KEF Q55

Commentary

A tollboy speaker system equipped with a fourth generation UNI-Q driver and a woofer unit.

A 16 cm cone type woofer is installed in the low range.

16cmUNI-Q driver, a coaxial type unit unique to KEF, is installed in the middle and high range.
The UNI-Q driver consists of a 16 cm polypropylene cone type woofer and a 1.9 cm soft dome tweeter.
The tweeter uses neodymium iron boron, which has 10 times the magnetic force of ferrite, and ferrofluid, a special coolant with enhanced power handling. This realizes ultra-small size and high performance of the tweeter. This enables fine adjustment of the position of the tweeter in the direction of the vibration axis, so that the phase of the two units at the crossover point is perfectly positioned.
In addition, this unit adopts the latest version of the fourth generation utilizing UNI-Q technology developed by the latest reference series. By adopting half-clear diaphragm material and tweeter pure silk material, the sound connection from the low range to the high range has been further improved.

It has a perfect magnetic shielding design and has no adverse effect on cathode ray tubes, etc.

The network section is designed by computer acoustic analysis.

The enclosure bass reflex port has a geometric form.
Also, the exterior has a mahogany finish.

A speaker terminal for bi-wiring and bi-amplifier drive is adopted.

Spike for installation is included.

Model Rating

Method	3-way, 2-speaker, bass reflex system, tall boy type, magnetic protection design
Units Used	For low band : 16 cm cone type For Middle and High Areas : 16 cm Coaxial Type (16 cm Cone + 1.9 cm Dome)
Frequency characteristic	40 Hz ~ 20 kHz ± 3 dB (within 30 degrees from central axis)
Impedance	6 Ω
Output sound pressure level	91dB
Power handling	150W
Crossover frequency	3.3kHz
Enclosure volume	33 liters
External dimensions	Width 202x Height 837x Depth 245 mm
Weight	13kg