Astrum 2.1CH Multimedia Speaker with Subwoofer, USB Powered – SM020

Upgrade your desktop audio with the Astrum SM020, a compact 2.1CH multimedia speaker system designed to deliver clear stereo sound with balanced bass in a space-saving setup.

Whether you’re working, studying, watching videos, or listening to music, the SM020 enhances your computer’s sound with clean stereo audio supported by a dedicated subwoofer for deeper bass. Powered directly through USB, the system offers a simple plug-and-play setup without the need for bulky external power adapters.

Built with wooden satellite speakers for improved acoustic clarity, the SM020 produces richer sound than typical plastic desktop speakers. The system connects through a 3.5mm AUX input, making it compatible with PCs, laptops, and other devices with a standard audio output.

Based on customer feedback, the latest version now includes longer satellite speaker cables for easier desk placement and a power on/off function integrated with the rotary volume control, providing more convenient control of your audio setup.

Compact, reliable, and easy to use, the SM020 is designed to deliver better sound for everyday work, study, and entertainmen

11W RMS Audio Output – Clear and Balanced Sound

With 11W RMS output, the SM020 delivers balanced stereo sound suitable for music, videos, gaming, and everyday multimedia use.

Dedicated Subwoofer – Enhanced Bass Performance

The integrated subwoofer adds depth and low-frequency impact, giving music and media fuller sound compared to standard desktop speakers.

USB-Powered Design – Simple Setup

The SM020 draws power directly from a USB port, eliminating the need for external adapters and keeping your desk setup clean and simple.

AUX Connectivity – Broad Device Compatibility

A 3.5mm AUX connection allows the speakers to connect easily to PCs, laptops, and other devices with a standard audio output.

Rotary Volume & Power Control – Easy Operation

The rotary control on the subwoofer allows you to adjust volume easily while also functioning as the power on/off switch for convenient control.

Improved Satellite Cable Length – Flexible Desk Setup

Based on customer feedback, the satellite speakers now include longer cables, allowing more flexible placement across wider desks and workstations.

Compact Desktop Design

Designed to fit neatly on desks or workstations, the SM020 provides powerful sound while maintaining a compact footprint that saves space.

Ideal For

• Desktop PCs and laptop setups
• Home offices and study environments
• Watching videos and streaming content
• Music playback during work or study
• Compact desk setups needing better sound

Technical Specifications

• Model: SM020
• Output Power: 11W RMS
• Driver Unit: 78mm subwoofer + 52mm x 2 satellite speakers
• Frequency Response: 70Hz – 18KHz
• Impedance: 4 Bass
• S/N Ratio: 75dB
• Distortion Ratio: 1%
• Power Switch: Rotary volume and power on/off
• Connectivity: 3.5mm AUX Audio input
• Subwoofer Dimensions: 200 x 120 x 145mm
• Satellite Dimensions: 62 x 105 x 65mm
• Weight: 1kg (approx.)

Important Notes

• Designed primarily for PCs and laptops with a 3.5mm audio output
• Powered via USB connection
• Ideal for desktop listening environmentsAbout Astrum

  Astrum is a dedicated global consumer technology brand focused on practical, well-engineered products for everyday life.

  The SM020 reflects that commitment – offering premium audio quality, convenience, and a compact design that fits perfectly into your everyday setup.

  What’s in the box

  1 × Astrum SM020 Subwoofer

  2 x Satellite Speakers

  1 x AUX Cable

  1 x User Manual