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PA40

Name: SMSL PA40
Brand: SMSL

SMSL

2025 – Present

AmplifiersPower Amplifiers

Estimated price (community-sourced)

$139

About the PA40

The SMSL PA40 is a compact stereo power amplifier built around the Infineon MA5332/MA5332MS Class D amplifier chip and an NJU7391A electronic volume control. It is positioned as an entry-level amplifier with a built-in power supply, low noise, low distortion, and remote-controlled operation. It accepts RCA input only and is designed to drive passive speakers directly, with built-in EQ, bass/treble adjustment, gain selection, and protection circuitry for overheating, overcurrent, and undervoltage.

Specifications

Key Specifications

Power: 85W

Full structured specifications are available to members.

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