BWN21/4 Sub Bass Driver

Name: BWN21/4 Sub Bass Driver
Brand: Default Vendor
SKU: BWN21/4
Price: 349.00 GBP
Availability: OutOfStock

Product variants

Program Power: 4000w

RMS: 2000w

IMP: 4Ω

Price £349.00 (ex. VAT)

£418.80 (inc. VAT)

Out of stock

The BishopSound BWN21/4 Ω is a 21″ professional subwoofer delivering 2000W RMS and 4000W peak power with a 5″ voice coil and 97 dB sensitivity. Its neodymium magnet ensures high output with reduced weight, while enhanced venting provides excellent thermal management for reliable performance in demanding live sound or installed systems.

Designed for small or large ported enclosures, the BWN21/4 Ω offers precise, low-distortion bass from 33 Hz to 1000 Hz with a 14 mm Xmax. Its high displacement and fast transient response make it ideal for high-power sub-bass arrays in clubs, events, or professional PA setups, combining durability, reliability, and cost-effectiveness in a compact, British-engineered design.

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Summary Specifications:

Nominal Diameter 21”
Overall Diameter 21.54”
Bolt Circle Diameter 20.7”
Baffle Cutout Diameter 19.80”
Depth 9.8”
Flange and Gasket Thickness 0.53”

Pairs well with

ENGINEERED IN BRITAIN

Proudly designed, tested, and tuned on UK soil.

REPAIR-FIRST MINDSET

We don’t just replace; we reclaim, repair, and revive sound.

BUILT TO LAST

Great sound shouldn’t die young and we’ll rebuild it if it does.

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