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KEF KASA500 Subwoofer Amplifier

Free UK Delivery


KEF KASA500 Subwoofer Amplifier

KEF's range of home cinema equipment spans across a number of series. This includes traditional hifi speaker packages from the company's C, Q and R series of the loudspeaker, as well as dedicated home cinema satellite + subwoofer packages like the E305 and the T305 models. Each of these packages is able to relay a level of clarity and dynamic superiority that many lesser brands desperately strive to match. When combined with your favourite films, programmes and games, these speaker packages are able to truly immerse you into the situation of the protagonist to hear and feel every emotion and slight vibration, bringing you closer to your favourite works than ever before. 

KEF design, engineer and manufacture a range of quality in-wall subwoofer units, perfect for visually discrete home theatre systems. Many of these subwoofers are passive and therefore require a dedicated amplifier, designed specifically to the requirements of in-wall subwoofers. The KASA500 is a DSP controlled dual amplifier, offering a powerful 200 watts per channel of class D amplification. Both line and loudspeaker level inputs are present and the DSP configurable pass-through, with optional high pass filters, making the KASA500 a highly versatile subwoofer amp. 

Who is KEF?

KEF is a highly renowned, multi-award winning loudspeaker manufacturer whose high-quality products can be found all over the world. KEF began in Maidstone Kent in 1961 by an electrical engineer, Raymond Cooke. KEF is named after Kent Engineering & Foundry, which occupied the KEF site previously. Raymond Cooke was created OBE by Queen Elizabeth II in 1979. KEF has produced products for the BBC, and have a vast range of products at many different price points.

Optional rack-mount ears are included. 


CROSSOVER FREQUENCIES   40 - 140Hz or software bypass
INPUTS   Selectable stereo RCA line level, or mono LFE RCA level; Stereo speaker level
 12 VOLT TRIGGER INPUT VOLTAGE  8 to 14 Volt DC@1.5mA max ⅛" diameter female plug (tip positive or tip negative)
 RECOMMENDED AMPLIFIER POWER  (<1% THD) 2 x 250watts 4ohms; Bridge 1 x 500watts 8ohms
AMPLIFIER POWER   2 x 250watts 4ohms; Bridge 1 x 500watts 8ohms (<1% THD)
 PRODUCT EXTERNAL DIMENSIONS H x W x D : 88 x 432 x 304mm (3½ x 17 x 12 in.)
H x W x D with feet : 92 x 432 x 304mm (3⅝ x 17 x 12 in.)
H x W x D with rack ears; 2 EIA rack space: 88 x 483 x 304mm (3½ x 19 x 12 in.)


UK Delivery

Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £100*. Out of stock items will be dispatched as soon as they become available, which can take between 4 to 21 days      

UK Delivery orders are sent via our couriers' DPD Local on a next-day-delivery service and usually take between 1 and 3 days. 


Local Delivery

Certain manufacturers disallow mail order for their products, however a local delivery may be possible.

We offer a local delivery service for a large number of our products. After your order has been placed, a member of the Hifi Gear team will contact you to arrange a convenient date and time for your local, personal delivery.


Click & Collect

We offer a free ‘Click & Collect’ service on all items. As soon as your order has been completed and is ready for collection a member of our team will be in contact with you. Orders can be collected from our store at 11 King Street, Hereford, HR4 9BW.


Please use this link to find more detailed delivery information or contact us for more details