Finished Marantz 7 m7 Tube Pre-amplifier


This is a finished tube amp. you can connect power to run it directly.



Parameters:

tube:6z5p X1 shuguang12ax7b X3

    AC power supply: 110v, 220v,240v optional global voltage standards, tell our choice during the order
    Input jack Standard: RCA Block (4 sets of input, one-output)
    Frequency Response: 10-26kHz (+/- 0.11dB)
    Voltage amplifier level: about 15 times
    Total Harmonic Distortion: 0.078%
    Signal to noise ratio: -99dB
    Chassis dimensions: 32 x 17 x 5cm, total height is about 10cm, recommande placed space of the machine, the minimum height requirement of not less than 18cm

 

Product Features

    Japanese original ALPS 16 type axial length of 15mm 100k double potentiometer,
    Switch is a Taiwan-invested factory production of 2*6, they can adjust the positioning mouth into four files to use.
    Use of all AC power supply in parallel to the three 12ax7
    0.8mm brushed stainless steel plates using CNC punching chassis,
    SNR makes up -99dB, extremely clean background.
    Power transformers using H360 0.5 core piece 76 * 40 secondary filament winding especially with double shield grounding line is  yellow-green line outlet
    A group of filament 3.15v * 2 for 3 12ax7 filament (12ax7 4 + 5 and 9 feet 6.3v)
    High Voltage 270v * 2 using the 6z5p bile Rectifier.
    Amplification circuit using scaffolding of welding, power use PCB
    Gold-plated RCA Block, 4 inputs, one set of outputs.
    Use WIMA MKP10 0.1uf capacitors, 0.39u ERO, IT 2.2uf etc. audio-specific capacitors.