SMSL A50 Pro 2.1-Channel Amplifier

Name: SMSL A50 Pro 2.1-Channel Amplifier
SKU: A50 Pro
Price: 99.63 EUR
Availability: InStock

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Compact SMSL A50 Pro 2.1-channel amplifier with HDMI ARC, optical, USB, line-in, Bluetooth 5.0, stereo speaker output and a dedicated passive subwoofer channel.

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99,63 € incl. VAT

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Estimated delivery dates: May 27, 2026 - Jun 1, 2026

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SKU: A50 Pro Categories: Amplifiers, Bass Shakers / exciters, DIY Parts

SMSL 2.1-channel amplifier

Compact power for speakers, subwoofers and sim rigs.

The SMSL A50 Pro is a compact 2.1-channel amplifier with stereo speaker output and a dedicated passive subwoofer channel. It brings HDMI ARC, optical, USB, line-in and Bluetooth 5.0 into one small aluminum unit, with crossover control for cleaner tuning in desktop, home audio and compatible sim racing setups.

2 x 70W + 100W HDMI ARC Bluetooth 5.0

SMSL A50 Pro 2.1-Channel Amplifier rear panel - OCRacing

SMSL A50 Pro 2.1-Channel Amplifier accessories - OCRacing

2.1 output control

Drive a stereo pair and a passive sub channel from one small amp.

A50 Pro is built around a 2.1 output layout: left and right speaker channels plus a passive subwoofer output with independent volume control. Adjustable high-pass and low-pass crossover points help you split the work between main speakers, a subwoofer or compatible haptic projects without adding a separate processor.

012.1-channel layout

Stereo speaker outputs with a dedicated passive subwoofer channel for compact systems.

02Crossover tuning

High-pass and low-pass filters each offer 10 selectable crossover points.

03Sub level control

Subwoofer output volume can be adjusted independently from the main channels.

04Infineon amplifier chips

Efficient digital amplification keeps the unit small while still delivering serious output.

SMSL A50 Pro HDMI ARC optical USB Bluetooth inputs - OCRacing

More ways to connect

TV, PC, streamer or phone: one amplifier can cover them.

Use HDMI ARC for a TV setup, USB for a computer, optical for digital sources, line-in for analog audio or Bluetooth 5.0 for wireless playback. Optical input supports up to 24bit / 192kHz signals, while the front display and IR remote keep daily control simple.

HDMI ARC

Audio return channel for compatible TV setups.

Bluetooth 5.0

Wireless playback with modern low-power Bluetooth support.

USB input

Connect a PC or compact source directly.

Optical + line-in

Digital optical and analog line input for flexible setups.

Setup flow

Tune the system around your speakers, subwoofer or shaker load.

1Choose the source

Connect HDMI ARC, optical, USB, line-in or Bluetooth depending on the system you are building.

2Wire the outputs

Connect passive speakers and, if needed, a compatible passive subwoofer or haptic load within the amplifier rating.

3Set crossover and level

Use the high/low-pass settings and independent sub volume to balance the system.

SMSL A50 Pro high low pass filter - OCRacing

High / low-pass filters

Selectable crossover points let you keep low frequencies away from main speakers or direct them into the sub channel.

SMSL A50 Pro IR remote control - OCRacing

Remote control included

The included IR remote gives quick access to volume, mute, input changes and menu navigation.

Package contents

Everything needed to start with the amplifier is in the box.

01A50 Pro amplifier

Compact black aluminum 2.1-channel amplifier unit.

02Cables included

USB-A to USB-C cable and HDMI cable are included.

03Wireless antenna

Bluetooth antenna for wireless playback support.

04Power and control

Power adapter and IR remote control are part of the package.

Technical overview

Small chassis, serious 2.1 amplifier specification.

Can it be used for sim racing haptics?

It can be used in compatible passive speaker, subwoofer or haptic projects, but always match impedance, wiring and power requirements before connecting bass shakers or other loads.

What makes it useful for a TV or desktop setup?

HDMI ARC, USB, optical, line-in and Bluetooth make it flexible enough to sit between a TV, PC, monitor area or compact cockpit audio setup.

Product	SMSL A50 Pro 2.1-Channel Amplifier
Article number	A50 PRO
EAN	6970141859109
Rated output power	2 x 70W @ 4 ohm + 100W @ 2 ohm passive subwoofer output
Speaker output channels	2.1
Signal-to-noise ratio	102 dB
Distortion	0.013%
Frequency response	20Hz – 20kHz
Input sensitivity	-10dB
Inputs	HDMI ARC, optical, USB, line-in, Bluetooth 5.0
Optical input	Up to 24bit / 192kHz
Power requirements	12-24V DC
Power consumption	36W
Standby power consumption	< 0.5W
Dimensions	134 x 33 x 103 mm