Features:
The PCB board adopts immersion gold board using military technology, making welding easier, copper is the thickest 2/2oz, improving signal current transmission performance.
Imported  LM317 / LM337 voltage high current low resistance line, combined with the highest level of  audio capacitors, form stable voltage pre-filter power supply.

UPC1237 speaker protect circuit, genuine relays, power-on delay of about 3.5 seconds pick-up, after pick-up, there will be music sounded, immediately disconnect immediately when shutdown, no impact sound. DC ± 1.5V trigger protection to disconnect the output circuit and protect your expensive horn.

Strict separation of the two channel ground wire, plays a crucial role in improving the separation of signals.
Large current bridge rectifiers, continuous work is more stable.

Specifications:
Power supply voltage: Allowable range dual 15V to dual28V (refer to transformer output voltage, such as 25-0-25)
Board size: 155 x 80 x 50mm/6.10 x 3.15 x 1.97inch
Load impedance: 4-8Ω
Output power: Max 68W+68W

Package Included:
1  x LM3886 Power Amplifier Board

2 x screw
4 x Hex bolt