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Hammertone Audio is the Canadian Distributor of Allnic Electronics and the Global Distributor of ZL Technology

HPA-3000 GT



The HPA-3000 GT is Allnic Audio’s stereo headphone amplifier, with an output transformer coupled. The HPA-3000 GT has a voltage gain of +28dB, and a maximum output of 3 watts. It works best with headphones having an impedance of from 30 to 600 ohms.

Key Features

The HPA-3000 GT has the following features:

  • High-quality, NOS tubes
  • Pure Class A operation
  • As are all Allnic Audio products, the HPA-3000 GT is fully RoHS (EU Reduction of Hazardous Substances regulation) compliant in construction and materials
  • Headphone output: The HPA-3000 GT is equipped with two(2) headphone outputs ‘jack’ and two(2) XLR for(4) pin outputs. Each for low and high impedance
  • Pre output: The HPA-3000 GT is equipped with one(1) pair of RCA pre outputs, whose impedance is around 10 ohms, this extremely low value means very powerful driving capability to next amplifier with the widest frequency ranges
  • Volume control: The HPA-3000 GT’s volume control is the large knob in the center of front panel. It rotates clockwise (gain increased) and counterclockwise (gain reduced)

Technical Specifications

  • Inputs: One (1) pair unbalanced (RCA), One (1) pair balanced (XLR)
  • Headphone Output: Two (2) one-quarter inch (1/4”), Two (2) XLR
  • Pre-out: Available
  • Frequency Response: 20Hz ~ 20KHz (±0.3db)
  • Voltage Gain: +28dB
  • Optimum Headphone Impedance: Low under 50 ohms, High under 600 ohms
  • Output Wattage: Three (3) watts
  • Maximum Input Voltage: Ten (10) volts RMS
  • THD(Total Harmonic Distortion): Less than 0.03% (1KHz, Out put 1V)
  • S/ N Ratio: -63db (CCIR, 1KHz)
  • Power Consumption: 48 Watts
  • Tubes: 6EM7 X 2
  • Fuse: AC 2A, 250V
  • Dimensions: 240mm x 330mm x 175mm (W x D x H)
  • Weight: Unpacked: 10 kg

Product Support

Download User Manual


HPA-3000 GT Audio(S.Korea’s magazine) review

HPA-3000 Fullrange(S.Korea’s webzine) review

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