SNM International Limited
  Amplifier 擴大機
  Cable 線材
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Amplifier 擴大機
HQ-1 耳機擴大機
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Product Info

You invest in the best headphone your heart desires and your budget allows. You need to maximize the return. It’s time to unleash the full potential of your headphone. Welcome to the Headquarters: the KingRex HQ-01, our inaugural headphone amp will help you realize your ambition in many ways.

HQ-1 is in Class A MOSFET design is general-purpose desktop headphone amplifier. Featuring a 2-box design, one is housing the power supply and the other enclosing the amplification circuitry.

The output circuits are Toshiba A970/C2240 for first stage amplification and output stage by Hitachi MOSFET 2SK214.Power supply is a linear regulated type which has a total of 25,100uF of filtering capacitors. This ensures smooth DC power as well as clean source for the sensitive amplification circuits.

What are the results from famous components and working so hard in tuning?

You could enjoy transparency, spontaneity, palpability, delicacy and full frequency which HQ-1 brings.


HQ-1 Headphone amplifier
Gain: 18.5dB
Input Offset Current: 15K ohms
Output Offset Current: 8ohms
Power output: 100mW @ 300ohm
170mW @ 150ohm

570mW @ 30 ohm
Frequency response: 20Hz(-0.7dB)~80KHz(+0.1dB)
Dynamic range: 110dB
Noise Ratio: 115dB
Total distortion + Noise Signal: 0.005% at 2Vrms Output

Channel Separation >92dB at 1Khz
>76dB at 10Khz
Audio terminal: Neutrik Headphone jack (6.35mm) with gold plated contacts
RCA connectors with gold plate contacts
Power consumption: Less than 10W

HQ-1 PSU (linear power supply unit)
Transformer: 45W toroidal type
DC output: 18V/2.5A
Dimension: 185x138x45mm
Aluminum panel: Red / Black