Finished Ultra low distortion Class A preamplifier Refer to Sugden SDA-1 circuit

Refer to Sugden SDA-1 circuit design.Full DC circuit.JRC5534DD operational amplifier for core amplification.Using metal encapsulated transistor as output stage.No crosstalk between left and right channels.Minimalist design with extremely short signal circuits.With XLR balanced output.

Materials used:

1.All new components.
2.Using 4 twin field transistor inputs.
3.8 filter capacitor arrays.
4.ON LM317, LM337 precision voltage stabilization.
5.All aluminum precision CNC machining case.
6.50W custom transformer.
7.Soldered with American ALPHA solder wire.