REL R-528 active subwoofer


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With massive performance at an astonishing reasonable price, the new REL R-528 active subwoofer hits new levels of value for state of the art subwoofers. With two 12" long throw drivers, one passive downward firing, the other active front firing powered by a 500W class D amplifier, this sub kicks bass in a very substantial way.

3 Separate Rotary Controls for (1) Hi/Low Volume (2) .1/LFE Volume
(3) Crossover Frequency.
Dedicated inputs for Hi Level (Speakon), Low Level (RCA and .1 (RCA).
Extremely low crossover points that allow “seamless” blending with
any loudspeaker.
Proprietary REL-D™digital amplifier input provides the appropriate
impedance and grounding environment for most Class D amplifiers.
Available in Piano Black Lacquer Finish.
Custom-Designed 12” (305mm) long-throw front firing drive unit.
12” (305mm) down firing passive radiator.
500 Watt high-current Class D power amplifier.
Dimensions (WHD): 15.5 x 17.5 x 17.2 in., 394 x 445 x 436 mm
(height includes feet, depth includes grille).
Weight: 58 lbs., 26.3 kg.

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Providing your item is in stock, the order is usually dispatched within 24 hours. Please remember that postage and packing is completely free for orders over £50*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.

Deliveries usually take 1-3 working days. The majority of orders are sent via our couriers'; Interlink Express on a next-day-delivery service. Smaller, low value or light-weight items are normally posted using Royal Mail Recorded or Royal Mail Special Delivery.

Once your product has been dispatched, you will be notified via email and sent a unique consignment number, you can use this number at to check the status of your delivery. If you have provided a mobile telephone number, Interlink's Predict service will notify you by text (and email) of a one-hour delivery window. If the window they suggest is inconvenient, you can change the date of delivery to a later one via text or email.

*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however delivery to these locations will incur a charge and can only be sent via a 2-day service.

Shipping CostsMainland UK (Next-Day)Offshore/Out-of-reach (2-day)Northern Ireland, Channel Islands, Isle of Man, Scottish Islands, Scilly IslandsRepublic of Ireland (2-day)
Under £50 Orders £7.50 £12.50 £15.00
Over £50 Orders FREE £19.99 £29.99
Surcharge Orders £50.00 £69.99 £79.99
Saturday Delivery £12.99 N/A N/A
Sunday Delivery £12.99 N/A N/A
Saturday by 12 Delivery £35 N/A N/A


Post codes exempt from the free delivery service include:

Scottish Highlands Post Codes: AB30-38, AB41-42, AB44-56, FK17-99, G83, IV1-28, IV30-39, IV52-54, IV63, KW1-14, PA21-33, PA34-40, PH15-26, PH31-41, PH49-50
Islands Post Codes: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3
Northern Ireland: All BT postcodes
Channel Islands Post Codes: JE, GY
Scilly Isles Post Codes: TR21, TR22, TR23, TR24, TR25