Product Details:
The MA400 adopts Class AB design, delivering high output performance.
All aluminum alloy chassis, A large exposed heat sink quickly dissipates heat, ensuring stable operation of the amplifier.
24 carefully selected and paired high-quality transistors.
The current mirror input provides a more stable output across the entire dynamic range.
Two transformers independently supply power to the left and right channels.（Equipped with a shielding cover to eliminate electromagnetic interference）
Precise protection circuit, effectively protecting your audio equipment.
Integrated power circuit with delay relay to eliminate switch on/off impact.
Excellent circuit design and reasonable layout.
Parameter:
Input voltage: AC 115V or 230V (Optional)
Output Power: 300W +300W（8Ω class AB）600W +600W（4Ω ）
Size: W430mm*H220mm*D500mm (Excluding machine feet and various protruding positions)
Weight: About 33KG
Signal to noise ratio: 102db
Total harmonic distortion:<0.014%
Input impedance: 47K
Gain: 29.1db
Input sensitivity: 1.75V rms
Damping: 800 (8 Ω)
Maximum power consumption: 800W
Static power consumption: 120W
Package include:
MA400 amplifier X 1
Every amp has been professionally tested in perfect working order before shipping! 
The following is the evaluation of MA400 by a well-known sound connoisseur
