shengya-audio







CV-1 Tube Fully Balanced Preamplifier
CV-1 Tube Fully Balanced Preamplifier
tube stereo preamplifier

Frequency response: 20Hz-20kHz ± 0.5dB

Rated output voltage: 2V (balanced)

Maximum output voltage: 30V

Harmonic distortion: ≤0.1% (1kHz 2V)

Input sensitivity: 400mV (balanced)

Signal to noise ratio: 85dB (wideband)

Input impedance: 47kΩ

Dimensions (WxHxD): 446 x 142 x 415 (mm)

Weight: 11.5kg



• The voltage amplifier stage is served by the tube 12AU7, and the linear SRPP circuit drives the transistor current amplifier by 12AU7;

• Dual mono fully balanced amplifier design, two completely independent channels; dynamic in order to reduce crosstalk, each with one channel each R type power transformer, the transformer shield box and a special power supply to eliminate noise;

• Using 9 12AX7 and 12AU7 audio dedicated electronic tubes and supporting fully gold-plated tube sockets, the sound performance is sweet and natural, and the dynamics are huge;

• The electronic tube class A output buffer with up to 30V undistorted output voltage can easily match any post-stage power amplifier;

• Volume control The amplifier is a large-scale quadruple high-precision potentiometer made in Japan, with small channel error, long life, and beautiful sound performance;

• A large number of audio components are used in the machine, such as the use of MKP audio special film electrodeless capacitors, high-precision low-noise resistors, FET servo-type high-voltage stabilized power supply, so that the sound quality reaches a very high level

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