Vonyx - Subwoofers
Vonyx SWA18
18-inch subwoofer with 1000W peak output, boxed
Free UK delivery by 19 - 21 Jul
THERE IS ONLY ONE.
ABOUT THIS PRODUCT
Vonyx SWA18 - Subwoofers - Black - Fair w/ Original Box
Why This One
- Fair condition — noticeable imperfections, priced to reflect it
- 18-inch driver with 1000W peak output and 119 dB sensitivity.
- Comes with original box — straightforward to transport and store safely.
Condition: Fair
This Vonyx SWA18 is a fair-condition subwoofer. Our 8-point functional test was completed in full: all checks passed except no rattle. Note: Rattling is coming from the driver; a blown voice coil is suspected. Please review all photos carefully, as they provide an accurate representation of the cosmetic condition of the product.
What's Included
- Vonyx SWA18 (Black)
- Original Box
About This Model
The Vonyx SWA18 is an active PA subwoofer built around an 18-inch driver, delivering 1000W peak power across a frequency range of 30–120 Hz. It connects via XLR IN/THRU and RCA inputs, making it straightforward to integrate into an existing PA setup or to chain with additional speakers. An adjustable low-pass filter (30–120 Hz), a 2-band equaliser, and a 0–180° phase switch give the operator meaningful control over how the unit blends with full-range tops. The wooden cabinet with felt coating houses all of this in a sturdy enclosure weighing 24.6 kg, with a sensitivity rating of 119 dB at 8 Ω.
A great opportunity to own a Vonyx SWA18 at this price point.
General
| Brand | Vonyx |
| Model | Vonyx SWA18 - Subwoofers - Black - Fair w/ Original Box |
| Category | Subwoofers |
| Condition | Fair |
Condition
This Vonyx SWA18 - Subwoofers - Black - Fair w/ Original Box has been inspected and set up by our workshop. Every item is a single, one-off piece, photographed as it is so you know exactly what you are buying.
Condition guideOur inspection process
- 01
Workshop inspection
Checked by a specialist, not just a technician. Body, hardware and cosmetics visually assessed for wear, damage and authenticity.
- 02
Function tested
Controls, connections and electronics tested at the bench to confirm everything works as it should.
- 03
Prepared for use
Cleaned and set up where needed so it arrives ready to use straight out of the box.
- 04
Photographed & documented
Every angle, mark and detail captured in high resolution so you know exactly what you are buying.
- 05
Double-boxed dispatch
Re-checked before packing, then carefully packed and sent tracked and signed-for.

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After you buy
01
Order placed
Payment confirmed instantly. You'll get an email receipt and tracking link to follow.
02
Workshop pack
We re-check the inspection, photograph the packing, and carefully box for safe transit.
03
Tracked dispatch
Signed-for courier across the UK. Most orders arrive within 2 working days.
04
30-day returns
Not the one for you? Send it back within 30 days for a full refund.
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Vonyx SWA18 - Subwoofers - Black - Fair w/ Original Box














