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Amplifiers & DAC

Studio Six-Black

  • Uncompromising quality in build and design
  • Reference amplification
  • Only vacuum tubes with established reputations
  • Pure power
  • Designed for headphones
  • Ideal amp for shared listening


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Product Details

Technical Features

The Studio Six is a Class-A single-ended triode (set) circuit design with zero feedback and 100% tube amplification, designed for resolution of fine musical details, expansive soundstage presentation, and lush tonal quality. Only vacuum tubes with established reputations for sonic virtue are in this design. Selecting tubes that are now and will continue to be available in the global audio marketplace. Featuring vacuum tube rectification, filtering for the left and right input stages, including two glow discharge regulator tubes, and separate multi-stage filtering for each left and right channel output tube, the power supply is a 'virtual dual mono block' design. The Studio Six is the ideal amp for shared listening sessions, driving many pairs of headphones with no sacrifice to fidelity, the proprietary output stage accomodates a wide range of headphone impedance from 8 - 600 ohms, with ease.


A timeless design built to last a lifetime, the Studio Six has uncompromising quality in build and design. Featuring conservative part ratings and circuit design, this obsolescence-proof piece of audio equipment translates into effortless, under-stressed operation, extended tube life and long-term amplifier reliability.




Headphone impedance compatibility range: 

8 Ohms to 600 Ohms 

Maximum rated output power:

1,000 milliwatts into 8 to 32 Ohms

Amplifier input impedance:


Amplifier input Voltage for full-rated output voltage into various headphone impedances:

1.00V RMS  input for 4.0V RMS output into   16 Ohms

1.30V RMS  input for 5.7V RMS output into   32 Ohms

1.70V RMS  input for 7.5V RMS output into   75 Ohms

1.85V RMS  input for 8.3V RMS output into 150 Ohms

1.70V RMS  input for 8.2V RMS output into 300 Ohms

1.65V RMS  input for 8.1V RMS output into 600 Ohms

THD+N (1kHz input) at 1V RMS output into stated load impedances:

32 Ohms: 0.26%

150 Ohms: 0.12%

THD+N (1kHz input) at 250 milliwatts output into stated impedances:

 32 Ohms: 1.0%

150 Ohms: 2.0%

Frequency Response -3dB (Referenced to 1kHz, 250 milliwatts output) into stated impedances:

 32 Ohms:   6.0Hz to 39kHz

150 Ohms: 16.5Hz to 36kHz

Frequency Response -1dB at full-rated (2.83V RMS1,000 milliwatt output into 8 Ohms:

15Hz to 20kHz

 S/N Ratio:

78dB (unweighted) below full 2.83V RMS output into 8 Ohms


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