Dual-Channel L12-2 Power Amplifier Board 120W +-55V without Heatsink VER4.2

Description:                                                                    

L12-2 is a rear stage power amplifier.

This L12-2 is an ultra-low distortion amplifier designed primarily for monitoring applications. Minimum distortion does not necessarily mean it is the best-sounding amplifier.

This L12-2 is more suitable for professional users who demand extremely high accuracy of audio details. Please note that its sound signature is relatively cold and slightly hard.

Circuit diagram is NOT provided. 

ONLY FOR PROFESSIONALS

Specifications:

Power supply: within ±55V DC.

Power output: 120W into 8Ω @ ±50V DC 200W into 4Ω @ ±50V DC

THD < 0.0005% @ 1kHz, 10W Slew Rate (SR): 35V/μs Damping factor > 200 (8Ω load)

Input sensitivity: 1.6V for 120W output into 8Ω

Frequency response: 15Hz–50kHz (-3dB) 20Hz ~ 20kHz: -0.02dB

Quiescent current: 80mA

DC supply voltage range: ±12V to ±55V dual rail

Voltage gain: 31 times

Two types of power transistors are available: Sanken 100W power transistor and onsemi 150W power transistor.

This listing includes both pre-assembled finished boards and component kits. Soldering and assembly are required for the component kits.

Test data:

THD+N measurement with input signal

At an input voltage of 700mV, the output voltage is approx. 23Vpp, with an 8Ω resistive load.

The test uses an 8Ω, 1000W power resistor.

Wiring Connection:

As the pictures showing

Package:

1x Dual Channel L12-2 Audio Power Amplifier Boards Finished Boards or Kits