This preamp is base on famous JADIS Circuit, Enlarged part with a three signal amplifier, each stage uses two 12AX7, a total of six 12AX7. Power supply using 6Z4 rectifier, 12B4A adjustment, 12AT7 voltage comparator. Signal amplification part of all imports of Russia's new tube EH. Power part of the 6Z4 is the dawn of a license, 12B4A imported second-hand tube, 12AT7 once again using the EH tubes imported from Russia.
 
Parameters:

Frequency response: 1 Hz-80 kHz-1dB

SNR: 90 dB

Input impedance: 100k

Harmonic distortion: 0.05% (70 Hz / 7 kHz 4:1)

The case size:430mm wide × 330mm depth × 100mm high

Input: 4 RCA inputs (CD input, DAC input, AUX, TUNER input)

Output: a set of RCA analog output

Weight: about 9KG

Warranty: 1 year (tube not warranty)

Input votlage:AC110V or AC220V available.