| Content | “Sit anywhere" Uni-Q Sound
At the heart of the evolved Q Series is the Uni-Q driver array. KEF's signature innovation places the tweeter in the acoustic center of the midrange cone, bringing the acoustic ideal of a single point source closer than ever to realisation. The result is a more detailed, more accurate three-dimensional sound image, which is dispersed more evenly throughout the room than is possible with a conventional speaker. Uni-Q\'s ultra-wide dispersion is further enhanced by KEF's 'tangerine' waveguide over the tweeter dome.
Uni-Q sound taken to the next level
The closed box midrange cabinet design reduces the load on the Uni-Q midrange cone, increasing clarity and detail while delivering cleaner, punchier bass.
With the addition of the Damped tweeter loading tube providing a gentle termination of sound produced from the back of the tweeter, lower treble performance is improved dramatically and a new low-distortion inductor on the crossover provides cleaner bass response.
Redesigned Bass Drivers
Low-frequency (LF) drivers now have a larger roll surround, along with a new spider suspension to produce cleaner bass at high volumes. A new cone structure improves midrange clarity, and an enhanced Auxiliary Bass Radiators (ABRs) with a new surround and rear suspension delivers better controlled and more impressive bass.
Redesigned Bass Drivers
Low-frequency (LF) drivers now have a larger roll surround, along with a new spider suspension to produce cleaner bass at high volumes. A new cone structure improves midrange clarity, and an enhanced Auxiliary Bass Radiators (ABRs) with a new surround and rear suspension delivers better controlled and more impressive bass.
Floorstanders
Q750 is the intermediate model for the Q Series floorstanders. Featuring the KEF signature Uni-Q driver array paired with an impressive 165mm (6.5 inch) aluminium bass driver and two matching ABRs, the Q750 combines astonishing sonic reproduction with powerful room filling bass.
| Model |
Q750 |
| Design |
Two and a half-way bass reflex |
| Drive Units |
165mm (6.5in.) aluminium Uni-Q
25mm (1in.)vented aluminium dome HF
165mm (6.5in.) aluminium LF
2 x 165mm (6.5in.)aluminium ABR |
| Frequency range free field |
42Hz (-6dB) |
| Frequency Response |
48Hz-28kHz (±3dB) |
| Crossover Frequencies |
2.5kHz |
| Maximum Output |
111dB |
| Amplifier requirements |
15-150W |
| Sensitivity |
88dB |
| Nominal Impedance |
8 Ohms (min.3.8 Ohms) |
| Dimensions |
H x W x D:
923 x 210 x 306 mm
977 x 323 x 310 mm (with Plinth) |
| Weight |
16.5kg (36.4lbs) |
| Unit measurement |
Pair |
Grille not included |
Recommended Usage Front Speakers
Type 3-Way Bass Reflex Design
Woofers Dual 8" PMD Cone
MidRange Driver 5" Cone With Waveguide Horn
Tweeters 1" Aluminum Dome With Waveguide Horn
Magnetic Shielding Yes
Twin Bass Reflex Ports Single Port
Gold-Plated Brass Extruded Terminals Bi-Wiring Terminals
Frequency Response 30 Hz - 35 kHz
Sensitivity 89 dB/2.83 V/1 m
Input Power (Maximum / Nominal) 250W / 100W
Impedance 6 Ohms
Product Dimensions (W x H x D) 10-7/8" x 43-5/16" x 15-3/8“
Product Weight (lbs. each) 53.7
|
Dimensions | Metric :5-1/4" W x 5-1/8" D x 42" H | 13.3 x 13.0 x 106.7 cm
Height with Base | Metric :42-7/8" | 104.5 cm
Driver Complement :One 1" pure aluminum dome tweeter; Two 4-1/2" high definition midrange drivers; Two 4-1/2" high definition bass drivers; Two 4-1/2" pressure coupled bass radiators
Base Dimensions | Metric :8-3/4” W x 8-5/8” D | 22.2 x 21.9 cm
Accessories :Plastic Foot Tippers; Isolation Spikes
Frequency Response :35 Hz – 30 kHz
Impedance :Compatible with 8 Ohms outputs
Sensitivity :91 dB
Recommended Associated Amplifier Power :20 - 225 watts
A/V Receiver Crossover Setting :100 Hz
Inputs :One pair of 5 way binding posts
Enclosure :Aircraft grade extruded aluminum
Available Finishes :Gloss Black
Base :Tempered Glass
Packaging :One to a carton
Weight | Metric :23 lbs | 10.4 kg
Warranty :5 Years
|
Dimensions | Metric :42" H x 8" W x 12-1/4" D | 106.7 x 20.3 x 31.1 cm
Driver Complement :Two 1" aluminum dome tweeters; Two 6-1/2" high definition bass/midrange drivers
Frequency Response :20Hz - 30 kHz
Impedance :Compatible with 8 Ohm outputs
Sensitivity :91 dB
Recommended Associated Amplifier Power :20 - 300 watts
A/V Receiver Crossover Setting :Large; Full Bandwidth
Inputs :One set of 5 way binding posts
Available Finishes :Piano-Black Gloss
Accessories :Feet; Isolation Spikes
Packaging :One to a carton
Weight | Metric :57 lbs | 25.9 kg
Warranty :5 Years
|
Dimensions | Metric : 4" D x 4-1/16" W x 19-9/16" H | 10.1 x 10.3 x 49.7 cm
Base Dimensions | Metric :5-1/2" D x 6-1/2" W | 14 x 16.5 cm
Driver Complement :One 1" pure aluminum dome tweeter; Two 3-1/2" high definition bass/midrange drivers; Two 3-1/2" pressure coupled bass radiators
A/V Receiver Crossover Setting :120 Hz
Frequency Response :60 Hz – 30 kHz
Inputs :One pair of 5 way binding posts
Impedance :Compatible with 8 Ohms outputs
Enclosure :Aircraft grade extruded aluminum
Sensitivity :89 dB
Available Finishes :Gloss Black
Recommended Associated Amplifier Power :10 – 175 watts
Accessories :Wall bracket; Glass Base
Mounting Options :Vertically Only: On Shelf with included glass base; On wall with included flush mounting bracket
Packaging :One to a carton
Weight | Metric :8 lbs | 3.6 kg
Warranty :5 Years |
If itʼs hard to put the sound of the CM9 into words, thatʼs just as well. This top-of-the-range floorstanding speaker will fill even the largest domestic spaces with music so richly detailed, and so startlingly lifelike, that it will leave you speechless.
The three-way CM9 delivers truly commanding bass with the aid of twin 165mm paper/Kevlar® cone drive units. An FST® driver, with its characteristic compression surround supporting the outer edge of the distinctive Kevlar® cone, is specially developed for outstanding midrange performance. The CM9ʼs Nautilus™ tube-loaded aluminium dome tweeter keeps high frequencies crisp and sharp all the way up to 50kHz and beyond.
The quality of CM Series drive units has made it possible to use minimalist crossovers throughout the whole range. The resulting gentle transition between drivers avoids the unnaturally rapid changes in dispersion that bedevil more complex designs, while the high quality components, carefully chosen after exhaustive listening tests, ensure that as little as possible gets between you and the sound of the original recording.
All CM Series speakers come with aluminium driver trims. Grilles attach magnetically, so there are no unsightly grille-mounting features to spoil the clean lines of the speakerʼs façade. For the finish, you can choose either one of two real-wood veneers in Rosenut or Wengé, or a highly polished gloss black.
Technical features
Nautilus™ tube loaded aluminium dome tweeter
Kevlar® brand fibre cone FST midrange
Flowport™
Description 3-way vented-box system
Drive units 1x ø25mm (1 in) aluminium dome high-frequency
1x ø150mm (6 in) woven Kevlar® cone FST midrange
2x ø165mm (6.5 in) paper/Kevlar® cone bass
Frequency range -6dB at 30Hz and 50kHz
Frequency response 56Hz - 22kHz ±3dB on reference axis
Dispersion Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc
Sensitivity 89dB spl (2.83V, 1m)
Harmonic distortion 2nd and 3rd harmonics (90dB, 1m)
|
Jensen –
Great looking speakers. Have owned in the past and was sad to see you can no longer bi-amp them like the older ones but these still sound amazing. The center image is flawless with the Uni-q drivers and they honesty have nice smooth bass even though it only has one woofer. Excellent sound quality
JIM –
Got q750 to replace old b&w 601 bookshelf speakers, huge up grade, very happy with the results. Intended to go to a local shop to see some options. Called Eftichis, nice gent on the phone talked me thru the purchase, easy and done. Renewed my interest in the hifi hobby, thank you.