The KEF KASA500 is a subwoofer amplifier specifically designed to work with KEF in-wall subwoofers (Ci3160RLb-THX and Ci4100QLb). 


KASA500 is a powerful Class-D Dual 250WPC amplifier. This DSP controlled system amplifier is optimized to deliver thunderous bass from KEF Ci subwoofers. With both line and speaker level inputs, and DSP configurable pass-through with optional high pass filters – the KASA500 is versatile and can be deployed in limitless system configurations. Optional rack mount ears included.

KEF KASA500 Subwoofer Amplifier

  • Model KASA500
    Amplifier Power
    (<1% THD)
    2 x 250watts 4ohms;
    Bridge 1 x 500watts 8ohms
    Crossover Frequency 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)
    External Dimensions
    (H x W x D)
    88 x 432 x 304mm
    (3½ x 17 x 12 in.)
    External Dimensions
    (H x W x D) (with feet)
    92 x 432 x 304mm
    (3⅝ x 17 x 12 in.)
    External Dimensions
    (H x W x D)
    (with rack ears; 2 EIA rack space)
    88 x 483 x 304mm
    (3½ x 19 x 12 in.)
    Weight 4kg (9 lbs)
    Finish Black
Bussiness Phone #   1- (647) -424-4353
Toll-Free # 1-(844) -893-3355
Cell # 1- (416) -893-3355
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Richmond Hill, Ontario, Canada
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