MM/MC moving coil moving magnetic phono amplifier singing low noise vinyl phonograph discrete components class A circuit

The phono preamp circuit has 5 main characteristics:

Choose fully discrete components to build the circuit, easy to fine-tune the various data parameters.

It contains two types of phono amplifiers, MM and MC, which can be adapted to most users' vinyl record players on the market.

The main amplifier circuit is selected (FET) field effect transistor, which is convenient to reduce the sensitivity of the components to temperature changes and improve the distortion.

Choose pure class A circuit to form discrete component amplifier circuit, effectively reduce harmonic distortion and improve sound effect.

The phono equalization circuit does not use the feedback circuit of the conventional integrated IC circuit, but chooses the attenuation type, whichever is the natural characteristic of the timbre.

Some specifications:

Voltage gain (1KHz): MM: 40dB, MC: 60dB,

Distortion (1KHz, 500mV output): MM: 0.8%, MC: 1.2%,

Signal-to-noise ratio (1KHz, unweighted): MM: 82dB, MC: 72dB

Input impedance: MM: 30KΩ, MC: 470Ω

Cabinet size: width 130 depth 190 height 42 (mm);

Gross weight: 1kg;

Accessories: power adapter, applicable mains voltage: 110-220V.