Details:

Based on the famous Sugden A21 pure class A amplifier circuit.

Stereo 21W pure class A single-ended power amplifier board

With OTL speaker protect

Transformer: 300W toroid

Output power: 21W+21W

Maximum undistorted output power: 24.5w/8 ohms per channel;

Cold engine noise floor: -88.32 Warm engine noise floor -90.49:

Quiescent current: 800mA~1000mA

Debugging method: Before power on, adjust the potentiometer clockwise to the end. After the power-on test sound is normal, turn it counterclockwise and adjust the voltage across the 1-ohm resistor to 800mV-1V.

Use Rubycon 50V/10000uF main capacitor imported from Japan.

Use new Sanken transistor C3284.

Work voltage：AC115V and AC230V optional

Net weight：10.5kg

Size:360x120x275mm (expect Knob and RCA)

Full aluminum chassis

Alps 27 volume potentiometer

CMC816 RCA

Package included：

Finished amplifier x 1

Not included any cables ！

Custom Duties & Taxes

1. Import duties, taxes, and charges are not included in the item price or postage cost. These charges are the buyer's responsibility.

2. Avoiding some unnecessary trouble, please check with your country's customs office to inform us what we should declare its value before shipping.