KEF Q750 Floorstanding Speakers – Black

Here we have a pair of floorstanding loudspeakers from British experts KEF. These are the Q750’s and feature their distinctive Uni-Q arrangement. They are in good condition, noting a few blemishes – please see photographs. They come supplied in original factory packaging and as always, come with our three month warranty.
KEF Say….
At KEF, we believe that music should not just reach your ears, but your heart. Our passion for music drives our quest for quality sound, and inspires constant innovation. We develop tools that deliver music faithfully and honestly, in all its glory. We believe that everyone deserves to experience music as it was meant to be heard.
One of life’s great joys is to experience the intensity of an outstanding recorded performance in your own space. Q Series speakers by KEF reproduce recordings in high resolution. The sound is natural and accurate, exactly like the original performance.
The Q Series range, now in its eighth iteration, has long delighted those who aspire to fine audio. This edition has been extensively redesigned to enhance the depth and clarity of the sound. Within the collection are sets for every room, budget and taste.
The latest enhancements to Q Series speakers elevate the range to new levels of quality and enjoyment. The new system design is characterised by repositioned drivers and ports. Materials and components have been rethought, updated. Potential sources of distortion have been eliminated.
At the heart of the evolved Q Series is the legendary Uni-Q driver array. This signature innovation places the tweeter in the acoustic centre of the midrange and bass cone, bringing the acoustic ideal of a single point source closer than ever to realisation.
Expect to hear effortlessly sharp, clear highs, sweetly robust midrange and fast and clean bass with minimum distortion at any volume. In short, flawlessly accurate reproduced sound.
There’s a magnetism in the lower tones. Few can resist the call of a primeval beat echoing from the dawn of humanity. For sheer gut-thumping energy, Q Series speakers will not disappoint. However there’s more to bass than raw power. Much more.
The Q Series faithfully reproduces the subtleties of powerful bass instruments. Feel the twangy grunt of a round-wound bass guitar string thumped with a plectrum, the baritone bounce of a kettledrum, the multidimensional majesty of Bach blasted through a massive pipe organ. The nuances of these glories are emphasised with the beefier roll surrounds of the low frequency drivers and ABRs (Auxiliary Bass Radiators).
After careful consideration and much debate we modified aspects of the Uni-Q driver array that is the centrepiece of Q Series speakers. The decisions of our engineers were informed by computational modelling, followed by many hours of exhaustive laboratory testing under stringent conditions.
Refinements to this generation of Uni-Q driver include a damped tweeter loading tube and a cone neck de-coupler. The cone neck de-coupler reduces output in the cone breakup region to improve high frequency performance.
The cone return has been removed to further improve breakup behaviour by reducing mass at the code edge.
Damped tweeter loading tube – This reduces any harshness in the lower treble frequencies by more gently terminating the sound produced from the rear.
Cone structure – This innovation reduces cone breakup and improves midrange performance.
Suspension – Optimised design allows more movement, better controlled excursion and lower distortion.
Rubber suspension – Superior to fabric, the new rubber rear suspension allows greater ABR excursion and a lower tuning frequency so that the speaker can play deeper and louder.
Roll surround – A larger roll surround allows a longer throw with less distortion at high sound pressure levels.
A long, tall salutation to KEF traditions, the floorstanders represent the height of excellence in the Q Series range. Within each elegant cabinet are numerous enhancements.
The Uni-Q driver is now isolated within a sealed box. The enclosure reduces low frequency load on the Uni-Q and the possibility of intermodulation distortion.
Crossovers are upgraded with low distortion inductors. The optimised design requires only a single pair of binding posts. Elements of the Uni-Q driver; ABR and LF driver are constructed with new materials, which subtly enhance performance.
To cater to every spatial challenge faced by the audio system designer; our floorstanders are available in three sizes. Whether the QSSO, Q750 or the Q950 model, a Q Series floorstander speaker set fills a room with astonishing sound of blissful purity.
Understanding that our products will be in use for many years, and very likely decades, KEF designers seek longevity in style. The sculpted Q Series finish epitomises our approach with seamless, sleek cabinets unblemished by visible fittings and joins.
Q Series speakers are coated with a fine satin finish in black or white with matching driver colours. Should you wish to conceal the drivers, optional magnetically attached speaker grilles are available.
Specifications:
Design: Two and a half-way bass reflex
Drive Units: 165 mm aluminium Uni-Q 25 mm vented aluminium dome HF; 165 mm aluminium LF; 2 x 165 mm aluminium ABR
Frequency Range Free Field: 42 Hz (- 6 dB)
Frequency Response: 48 Hz – 28 kHz (± 3 dB)
Crossover Frequency: 2.5 kHz
Amplifier Requirements: 15 – 150 W
Sensitivity: 88 dB (2.83 V/1 m)
Maximum Output: 111 dB
Nominal Impedance: 8 Ω (min. 3.8 Ω)
Dimensions: 923 (H) x 210 (W) x 306 (D) mm; 977 (H) x 323 (W) x 310 (D) mm (with plinth)
Weight: 16.5 kg