Uni-Q Driver Array: At the heart of
the Q Series loudspeaker is the Uni-Q driver array. This signature innovation by
KEF places the tweeter in the acoustic center of the mid-bass cone, with
both drivers acting as a single point source.
The result is a more detailed, accurate three-dimensional sound image, which is
dispersed more evenly throughout the room than is possible with any conventional
speaker. The Uni-Q
driver array is made up of a 1" aluminum dome tweeter and a 6.5" aluminum
- 1" Aluminum Dome Tweeter: At the center of the Uni-Q driver
array is a 1" aluminum dome tweeter that utilizes KEF's "tangerine"
waveguide over the tweeter dome for ultra-wide dispersion. Further
enhancements to the 1" aluminum dome tweeter is a damped loading tube and a
cone-neck de-coupler. The damped tweeter loading tube reduces any harshness
in the lower treble frequencies by gently terminating the sound produced
from the rear. The cone-neck de-coupler reduces output in the cone breakup
region to improve high frequency performance.
- 6.5" Aluminum Mid-Bass Woofer: The 6.5" mid-bass woofer
features an aluminum cone structure that has been
engineered reduce cone breakup and improve midrange performance. The
suspension allows more movement, better controlled excursion, and lower
distortion for accurate bass performance. As well as allowing the woofer's cone
its full extension, KEF's ingenious Z-flex surround guides the sound from
the tweeter across the surround without any disturbance or secondary
Centered Drivers: To optimize the
high resolution purity of the Q Series bookshelf speaker, the Uni-Q driver array
is positioned to the center of the cabinet to reduce unwanted internal
resonance and adding refinement to sonic clarity and detail.
Expect to hear clear highs, smooth midrange and clean bass with minimum
distortion at any volume level.
Computational Fluid Dynamics (CFD) Port Design:
Featuring a Computational Fluid Dynamics (CFD) port design with the port
positioned to the rear of the speaker, clarity is improved by reducing the
audibility of the midrange leakage through the
port. The port is also fared to minimize turbulence at high levels and reduce
port noise with less low frequency compression.
Note: Foam port plugs are included to insert into the rear-firing ports,
if the bass is to "boomy" due to room placement.
Sleek Cabinet Design: The sculpted Q Series finish epitomizes KEF's
approach with seamless, sleek cabinets unblemished by visible fittings and
joints. Q Series speakers are coated with a fine satin finish with matching
driver colors. If you wish to
conceal the drivers, optional magnetically attached speaker grilles (see
Accessories Tab) are available and sold separately.
Gold-Plated Binding Post Terminals:
On the rear of the speaker cabinet is a pair of heavy-duty, gold-plated binding post
terminals that will accept bare wire (up to 10AWG), pin-connectors, spade-lugs, and
banana plugs (single only). Plastic inserts must be removed from the binding
posts to use banana plugs.
Mounting & Placement Options: The bookshelf speaker can
simply be placed on a stand, table-top, shelf, or other flat-surface. The
included self-adhesive rubber feet protect your furniture and add approximately
0.1875" to the overall height of the speaker. A pair of speakers should be positioned 6' to 10' apart and placed between 18"
to 24" off the floor. They should be positioned at least 9" from the back wall
due to their rear-firing port and 39" from side walls. The speakers can be
"toed-in" or angled inward toward the main listening area to improve stereo
imaging and soundstage.
Note: There are no included brackets, keyhole slots, or
threaded inserts to accommodate wall mounting.
Q Series: Q Series speakers by KEF
deliver natural, accurate, high-resolution sound.
First introduced in 1991, the multiple award-winning Q Series has long delighted
music lovers and audiophiles with outstanding sound quality and innovative
design. The Q Series, now in its 8th iteration, brings high resolution sound
with more depth and more clarity. The Q Series consists of three floorstanding
two bookshelf speakers (Q150/Q350),
center channel speaker (Q650C),
and Dolby Atmos speaker (Q50A)
- all sold separately.
Optional Powered Subwoofer: A KEF
Kube series powered subwoofer (sold separately) is the perfect addition to
the Q Series loudspeakers.
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.