Glensound GS-HA011 - Headphone Amplifier
Portable, belt pack style single channel headphone amplifier, Battery(PP3) or DC power
Audio input is transformer balanced with recessed adjustable gain control. Input connection is via XLR with a loop through XLR output. Two headphone sockets are offered, 1 on 6.35mm and the other on 3.5mm. These are wired tip & sleeve to allow connection of regular stereo headphones (with audio on both ears) or a single ear piece. There is a volume control for adjusting level to 32-1000ohm impedance headphones.
Power is via a 9v PP3 battery (>18 hours use) or via external DC power. There is an on/off switch and a low power LED light.
Glensound belt pack cases are very rugged to withstand the rigours of portable use. There are loop anchor points on each of the front corners for shoulder straps or tying down, and there is a belt clip.
Portable single channel headphone amplifierTransformer balanced inputsInput gain controlBattery(PP3) or DC powerAdjustable headphone level control6.35mm and 3.5mm headphone socketsAudio input on XLR with loop throughOn/off switchLow battery lightBelt clip
Input: Transformer balanced
Input Impedance: >20k ohms
Input Range: -20dBu to +8dBu
Output Range: -20dBu to +10dBu
Frequency response: < -1dBu 50Hz - 16KHz
Noise: >-80dBu CCIR Un-waited Q Peak @ Line up
Max O/P: +19dBu into 10K ohms
Max O/P: +16dBu into 600 ohms
Distortion: <0.25% 100Hz - 1kHz
Distortion: <0.02% 1K - 10KHz
DC supply: 12-20v <26mA
Battery: 9v alkaline PP3
Battery life: >18 hours (Alkaline battery in normal conditions)
Low battery LED: at 6.0 volts
Optimal Headphone Impedance: 32-1000 ohm
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