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Product Category

Subwoofers for events, touring, and installed sound

Bass-reflex and horn-loaded subwoofer cabinets designed to extend low-frequency headroom for music-forward events, DJ setups, and concert-scale sound reinforcement — sized and rated for real venue conditions rather than marketing-spec power figures.

Subwoofers — representative product image, SR Professional Audio

Representative product image

SR-118S

Single 18" passive subwoofer • 18" (460 mm), 4" voice coil • 35 Hz – 200 Hz (±3 dB)

SR-218SP

Dual 18" passive subwoofer • 2× 18" (460 mm), 4" voice coil each • 32 Hz – 150 Hz (±3 dB)

Applications

  • Music and DJ reinforcement
  • Concert and touring low-frequency support
  • Wedding reception and sangeet audio
  • Cinema and large-room bass extension

Buying Guidance

Pair subwoofer quantity and power to the room's volume and expected SPL target, not just the main speaker's wattage — an undersized subwoofer under a capable main system is the most common low-end complaint we hear from event operators.

Maintenance

Check port and enclosure seals periodically, since a compromised seal changes the tuned frequency response and reduces output — this is more consequential on ported subwoofer designs than sealed ones.