The circuit of this amplifier has 5 main features.
1. The choice of fully discrete components to build the circuit makes it easy to fine-tune the various data parameters.
2. Both MM and MC phono amplification are included, making it possible to adapt it to the majority of vinyl phono types currently on the market.
3. The main amplification circuit is a (FET) field effect tube, which reduces the sensitivity of the components to temperature changes and improves distortion.
4. A pure Class A circuit is chosen to form the discrete component amplifier circuit, which effectively reduces harmonic distortion and improves the sound tone.
5. Instead of the conventional feedback type of integrated IC circuit, the phono equaliser circuit was chosen to be attenuated for its natural sounding characteristics.
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Specification
Voltage gain (at 1KHz): MM: 40dB, MC: 60dB,.
Distortion (at 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
Size: W130 D190 H42 (mm).
Weight: 1kg.
Accessories: power adapter, applicable mains voltage: 110-220V.
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