Product Details:
The BY390 amplifier has a rich, rounded, neutral and warm sound, with a strong electronic tube flavor, which is deeply loved by Audiophiles.
All aluminum alloy chassis, surface treated with oxidation and wire drawing.
Fully symmetrical design, the overall layout conforms to electrical characteristics.
Two 500W pure copper ring transformers independently supply power to the left and right channels.
8 pieces of 10000uf 63V ELNA filter capacitors.
Equipped with soft start protection function, effectively reducing the impact of power on/off on the amplifier Extend the lifespan of the amplifier.
Configure EMI circuit to effectively isolate the DC component in the power input, making the sound purer.
Built in speaker protection circuit, effectively protecting your audio equipment.
Each channel uses 4 pairs of Japanese Toshiba 2SC5200+2SA1943 transistors.
Dual VU meter design, dynamic and elegant
Parameter:
Input voltage: AC 115V or 230V (Optional)
Output Power: 30W +30W（8Ω class A）
Size: W430mm*H130mm*D315mm (Excluding machine feet and various protruding positions)
Weight: About 19KG
Signal to noise ratio: 120db
Separation degree: 99db
Frequency response: 20Hz-20KHz
Package include:
BY390 amplifier X 1 (NO IEC type mains power cable included)
Every amp has been professionally tested in perfect working order before shipping! 
