input overload.

MTR HPA-6 DetailThe Main Input 2 also has bass and treble boost and cut for greater clarity and control when overdubbing. Each of the 6 headphone outputs has its own volume control, an input 1 or 2 selector button, and a mono switch sums the left and right signals. The rear panel has duplicate input sockets for tidy wiring when rackmounted. Very solid all-steel construction, and volume is more than ample with headphones ranging from 8 to 2,000 Ohms impedance.

Specifications

• A,B & Aux input impedance: 20Kohms unbalanced stereo
• A,B & Aux input sensitivity: 0.25 volts nominal
• Max Output: 2v, 500mW into 8 Ω – 4.7v, 35mW into 600 Ω – 4.8v, 10mW into 2,000 Ω
• High & Low e.q: 10kHz & 100Hz, ± 13dB.
• System Gain: 28dB, e.q. flat.
• Hum & Noise: -88dB unweighted.
• T.H.D.: 0.07% @ 1KHz
• Freq. Response: 10Hz-20kHz ± 3dB
• Max Consumption: 100mA
• Dimensions: 44 x 483 x 205 mm
• Weight: 4 Kilos