MARANTZ 7 hifi tube Preamplifier board DIY kits for amplifier speaker home audio and video system with 12AX7 or JJ ECC83S
Finished prodcut link :
Heda Moji, JP200 is a very classic front circuit, with Marantz 7 of the most pleasing voice. Marantz 7 well stacked the tone color, mellow vocals, dynamic outstanding, soft low frequency, for many years still play hifi enthusiast can not miss the selected objects
Parameter :
Input AC: 220V-0-220V 0-6.5V 0-10V
Output power: 10W 8ohm (ecc83)
8W 8ohm (12AX7)
Load range: 4ohm-8ohm
Frequency response: 20Hz--25KHz
Total harmonic distortion: 1% (1kHz)
Input sensitivity: 200mV--2000mV
Input impedance: 10K
Signal to noise ratio: 96dB±5dB
Tube link:
The connection of the transformer :
The aluminum chassis :
Packing listing:
A Marantz 7 kits * 1pc