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  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
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  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier

Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier

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5.0 (1 Reviews)
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$155.00 $142.60
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  • input voltage:
    AC110V
    AC220V
  • type:
    without electron tube
    with electron tube
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  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
1/1
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Refer to the British QUDA22 circuit HIFI DIY stereo direct-coupled electron tube preamplifier
  • Description

Product Details:


The QUDA22 tube preamp produces a clear and charming sound, with a rich tube flavor and high cost-effectiveness

This preamp circuit comes in two versions, one with 6Z4 rectifier and one with 6X4 rectifier. To switch between the two versions, simply manually change the two red jumpers.

Adopting Taiwan-made pure copper RCA, Japanese ALPS27 type volume potentiometer, oxygen-free copper signal cable, and copper pin resistor.

Double-sided PCB with HASL (Hot Air Solder Leveling) process

All-aluminum alloy chassis, solid aluminum knob

The noise output is less than 1mV, making it almost inaudible. The signal-to-noise ratio is high

The QUDA22 preamp, equipped with a delay output function, effectively prevents impact on power amplifiers and audio systems.

Parameter:

Distortion: 0.00792%

Frequency response: 5Hz-30KHz (-1db)

Sensitivity: 300mV

Minimum input: 1mV

Maximum output: 22V

Magnification: 10.7x

Weight: 4.6kg

Size:W240*L330*H90mm

List:

QUDA22 tube preamplifier x 1

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