The low frequency power amplifier is implemented using a single operational amplifier and a transistor output stage, providing high dynamic performance and very low nonlinear distortion. It is designed for amplification of low frequency audio signals and is suitable for various high-power audio applications.
The nominal output power is up to 100 W with a ±40 V supply. The input signal level is 0.750 V. The amplifier operates across the full audio frequency range from 20 Hz to 20 kHz.
The amplifier uses a dual DC power supply in the range of ±20 - ±40 V, with a maximum current consumption of up to 2 A.
The output transistors 2N3055 / KD503 and TIP42C / BD244 must be mounted on a heatsink using insulating pads. The recommended heatsink area is greater than 100 cm².
The printed circuit board dimensions are 90 x 65 mm.

Technical specifications:
Integrated circuit: 1 x operational amplifier.
Nominal output power: up to 100 W at ±40 V.
Input signal level: 0.750 V.
Nonlinear distortion: 0.003 %.
Frequency response: 20 - 20 000 Hz (±1 dB).
Supply voltage: ±20 - ±40 V DC.
Maximum current consumption: up to 2 A.
Output transistors: 2N3055 / KD503 and TIP42C / BD244.
PCB dimensions: 90 x 65 mm.

This product is a fully assembled module.
It is also available as a DIY assembly kit - Product code 1004 (separate product).