Wharfedale Diamond 12.C Centre Speaker

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Priced from $452.00 (Normally Regular Price $579.00 )

Big Sound from a Compact 3-Driver Centre Channel

Clean-Sheet Design Brings Impressive Musicality & Clarity

Dual 130mm Klarity™ Composite Mid/Bass Drivers With A 25mm Textile Dome Tweeter

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About The Wharfedale Diamond 12.C Centre Speaker

The Wharfedale Diamond 12.C centre channel is the audio visual partner to the Wharfedale Diamond 12 series. It provides the same great midrange clarity and depth that the stereo speakers convey and is the perfect partner for an all Wharfedale home cinema system. With the dramatic clean-sheet redesign of the Diamond 12 range, spearheaded by world-renowned speaker designer Karl-Heinz Fink, Wharfedale have once again raised the bar for what affordable audiophile quality speakers can achieve. At the price, the new Wharfedale Diamond 12.C centre channel is absolutely cracking value for money.

Wharfedale just had to make the Diamond 12.C. What a waste it would have been if they had spent all that time and creative energy on the Diamond 12 stereo speakers and then hung the home theatre enthusiast out to dry. Fortunately, Wharfedale are the good guys and they smiled on all us movie lovers by carefully crafting a matching centre channel that provides a perfect cinema soundstage when used with other Diamond 12 models. The Diamond 12.C employs a clear sounding 1” (25mm) textile dome tweeter and dual advanced 5” (130mm) mid/bass drivers constructed of a new material called Klarity™ which combines traditional polypropylene with mica for added strength and a level of clarity and energy that makes vocals come to life in a very pleasing manner.

Wharfedale Diamond 12.C Centre Channel Speaker

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 all-new Diamond 12 Series, Wharfedale once again raises the bar for affordable, high-performance loudspeakers.

To develop the new range, Wharfedale has collaborated with world-renowned speaker designer Karl-Heinz Fink for the first time. Fink’s track record of delivering class-leading sound from modestly priced speakers, including designs for Tannoy, Mission, Naim, and Q-Acoustics, is exceptional and with the Diamond 12 Series, he and Wharfedale’s team of acoustic engineers have achieved a new entry-level benchmark.

Early on, Wharfedale determined that the Diamond 12 Series should be an opportunity to start afresh. 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.

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 12 Series speakers feature cabinets constructed with a level of sophistication usually reserved for much more expensive designs.

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.

Our Take On The Wharfedale 12.C Centre Speaker

The Diamond 12.C is a nicely judged centre channel that should prove to be a great size proposition for most rooms and cabinets. Naturally, it is the perfect match for the Wharfedale Diamond 12 range of stereo speakers, both bookshelf and floorstanding, with a clarity and richness to the midrange that the other models have in spades. The 12.C uses dual 130mm (5”) Klarity™ drivers for accurate, refined midrange and bass frequencies, while the 25mm (1”) textile dome tweeter delivers open and smoothly extended high frequencies opening up detail and depth for movies, sports and music. Beautifully presented in a range of contemporary finishes, this centre channel really is a home run if you are matching it with the Wharfedale Diamond 12 range but also worthy of your consideration if you have other speakers and want a versatile centre channel to complete a home cinema setup.

Main Features & Specifications

  • Design: 2-way 3-driver centre channel speaker
  • Enclosure Type: Infinite baffle closed box system
  • Mid/Bass Drivers: 2 x 5"(130mm) advanced PP Cone
  • Treble Driver: 1"(25mm) Textile Dome
  • AV Shielding: No
  • Sensitivity (2.83V @ 1m): 90dB
  • Recommended Amplifier Power: 20-120W
  • Peak SPL: 96dB
  • Nominal Impedance: 8Ω Compatible
  • Minimum Impedance: 4.0Ω
  • Frequency Response (+/-3dB): 90Hz ~ 20kHz
  • Bass Extension (-6dB): 80Hz
  • Crossover Frequency: 2.2kHz
  • Cabinet Volume (in litres): 8.7L
  • Available Finishes: Black Ash, Walnut, White or Light Oak
  • Dimensions (WxHxD): 480 x 180 x 180mm
  • Weight: 8.5kg each
  • Manufacturer's Warranty: 5 Years
Note: Features & Specifications Subject To Change Without Notice. E&OE
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