Wharfedale Diamond 12.4 Speakers

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Priced from $1,979.00 (Normally Regular Price $2,199.00 )

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Clean-Sheet High-Tech Design With Extra Solid Construction And High Level of Detail And Finish Delivers Exceptional Depth & Clarity

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About The Wharfedale Diamond 12.4 Speakers

The Wharfedale Diamond 12.4 is the big daddy floorstanding speaker in the 12 Series range, and it’s the one you want if you’re after the Diamond 12 with all the gifts. With the dramatic clean-sheet redesign of the Diamond 12 range, spearheaded by world-renowned speaker designer Karl-Heinz Fink, Wharfedale have again raised the bar for what affordable audiophile quality speakers can achieve. Considering the ample performance on offer, you will have to agree with everyone that these Wharfedale Diamond 12.4 floorstanding speakers are absolutely fantastic value for money.

The Wharfedale Diamond 12.4 ups the ante in every way over the already excellent 12.3. It’s still a 2.5 way, 3 speaker design but it features the larger drivers and this changes the sonic landscape substantially. It will appeal to those who want generous depth and body in their sound and also have a bit of space to house a medium sized floorstanding speaker that just wants to play. The Diamond 12.4 employs a smooth & clear sounding 25mm (1") textile dome tweeter and a kick-ass 165mm (6.5") mid/bass driver, together with a second 165mm driver dedicated to producing punchy bass that are constructed of a new material called Klarity which combines traditional polypropylene with mica for added strength and a level of clarity and energy that is pure pleasure to listen to.

Wharfedale Diamond 12.4 Speakers

Developed in Cambridgeshire, England since 1982, Wharfedale’s famous Diamond speakers have served as the classic entry point to true high-fidelity sound, their exceptional sonic value for money earning numerous ‘product of the year’ accolades in the UK and around the world. With the introduction of the Diamond 12 Series, Wharfedale once again raises the bar for affordable, high-performance loudspeakers.

Meet The Designer: Early on, Wharfedale determined that the Diamond 12 Series should be an opportunity to start afresh. So they made the decision to collaborate with world-renowned speaker designer Karl-Heinz Fink, whose track record of delivering class-leading sound from modestly priced speakers, including designs for Tannoy, Mission, Naim, and Q-Acoustics is exceptional. A challenge was issued to Mr Fink: how much sonic performance can you wring from a range of speakers at classic Diamond price points? And so, he and Wharfedale’s team set to work, delivering clean-sheet designs without a single element carried over from the outgoing Diamond 11 Series.We also believe that with the entire Diamond 12 Series, he and Wharfedale’s team of acoustic engineers have achieved a new entry-level benchmark that will worry a lot of other brands.

New Klarity Driver – The Difference Is Clear: Since the Diamond 8 Series in 2001, Wharfedale has made the mid/bass cones for every Diamond generation from Kevlar. 19 years and many award-wining ranges later, Wharfedale has developed a new composite called Klarity. The chief ingredient of Klarity is polypropylene, a material that has been used to make speaker cones since the BBC researched its use for this purpose in the 1970s. Polypropylene cones are renowned for their characteristically low distortion and controlled ‘breakup’, as well as their resistance to moisture in the air. They also have a reputation in some quarters for sounding a little ‘unexciting’ – a perception that is largely the result of mediocre engineering. When designed and implemented optimally, polypropylene cones can sound enthralling.

To make Klarity, Wharfedale adds mica to the formulation. This increases stiffness compared to polypropylene alone, reducing flexing and enabling a lightweight cone with high rigidity, low colouration and lightning-fast response – ideal characteristics to deliver both accuracy and excitement.

Mid/Bass Drivers – Attention To Detail: Polypropylene speaker cones are often combined with high-damping surrounds to achieve a smooth response curve. However, the hysteresis of these surrounds can restrict dynamics and make bass sound somewhat ‘soft’. For the Diamond 12 Series, the aim was to combine the Klarity cone with a low-damping surround, thereby achieving both low colouration and expressive dynamics. This was not a simple task but, by simulating many different cone shapes and adding ribs to provide further stiffening, a flat response curve was achieved without resorting to a high-damping surround, thereby striking the ideal balance.

The Klarity diaphragms are driven by a substantial, precision-made magnet system with an aluminium compensation ring to minimise the effect of variations in inductance as the voice coil travels. This contributes to an absence of distortion and intermodulation generated by the motor system. The voice coil is wound on a high-power epoxy/glass fibre bobbin – highly unusual in speakers at this price level. This has the advantage of not adding eddy currents and delivering greater power handling than an aluminium bobbin, whilst also being much stiffer than the Kapton type.

Refined Tweeter & Crossover: The Diamond 12 Series’ treble unit sports a 25mm dome made from a woven polyester film with a high-loss coating to deliver open and smoothly extended high frequencies. The magnet system and the front plate have been optimised for wide dispersion and uncompressed behaviour. The front plate is flat and exposes the dome as much as possible, with a short duct to balance the acoustic load and improve the SPL (sound pressure level) measurement.

The treble unit combines seamlessly with the mid/bass driver via a crossover network using an acoustic LKR 24dB topology. This includes air core inductors of the type more commonly found in high-end speakers, selected because they produce the lowest distortion of all inductor types. As the resistance of the coil is higher than a standard laminated steel or ferrite core inductor, the magnetic structure of the mid/bass driver has been modified to compensate, resulting in fast, clean bass with no distortion from the inductor.

Carefully Crafted Cabinet Construction: The cabinet is a critical part of any high-performance loudspeaker. At entry-level price points, corners are often cut to constrain cost, but this is a mistake; no matter how good the drive units, their performance will be wasted if the cabinet’s construction is suboptimal. For this reason, Diamond Series 12.4 speakers feature 22.4kg cabinets constructed with a level of sophistication usually reserved for much more expensive designs. Solid? You betcha!

Rear Port: The rear-ported enclosure of each model is precisely sized so that the internal volume works in harmony with the drive unit system to deliver the desired sonic result. The cabinet walls are made from sections of wood fibreboard of varying thickness, constructed in such a way as to subdue the identifiable characteristics of the cabinet’s ‘sound’ and ensure the drivers’ output remains unsullied. The resonant properties of each element – even the glue – were considered to determine the ideal combination of materials and placement. Inside the cabinet, Intelligent Spot Bracing connects opposing walls with a specific form of wood brace to achieve optimal reduction of cabinet resonance. These braces are precisely modelled by computer simulation to improve upon the commonplace ‘figure of eight’ brace, which can have the effect of transferring resonance from one wall to another.

About Wharfedale

Wharfedale Wireless Works was founded by Gilbert Briggs in 1932, soon after he built his very first loudspeaker in the cellar of his home in Ilkley, Yorkshire. This sleepy little market town was located in the valley of the river “Wharfe” – an area known to this day as ‘Wharfedale’. This unlikely location would see the birth of a brand that has become recognized all over the world, synonymous with quality in high-fidelity reproduction.

In 1981 the first Wharfedale Diamond speaker was born. The rather unassuming small box took the industry by storm. Small cabinets and the stiff, yet light polypropylene driver meant a very fast, tight sound and compact, accurate two-way drivers produced a fantastic stereo image. It quickly became a best seller and the Diamond range has continued to this day as a staple in the Wharfedale catalogue.

Now, with more than 75 years of setting the standards in perfecting loudspeaker performance, Wharfedale, in order to remain at the forefront of audio, has dedicated 1.5 million square feet to design & manufacturing in which every single product and process takes place in-house. With this ability to control every single part of the process, Wharfedale’s speakers achieve a harmony in performance and design rarely seen elsewhere.

Our Take On The Wharfedale Diamond 12.4 Speakers

The Wharfedale Diamond 12.4’s have it all but they’re not in the habit of showing it off.  Somehow, they come across as completely civilised and well balanced even when there’s obviously a fair bit of animal straining to get off the leash. They will happily deliver room filling sound all day without once looking like they’re filling your room with speaker. These are, after all, only 1,150mm tall including the substantial spikes and, amazingly, only 200mm wide. A slightly mind-altering set of measurements for loudspeakers this capable. Being a 2.5 way, of course, means that both main drivers get in on the act of delivering bass while the upper driver handles midrange duties as well. This gives the sense of a much bigger sound without the need for a much bigger cabinet. Naturally, they will match perfectly with a well-chosen, music orientated subwoofer such as a REL if you want the benefits of full range sound and a little extra bass.

And let’s remember, there’s a lot of technology packed into these slim cabinets with a smooth sounding 25mm textile dome tweeter employed for the high frequencies, an advanced 165mm Klarity driver handling midrange and bass and another dedicated 165mm Klarity driver whose only job is to provide energetic bass reinforcement down low. And before you ask, the 12.4's and all the 12 Series speakers have first-class speaker wire connectors that will accept heavy-duty bare wire and banana plugs. You may even want to consider bi-wiring which is also an option and if music is the major beneficiary of your investment, could just extract that little bit of extra detail. Immaculately styled in a range of contemporary finishes, these good looking floorstanding speakers sound wonderful, while looking like they totally belong in even the most desirable home.

Main Features & Specifications

  • Design: 2.5-way 3-driver floorstanding speaker
  • Enclosure Type: Bass reflex
  • Mid/Bass Driver: 1 x 165mm (6.5") advanced polypropylene cone
  • Bass Driver: 1 x 165mm (6.5") advanced polypropylene cone
  • High Frequency Driver: 1 x 25mm (1") Textile Dome tweeter
  • Sensitivity (2.83V @ 1m): 89dB
  • Recommended Amplifier Power: 30-200 Watts - must be 'clean' power
  • Peak SPL: 102dB
  • Nominal Impedance: 8 Ohms Compatible
  • Minimum Impedance: 5 Ohms
  • Frequency Response (+/-3dB): 40Hz ~ 20kHz
  • Bass Extension(-6dB): 35Hz
  • Crossover Frequency: 2.1kHz
  • Cabinet Volume (in litres): 40.8L
  • Floor Spikes: Included
  • Speaker Wire Terminals: Will accept bare wire and banana plugs
  • Bi-Wire Capability: Yes
  • Available Finishes: Black, White, Walnut or Light Oak
  • Dimensions (WxHxD): 200 x 1,150 x 350mm
  • Weight: 22.4kg each
  • Manufacturers Warranty: 5 Years. This protects the original purchaser against manufacturing defects but not abuse.

 Note: Features and Specifications Subject To Change Without Notice. E&OE.

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