A4 Full Symmetrical Double Differential High Power Stereo Amplifier 250W+250W

Description

Product Description:
The circuit structure is the most stable fully symmetric dual differential architecture
The output power tube is 4 pairs of ON original power tube NJW0281 0302
Protection circuit is about 2 Omron relay, each channel provides 10A output current
PCB board with double-sided immersion gold circuit board, so that lower current resistance, better electrical conductivity
The main filter is four imported SAMWHA gold-loaded capacitors, The total capacity of 40000UF
Beijing 718 copper foot resistance
U.S. ON A42 A92 small tube
All aluminum chassis, forced air cooling, greatly improving the thermal stability and cooling effect
600W pure copper transformer
Japan ALPS27 potentiometer
Parameters:
Output power: 250W + 250W (total 500W)
Power input: AC220V or AC110V
Frequency response: 10Hz-40KHz
Harmonic distortion: <0.005 10W / 8
Dimensions: 360X92X307mm
Matching speakers: 4-8 50-600W 5-15-inch KTV speakers, floor speakers, stage speakers
Package List:
1 × A4 Power Amplifier