Finished C17 Pure Class A Preamplifier Fully Symmetrical HiFi Pre-amp Based on DOA33 Circuit New

Product Details:

① Classic DOA33 Class A module circuit.

② Fully symmetric A type circuit, class A quiescent current with voltage level 10mA and output stage 20mA.

③ The use of DC ± 28V high voltage power supply, large dynamic, low internal resistance of A parallel power supply, constitute the core of good sound.

④ All-aluminum shell

Specifications:

• Core components: 6 new BC electrolysis, 10 WIMA

• Magnification: 11 times

• Transformer power: 100w shielded high-end Nippon Steel transformer

• Potentiometer: ALPS27 type 100kA

• Signal to noise ratio: 108dB

• Distortion: <0.01%

• Weight: about 7KG

• Operating voltage: AC230V or AC115V

Package Included:

1 × Finished preamplifier