Kef

Kef R3 Standmount Speakers

£1,040 £1,300
Finish:

Stock Information : Only 1 in stock

Decades of experience and Kef's unbridled passion for music come together in the new R Series. It combines innovations drawn from the Reference Series with new bespoke technologies to ensure the new R Series delivers more detail, deeper insight and greater excitement.

The R3 stand mount shares the same Uni-Q driver array as the range topping R11 in a full range true 3-way speaker the R3 has a powerful 165mm (6.5 in.) bass driver and a 125mm (5 in.) midrange driver with 25mm (1 in.) aluminium dome tweeter Uni-Q array that pushes performance to new extremes.

For starters, Uni-Q’s midrange motor system has been completely redesigned using KEF’s in-house simulation and analysis tools as well as decades of experience. The motor is responsible for converting the audio signal from an electrical voltage to a mechanical force. Ideally it does this without any loss and without introducing any distortion. For a midrange driver, significant distortion can be generated due to modulation of the voice coil inductance. The motor in the new R Series has a shaped and undercut pole, and symmetrical aluminium demodulation rings, which combine to significantly reduce the inductance in the lower midrange so there is less variation as the voice coil moves.

To maximise bass performance in the new R Series, the dedicated low-frequency drivers are built using a two-part structure, where a shallow concave aluminium skin sits atop a paper cone. This stiffness combined with the cone’s unique geometry reduces additional resonances and delivers the pistonic movement that makes these drivers time so well.

The new drivers also benefit from a completely redesigned magnet system that creates a more even magnetic field, and a design of suspension that reduces harmonic distortion for a cleaner, more precise sound.

The result is tight, agile bass that digs out all the soul and punch available in the low end.

All the cabinets in the new R Series benefit from Constrained Layer Damping bracing. Originally developed for the multiple award-winning LS50, this system utilises internal braces joined to the panels by a lossy interface rather than being adhered to it rigidly. This approach is highly effective at dissipating unwanted vibrations.

A new internal bracing layout works alongside Constrained Layer Damping to create an incredibly inert platform from which the drive units can work their magic, enabling the R Series to deliver music as it is supposed to sound, without any unwanted extras...

Specifications

DESIGN

Three-way bass reflex

WEIGHT

13.5 kg (29.8 lbs.)
 
 

DIMENSION (H X W X D)

422.2 x 199.6 x 335.5 mm (16.6 x 7.9 x 13.2 in.) with terminal*
 
 

DIMENSION (H X W X D)

422 x 199.6 x 312 Cabinet only
 
 

SENSITIVITY

(2.83V/1m) 87dB



CROSSOVER FREQUENCIES

400Hz, 2.9kHz

 

FREQUENCY RANGE

38Hz-50kHz (-6dB)

 

TYPICAL IN-ROOM BASS RESPONSE

30Hz (-6dB)
 
 

FREQUENCY RESPONSE

58Hz-28kHz (±3dB)
 
 

HARMONIC DISTORTION

<0.3% 130Hz-20kHz (90dB, 1m)
 
 

MAXIMUM OUTPUT

110dB
 
 

AMPLIFIER POWER

15-180W


NOMINAL IMPEDANCE

8Ohms (min.3.2Ohms)

 

DRIVE UNITS

Uni-Q Driver Array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium cone
Bass Driver:
LF: 165mm (6.5in.) hybrid aluminium
 
 

FINISHES

Black Gloss / White Gloss / Walnut

We have updated our Doug Brady Hi Fi website, which now provides you with automatic real-time stock updates. We believe in an honest approach when displaying the availability of products. When viewing a product listing page, you'll see one of the following stock indicators. 

Stock Information : This item is in stock

This item is brand new and guaranteed in stock from our shop stock or our off site warehouse.

Our shop stock will be dispatched same day including on a Saturday if ordered before 3:00pm or the next working day if ordered after 3:00pm. 

Stock being dispatched from our off site warehouse may take a day longer for you to receive. We may also dispatched directly from the manufacturer or distributor. This is often the case for particularly large or heavy items where specialized service is required. For anything which can take time to get to you, we'll contact you quickly.

In Stock - Free Next Day Delivery*

See our delivery information sheet here

For stock information please call..

Availably to order. Occasionally, due to stock demand, we can sell out. We either have this on order with stock due in or we do not usually have back up stock of this item in store. When you make a purchase, we will inform you quickly when the item is due in from the manufacturer and deliver as soon as it arrives with us. Usually this is only a short wait of 3 - 5 days, we will contact you with a estimated delivery time.

Sold Out

This item is currently sold out with the supplier or manufacturer please call us so we can give you an estimated time. 01925 828009 

In Stock - Free Next Day Delivery*

Free next working day delivery when you spend over £50. We will send you a tracking number where DPD will give a one hour delivery window. Services available Monday to Friday (excluding public holidays) to most mainland UK addresses for in stock items ordered before our cut-off time at 3pm. Terms apply.

Free Saturday delivery when you spend over £500. We will send you a tracking number where DPD will give a one hour delivery window. Services available to most mainland UK addresses for in stock items ordered before our cut-off time on Friday 3pm. Terms apply.

* Excludes CLICK & COLLECT items  Some of our manufactures request for there items not to be sold on line for these items our delivery service may not be available in curtain locations so please call to order 01925 828009

Christmas and New Year Deliveries - (subject to stock availability)

Our last order cut-off time for delivery before Christmas is 12pm on Thursday 23rd December, which will be delivered on Friday 24th December.

Our last order cut-off time for delivery before New Year is 12pm on Thursday 30th December, which will be delivered on Friday 31st December.

Order Date (before the 12pm cut-off time for same day dispatch) Expected Delivery Date
Monday 20th December Tuesday 22nd December
Tuesday 21st December Wednesday 23rd December
Wednesday 22nd December Thursday 24th December
Thursday 23rd December Friday 30th December
Friday 24th December to Tuesday 29th December Wednesday 29th December
Wednesday 29th December Thursday 30th December
Thursday 30th December Friday 31st December
Friday 31st January to Monday 3rd January Wednesday 5th January☨
Normal delivery service resumes from then on.

 

Delivery Costs

Standard next day delivery is free for all orders to most UK mainland addresses. All other delivery prices are determined by the destination, the service chosen and the value and weight of your order. Addresses in the Scottish Highlands, offshore, Northern Ireland & Ireland may incur additional delivery costs, depending on the items ordered. Prices are calculated at the checkout for all services and destinations.

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