Product Lineup

Premium speaker units for various applications

Standard Speaker Units

Standard Speakers

Standard Speaker Units

Highly reliable standard specification drivers widely applied to various commercial and general-purpose systems. They boast consistent quality and excellent durability.

Available Sizes: 2" ~ 8"

  • Stable quality control optimized for mass production
  • Standard parameters easily applicable to general enclosures
  • Excellent price-to-performance ratio
Hi-Fi Speaker Units

Hi-Fi Audio

Hi-Fi Speaker Units

Ideal for high-end home audio, engineered with low THD and flat frequency responses to deliver the pure emotion of original sound.

Available Sizes: 4" ~ 12"

  • Custom coated paper and Kevlar cone options
  • High-efficiency Neodymium / Ferrite motor systems
  • Excellent heat dissipation through high-density voice coils
Instrument Amplifiers

Instrument Amplifiers

Instrument Amplifiers

Custom-tuned units that perfectly reproduce the unique harmonics and analog tones of instruments like guitars and basses. They accurately output the sound intended by the musician.

Available Sizes: 5" ~ 15"

  • Custom paper cone and edge design exclusively for instrument amps
  • Fast transient response
  • Wide tuning support from vintage to modern high-gain
Pro Audio Units

Professional Audio

Pro Audio Units

High-output, durable units designed to deliver consistent performance in the harshest stage environments.

Available Sizes: 10" ~ 18"

  • Robust suspensions capable of handling peak power outputs
  • Enhanced power handling through large-diameter voice coils
  • Weather-resistant designs against temperature and humidity
Ceiling and In-Wall Speakers

Ceiling & In-Wall

Ceiling & In-Wall Speakers

High-quality BGM and flush-mount speaker solutions that seamlessly blend into architectural environments. They provide rich sound that fills the entire space while remaining visually unobtrusive.

Available Sizes: 3" ~ 8"

  • Easy-mount structures available for simple installation
  • Moisture and dust-resistant grille designs
  • Clear mid-to-high frequencies optimized for BGM
Custom & Special Purpose Units

Custom Solutions

Custom Solutions

To complete your brand's signature sound, our R&D center provides 1:1 tailored acoustic designs. Even completely new speaker form factors become a reality with SL Acoustic.

All Sizes (1" ~ 21")

  • Full customization of T/S Parameters
  • Structural designs for special environments (marine, etc.)
  • Rapid prototyping and anechoic chamber testing

Quality & Reliability

Strict Quality Verification for Perfection

Every speaker unit from SL Acoustic undergoes rigorous testing before mass production and final shipment. Our uncompromising QC process aiming for zero defects is why global audio brands trust us.

1. Anechoic Chamber Testing

We precisely measure frequency response (FR) and distortion (THD) in our in-house anechoic chamber.

2. Environmental Testing

Using climate chambers, we simulate extreme conditions to verify consistent durability in any climate.

3. Life & Aging Testing

We strictly inspect unit durability by driving them continuously at maximum power for extended periods.

4. 100% Pre-shipment Inspection

Beyond sampling, every single produced unit undergoes a 100% acoustic sweep test before final shipment.