KEF R7 Floorstanding Speakers
The R7 is the midsized floorstanding member of the new R Series. Featuring two 165mm (6.5 in.) hybrid aluminium bass drivers and a Uni-Q combining a 125mm (5 in.) midrange driver and 25mm (1 in.) aluminium dome tweeter, R7 outperforms all expectations. Equally at home with music and film, R7 proves to be just as flexible as the rest of the R Series range.
Placing the tweeter in the acoustic centre of the midrange cone brings the acoustic ideal of a single point source closer to realisation. The new R Series benefits from a new 12th generation of the legendary Uni-Q which has been extensively designed using KEF’s in-house simulation and analysis tools. KEF’s engineers have been able to dramatically reduce colouration through reducing resonance in the minute gaps between Uni-Q’s separate elements. The resulting sound is purer, more precise and makes stereo imaging far more believable.
Derived directly from the Reference Series, the Shadow Flare is an innovative method of reducing harmful cabinet diffraction for delicate high-frequencies. Shadow Flare is a carefully profiled transition surface which extends the waveguide effect of Uni-Q. The tweeter no longer has line of sight of the cabinet edges, creating a ‘shadow region’ at the points where the potential for diffraction is highest. The result is vastly improved fine detail, particularly when it comes to the subtle nuances of plucked strings and other percussive sounds.
Bass is the very foundation of music; everything is built upon it and maximising bass performance is a vital building block towards pristine sound. R Series bass drivers are built using a two-part structure, where a shallow concave aluminium skin sits atop a paper cone. This great stiffness, combined with the cone’s unique geometry, delivers pure piston like movement to deliver punch and speed. To accurately control this mighty driver, KEF has also completely redesigned its magnet system to create a more even magnetic field. The overall result is more impressive and impactful.
A solid platform is imperative for great sound. The new R Series benefits from Constrained layer damping. This system utilises internal braces joined by a ‘lossy’ interface and is highly effective at dissipating unwanted vibrations that would otherwise artificially change the sound and music.
|DESIGN||Three-way bass reflex|
|DRIVE UNITS||Uni-Q Driver Array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium cone
LF: 2 x 165mm (6.5in.) hybrid aluminium
|CROSSOVER FREQUENCIES||400Hz, 2.9kHz|
|FREQUENCY RANGE||33Hz-50kHz (-6dB)|
|TYPICAL IN-ROOM BASS RESPONSE||27Hz (-6dB)|
|FREQUENCY RESPONSE||48Hz-28kHz (±3dB)|
|HARMONIC DISTORTION||<0.3% 120Hz-20kHz (90dB, 1m)|
|AMPLIFIER POWER||15-250W (recommended)|
|NOMINAL IMPEDANCE||8Ohms (min.3.2Ohms)|
|WEIGHT*||31.4 kg (69.2 lbs.)|
|DIMENSION (H X W X D)||1062 x 200 x 383.5 mm (41.8 x 7.9 x 15.1 in.) with terminal*|
|DIMENSION (H X W X D)||1108.9 x 310.6 x 383.5 mm (43.7 x 12.2 x 15.1 in.) with terminal with Plinth*|
|DIMENSION (H X W X D)||1062 x 200 x 360 Cabinet only|
|FINISHES||Black Gloss / White Gloss / Walnut|
|DOCUMENT DOWNLOAD||R Series White Paper
R Series Brochure
R Series Information Sheet
R Series User Manual
Maintenance Guide for R Series Microfibre Grille
|REMARKS||* Measurement per unit|
http://www.kef.com/html/en/showroom/hi-fi_series/r_series/ Facebook: https://www.facebook.com/KEF.Audio Live it. Feel it. The all-new R Series delivers a sound so pure you live each and every moment.
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All KEF Products are precision engineered and the Authorised Distributors provide warranty against FAULTY MATERIAL AND/OR WORKMANSHIP for the following products from the date of original purchase is as follows:- (Warranty may vary according to the local legal requirements of the country concerned.)
Passive loudspeakers: FIVE years
Active loudspeakers, powered subwoofers and motorised speakers: ONE year, or TWO years if purchased in the European Union
Electronics and headphones: ONE year, or TWO years if purchased in the European Union
This warranty will not be extended or renewed at the expiry of the above period.
WARRANTY COVERAGE AND LIMITATIONS
This warranty is only valid in the country of purchase and only applies to the first purchaser of the KEF product(s) from an Authorised Dealer. This warranty does not extend to any other person or transferee, and terminates if you sell or otherwise transfer the KEF product(s) to another party/entity.
This warranty does not cover any of the following:-
normal or fair wear and tear and/or any wear from environmental deterioration of the KEF product and/or its components
mechanical damage or derangement of the KEF product in transit that is not attributable to the fault of the KEF and its Authorised Distributor
deterioration of any consumable components of the KEF product which would become worn or depleted through use (e.g. batteries)
any KEF product whose serial number label(s) is/are missing, made illegible, defaced, altered, removed, or damaged
any KEF product and/or any of its components that is not purchased from an Authorised Dealer/Distributor, including any parallel imports or grey market products
incorrect or unauthorised components which have been substituted and/or used for the KEF Product;
any KEF Product and/or any of its components which have been installed, disassembled, repaired, converted, modified, tampered with or otherwise interfered with in any way by any person/entity other than an authorised representative of the KEF and its Authorised Distributors
any defects, malfunction, loss and/or damages caused by or resulting from any of the following:-
any of the circumstances set out in (1) - (7) above
any accident or negligence not caused by the fault of KEF and its Authorised Distributors
any improper installation or connection of the KEF product (including without limitation any improper connection of the KEF product to improper voltage or power source) not caused by the fault of any of the KEF and its Authorised Distributors
any improper care, dropping, mishandling, misuse, abuse or unreasonable or improper use, operation or maintenance of the KEF Product
any operation of the KEF product with any faulty, unsuitable or inappropriate apparatus and/or ancillary equipment
any use of the KEF Product under abnormal or inappropriate voltage or power surges;
failure to use, operate or maintain the KEF product in accordance with the instructions set out in the users' manual
exposure of the KEF product to extreme temperature, heat, water or other liquids, insects, excessive moisture, sand, chemicals, battery leakage or any other contaminants
any force majeure events, including but not limited to any acts of God, fire, lightning, typhoon, storm, earthquake, hurricane, natural disaster, tsunami, flood, war, riot, public disturbance
any other causes beyond the reasonable control of either KEF and its Authorised Distributor.