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Category: Amplifier

SMSL PA40 - High Performance Digital Stereo Amplifier

Key Features

Powerful Class-D Amplification

  • High-efficiency Class-D stereo power amplifier design

  • Delivers strong output suitable for driving a wide range of passive speakers

  • Ideal for desktop, bookshelf, and small to medium room audio systems

Clean and Accurate Sound

  • Low distortion performance for clear, detailed audio reproduction

  • High signal-to-noise ratio ensures a clean background and dynamic sound

  • Designed for neutral, transparent amplification

Simple and Focused Design

  • Pure power amplifier architecture, intended for use with external DACs or preamps

  • No unnecessary processing, ensuring a direct and clean signal path

Connectivity and Control

  • RCA stereo input for easy integration with DACs, streamers, or preamplifiers

  • High-quality speaker binding posts for secure speaker connections

  • Supplied remote control for convenient volume adjustment

Build Quality and Reliability

  • Compact aluminum chassis with a durable, premium finish

  • Efficient design generates low heat for reliable long-term operation

  • Built-in protection circuits against overheating and electrical faults

Description

SMSL PA40 – High Performance Digital Stereo Amplifier

Clean & Powerful Output
Delivers dynamic, distortion-free sound with ample headroom for bookshelf and desktop speakers.

Compact & Minimal Design
A solid aluminum chassis with an elegant finish makes it perfect for modern home audio setups.

Multiple Input Options
Equipped with RCA and AUX inputs for flexible connectivity with your audio sources.

High Efficiency Class D Amplification
Ensures energy-efficient performance without sacrificing sound quality.

Ideal for Desktop & Small Room Use
Perfect choice for enhancing your desktop, study, or bedroom listening setup.

 

Specification Details
Brand SMSL
Model PA40
Type Digital Stereo Amplifier
Output Power 2 x 40W @ 4Ω / 2 x 25W @ 8Ω
Inputs USB, RCA, Bluetooth
Outputs Speaker Terminals
Bluetooth Version Bluetooth 5.0 with aptX
Frequency Response 20Hz – 20kHz (±0.5dB)
THD + N < 0.005%
Signal-to-Noise Ratio ≥ 100dB
Chassis Aluminum Alloy CNC
Dimensions Approx. 150 x 32 x 110 mm
Weight Approx. 0.6 kg
Warranty 1 Year (Manufacturer Warranty)

 

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