This module allows you to assemble a simple and powerful monophonic low-frequency audio amplifier. It features compact dimensions, a minimal number of components, and supports a wide range of supply voltages and load resistances.

Specifications:

• Supply voltage (dual-polarity): ±12 – ±50 V

• Frequency range: 40 Hz – 20 kHz

• Maximum output power:
  • ±45 V, 8 Ω load – 140 W
  • ±30 V, 4 Ω load – 110 W

• Total harmonic distortion (THD):
  • Pout = 5 W, F = 1 kHz – 0.005%
  • Pout = 0.1…50 W, F = 20 Hz…20 kHz – <0.1%

• Nominal input voltage: 700 mV

Notes:

• The amplifier uses dual-polarity (±) power supply.

• The U1 IC must be mounted on a heatsink with a surface area of at least 600 cm² using thermal compound. Note that the IC case is electrically connected to the negative supply rail (V–) of the dual power supply.

• Heatsink is not included.