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Nobsound12AX7+6Z5P Vacuum Tube Preamp HiFi Stereo Pre-Amplifier Marantz circuit

DJ198
AC power supply: 110v-220V (240V) optional
Input jack Standard: RCA Block (4 sets of input, one-output)
Frequency Response: 10-26kHz (+/- 0.11dB)   about 15 times the voltage amplifier
Total Harmonic Distortion: 0.078%
Signal to noise ratio: 99dB
Price:
USD
$179.00
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  • Color:
    Integrated Unit DIY KIT
Quantity:
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(50 available)
  • Description
  • Reviews
Main Parameter: 
  • AC power supply: 110v-220V (240V) optional
  • Input jack Standard: RCA Block (4 sets of input, one-output)
  • Frequency Response: 10-26kHz (+/- 0.11dB)   about 15 times the voltage amplifier
  • Total Harmonic Distortion: 0.078%
  • Signal to noise ratio: 99dB

 
Product Features 

1, using the 0.8mm brushed stainless steel plate CNC punching chassis, making SNR up 99dB, the background is extremely clean.

2, power transformers using H360 0.5 piece 76 * 40 core, primary for the two groups 110v, series connection for 220v and Connect In Parallel 110v, secondary filament winding especially with double shield GND,grounding line is yellow-green line outlet

3, A group of filament 3.15v * 2 for three of 12AX7 filament supply (12ax7 4+5 and 9pin 6.3v)

4, high-voltage 270v * 2 using the 6z5p tube Rectifier.

5, amplification circuit using scaffolding of welding, power source with the PCB

6, gold-plated RCA Block, 4 inputs, one set of outputs.

7, using WIMA MKP10 0.1uf capacitors, 0.39u ERO, IT 2.2uf, capacitors, etc. audio-specific capacitors.

8, Japanese original ALPS 16 Type 15mm 100k Duplex potentiometer, Taiwan-funded factory production 2 * 6 switch, can be changed to adjust the positioning to * 4, using AC power to 12AX7*3 parallel operation, 4 + 5 Short and 9-pin to 3.15v*2 =6.3v 

9, The dimension of the chassis 32 * 17 * 5cm, total height of about 10cm, housing space for the machine can not be less than the minimum height 18cm.
 
Package include:
  • 1PC tube preamp
  • 1PC power cord
Average rating: 5.0
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