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  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
1/1
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit

PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit

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  • input voltage:
    AC110V
    AC220V
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  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
1/1
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • PRT05A Finished 12AX7 HIFI DIY stereo Tube preamplifier base on conrad-johnson CL preamp circuit
  • Description
Product Details:

 ZERO-ZONE PRT05A preamp is reference the famous conrad-johnson CL Circuit , designed with double-single independent design, physically separated 100% left and right channels, independent hierarchical grounding.
.
● The preamp are using 4pcs 12AX7 Tubes.
● 30VA Oxygen free copper R-core transformer.
● Origianl Japan ALPS Type 27 Potentiometer.
● Taiwan high quality frosted Pure copper RCA  terminals.
● ALPS27 potentiometer, noiseless, well-balanced, and durable.
● Aluminum chassis + stainless steel switch.
● High voltage stabilization adopts V-MOS, which is more suitable for electronic tubes. 

Parameters:

● Model: PRT05A 
● Input voltage: AC110V/220V (switchable) 
● Size: 240 * 90 * 320mm （Excluding protruding parts）
● Weight: about 3.5kg  
● Gain: about 10 times
● Input impedance:47K  
● SNR: 90dB    
● Frequency response: 10Hz--30KHz  
●   Distortion: 1% ●


List:

1 x PRT05A preamplifier  （To ensure transportation safety, the power input line is not included by default)

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19157426618
BRZhifiaudio@outlook.com
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