SX SeriesInstalled SoundLive Sound


2 x 10" Passive Slimline Subwoofer

SX210 Slimline, Direct Radiating Subwoofer
Where to Buy or Rent

The SX210 is a slimline dual-driver subwoofer designed for situations that call for a visually unobtrusive enclosure. It can be used singly, stacked or flown via integral M8 inserts and its ultra-compact size makes it ideal for applications where space is limited. It features dual 10” (250mm)/2” (50mm) voice coil drivers and generously sized low frequency ports for reduced air noise.


  • Slimline direct-radiator subwoofer
  • 2 x 10” (250mm) drivers with 2” (50mm) voice coils
  • Large ports for reduced air noise
  • Perforated steel grille
  • 4Ω nominal impedance
  • M8 flying inserts


  • Portable sound reinforcement
  • Live music clubs
  • Bars and restaurants
  • Nightclubs
  • Corporate AV events and conferences
  • Weddings and parties
  • Secondary stages at festivals
  • HoW, leisure centres and retail outlets

The SX210 enclosure is constructed from plywood and finished in black textured paint as standard, with white and RAL colour finish-es available to special order. An impact-resistant perforated steel grille protects the drivers, and the enclosure has twin ergonomic handles at the rear for easy handling. Rubber feet on the base resist movement and align with recesses in the top surface to assist stacking.

When used with full-range systems, crossover and EQ functions can be performed by the DX0.4, DX0.6 or DX4.0 system controller. The recommended amplifier is the VIA2502, or VIA5002 or VIA5004 depending upon the size of the overall system.

User guide Brochure Datasheet Settings [v1.9]
TYPESlimline dual, direct radiating subwoofer
FREQUENCY RESPONSE (5)50Hz-150Hz ± 3dB, -10dB @ 42Hz
DRIVER2 x 10” (250mm)/2” (50mm) voice coil, long excursion, ferrite magnet
RATED POWER (2)500W AES, 2000W peak
MAXIMUM SPL (9)127dB continuous, 133dB peak (half space)
DISPERSION (-6dB)Omnidirectional
CROSSOVER80-120Hz active
ENCLOSUREBirch/poplar ply
FINISHBlack textured paint
PROTECTIVE GRILLEBlack perforated steel
FITTINGS16 x M8 inserts, 2 x bar handles
DIMENSIONS(W) 718mm x (H) 295mm x (D) 465mm
(W) 28.3ins x (H) 11.4ins x (D) 18.3ins
WEIGHT20kg (44.1lbs)
Architectural Specs
Martin Audio SX210

The loudspeaker shall be a slimline subwoofer consisting of two 10” reflex-loaded, long-excursion, low frequency transducers.

The on-axis frequency response shall be 50Hz-150kHz +/- 3dB and the loudspeaker shall produce a maximum SPL of 133dB peak calculated at 1 metre. Power handling shall be 500W AES, 2000W peak. Rated impedance shall be 4 ohms. The rear connector panel shall be fitted with two NL4 type connectors and the loudspeaker shall be operated in conjunction with a dedicated electronic controller.

The enclosure shall be made from plywood and finished with a black textured paint. Optional white and RAL colour finishes shall be available to special order. The enclosure shall be fitted with M8 threaded inserts for eyebolt suspension and the drivers shall be protected by a perforated steel grille.

Dimensions (W x H x D) including feet shall be 718mm x 295mm x 465mm (28.3in x 11.4in x 18.3in). Weight shall be 20kg (44.1lbs).

The loudspeaker shall be the Martin Audio SX210.

Recommended Amplifier
VIA2502 Product Shot
VIA2502. Two-Channel Class D Amplifier.


Two-Channel 2500W Class D Amplifier
Lightweight 2U Rack Height

450 Watts/Channel @ 8 Ohms

VIA5002 Product Shot
VIA5002. Two-Channel Class D Amplifier.


Two-Channel 5000W Class D Amplifier
Lightweight 2U Rack Height

1600 Watts/Channel @ 8 Ohms

VIA5004 Product Shot
VIA5004. Four-Channel Class D Amplifier.


Four-Channel 5000W Class D Amplifier
Lightweight 2U Rack Height

450 Watts/Channel @ 8 Ohms

Available in this Series

How Can We Help?

If you have an audio project, whether that’s a Live Event or an Installation, and would like some expert advice or interested in a demo, please register your details

Get Project Advice
Return to Site

All material © 2023.
Copyright Martin Audio Ltd.
Subject to change without notice.
Martin Audio Ltd. Reg. No. 4824341

Martin Audio and the Martin Audio Logo are trademarks of Martin Audio Ltd and are registered in the United Kingdom, United States and other countries.