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Kef Q400b

Subwoofer

The last ingredient of the new Q system, of course, is the seductive Kef Q400b active subwoofer. The closed cabinet of the Kef Q400b contains a 250mm woofer driven by a built-in 200W class D amplifier. The Kef Q400b creates a spectacular low reproduction. The Kef Q400b is smooth, musical and addictive.

The Kef Q400b completes your Q series and makes it an all-encompassing sensation!


The active subwoofer of the new Kef Q series, the Kef Q400b, is available in cherry wood, dark oak and walnut wood.

10 year warranty 10 year warranty

We offer you 10 year warranty at this product!

€ 599,-

All stated prices are per item and including 19% VAT, unless stated otherwise.
Shipment costs are calculated per product by our sales department.

Specifications of Kef Q400b

Type or speaker  Actieve subwoofer
Frequency range  28 - 140 Hz
Sensitivity  85 dB
Recommended power  200 Watt Class D
Impedance  8 Ohm
Maximum output (SPL)  110 dB
Laag doorgangsfilter variabale  40 - 140 Hz, 4e orde
SignaalInputs laag niveau  RCA-phonosockets
Intern whiteh a capital L  23,2 liter
Number or speaker units  250 mm. Woofer unit
Measurements (H x W x D)  335 x 330 x 330 mm.
Weight  13,6 kg.
Other  Bass reflex gate, Magnetic Shielding
Colour  Kersenhout, black eiken, Walnoothout
Guarantee  10 years
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Kef Q400b