Ref Marantz 7 Latest Tube Pre-AMP preamplifier DIY KIT Audio Hifi 6Z5P+12AX7B | Электроника

• AC power supply: 110v-220V (240V) optional, global voltage standards.(pls mail us for the Voltage you want)

• 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

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 * 40coreprimary for the two groups 110v, series connection for 220v and Connect In Parallel 110v, secondary filament winding especially with double shield GNDgrounding 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 tubeRectifier.

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 * 6switch, can be changed to adjust the positioning to * 4, using AC power to 12AX7*3 parallel operation, 4 + 5Shortand 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.