Buyer’s guide ranking

Best Used Subwoofers for Nightclubs and Bars

Subwoofers for nightclub dance floors and bar systems, where low-end control at high output matters more than cabinet count. Ranked from our current tested stock by driver condition, freight cost and spare-part availability — never by sponsorship or paid placement.

Subwoofers · Stock checked 2026-10 · 4 In stock

Top pick

Funktion One 21SW152-8 — A 21-inch-loaded sub that stays controlled when pushed hard; ask for photos of the driver surround, cabinet corners and speakon sockets.

Funktion One 21SW152-8 21-inch Professional Subwoofer · Subwoofers · Grade A
K Array RedLine 12-inch Powered Subwoofer · Subwoofers · Grade A
d&b B22 Subwoofer · Subwoofers · Grade A

Selection shortlist for systems integrators and rental companies

Funktion One 21SW152-8 21-inch Professional Subwoofer

Tested
Grade A
Availability: In stock

A 21-inch-loaded sub that stays controlled when pushed hard; ask for photos of the driver surround, cabinet corners and speakon sockets.

Best for: Large club floors and live stages that need a 21-inch sub to stay controlled at high output.

Watch out for: Check the driver surround and cabinet corners, and price the freight first — a 21-inch sub ships as heavy cargo, not parcel.

Drivers: 21 inch
Power handling: 2000 W
Amplifier: N/A

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K Array RedLine 12-inch Powered Subwoofer

Tested
Grade A
Availability: In stock

Slim, lightweight cabinets that truck easily; confirm the original rigging hardware and pole-mount parts are included.

Best for: Slim installs, bars and restaurants where depth behind the cabinet is limited but low end is still required.

Watch out for: Rigging hardware and pole-mount parts are often lost on slim subs; confirm the original brackets come with the cabinet.

Drivers: 12 inch
Power handling: 1200 W
Amplifier: integrated

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d&b B22 Subwoofer

Tested
Grade A
Availability: In stock

A 4 Ω cabinet with 2 × Neutrik NL4 connectors and 4000 W AES handling that rental fleets can chain and swap between amp racks, with 139 dB SPL from a single box.

Best for: Large-format rental stacks and touring sub arrays where one cabinet per position keeps truck packs and load-ins short.

Watch out for: At 115 kg per cabinet, check the handles, skids and grille for impact damage and confirm both 22" neodymium drivers are original and undamaged.

Drivers: 2 × 22" neodymium
Power handling: 4000 W AES
Amplifier: N/A

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LS NC-218 Dual 18-inch Professional Subwoofer

Tested
Grade B
Availability: In stock

Dual 18" drivers at 68 kg give a manageable two-person lift, and the passive 4Ω design with 2 x NL4 IN/THRU keeps wiring simple and serviceable for a rental fleet.

Best for: Mid-size club and live-event rigs where cabinets are stacked and moved several nights a week.

Watch out for: Check both 18" drivers for cone and surround damage, verify the NL4 connectors and wiring, and inspect the cabinet corners and handles for road wear.

Drivers: 2 x 18"
Power handling: 1200W
Amplifier: N/A

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How we rank

Each unit in this list is photographed as it stands and bench-tested before it goes on the page. The order is set by our inventory team on parts availability, service history and how the model holds up in rental use — never by sponsorship or paid placement. We do not publish sales totals we cannot verify.

What to check before you buy

Ask for photos and a video of the exact serial number you will receive, not a stock picture.
Confirm amplifier, DSP presets and rigging hardware are included — they are the most expensive parts to source later.
Check driver surrounds for foam rot and ask whether any driver has been re-coned.
Match voltage and mains plug to your country before shipping; 110 V and 230 V versions are not interchangeable.
Budget for freight, duty and a service check on arrival — used gear is priced FOB, not delivered.

The scenario this shortlist is built for

Nightclub and bar PA system for dance floors and live stages Line arrays, subs and DSP for clubs, bars and live stages.

Buyer questions

Are the units in this ranking actually tested?

Yes. Each unit is powered up, run through its inputs and outputs and checked for noise, fan condition and channel balance in our warehouse. The test result is recorded against the serial number; ask us for it before you pay.

What condition grade do these units carry?

Grades are shown per unit: A means 90% or better cosmetic condition with no functional faults, B means visible wear but full function. The grade in the table is the grade of the actual cabinet you will receive.

Can you supply several units of the same model?

Often yes. Quantities change weekly because stock comes from trade-ins and rental fleet rotation. Tell us the model and quantity and we will confirm what is on the floor today.

How is used gear shipped and what if something arrives faulty?

We ship FOB port of loading by sea or air, crated or palletised for export. Every lot carries a 90-day test warranty: if a fault covered by the test report appears, we ship the replacement part or arrange a repair credit.

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