Wharfedale Diamond 12.1 Bookshelf Speakers

Presenting the Wharfedale Diamond 12.1 - Last pair in Light Oak and White

The true all-rounder  

Wharfedale DIAMOND 12.1 is a traditional standmount (or bookshelf) speaker that embodies the history and performance values of the Wharfedale DIAMOND series.

The perfect affordable hi-fi speaker, the DIAMOND 12.1 offers the best of both worlds compact size with power and detail.

Perfect for 2-channel hi-fi systems, thanks to its intricate performance but also compact and capable for immersive home theatre, the DIAMOND 12.1 is designed and certified to perform, regardless of room size and application.

The DIAMOND 12.1 features a high-performance 130mm (5) KlarityTM driver for exceptional timing and refined bass. The superb 25mm (1) woven polyester dome tweeter delivers open and smoothly extended high frequencies.

Klarity aords focus

NEW Klarity cone material, formulated from a blend of Polypropylene and mica adds stffness to reduce flexing, enabling a lightweight cone with high rigidity, low colouration and lightning-fast response.

Low colour and expression

The Klarity cone isfitted with a low-damping surround, thereby achieving both low colouration and expressive dynamics. By simulating many dfferent cone shapes and adding ribs to provide further stffening, a flat response curve was achieved without resorting to a high-damping surround, thereby striking the ideal balance.

A magnet of forces

A 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.

A voice coil beyond this class

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 associated with this price-class.

DIAMOND highs

The 25mm dome is 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 isflat and exposes the dome as much as possible; only a very short duct on the front plate balances the acoustic load and improves the SPL (sound pressure level) measurement.

A crossover of style

The crossover network uses 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.

Firm and fair

The DIAMONDs rear-ported enclosure is precisely sized so that the internal volume works in harmony with the drive unit system to deliver the desired sonic result. A multi-layered sandwich design subdues the identfiable characteristics of the cabinets sound. Even the resonant properties of the glue between the layers was measured to determine the optimum combination.

Brace yourself

Inside the cabinet, Intelligent Spot Bracing connects opposite walls with a specfic form of the wood brace to achieve an optimal reduction of cabinet resonance. These braces are precisely modelled by computer simulation to improve upon the commonplace figure of eight brace, which may simply transfer resonance from one wall to another. 

Technical Specifications 
Model
Diamond 12.1
General description
2-way bookshelf speaker
Design philosophy and core technology
Enclosure type
Bass reflex
Transducer complement
2-way
ABR
Bass driver
5" (130mm) advanced PP cone
Midrange driver
Treble driver
1" (25mm) textile dome
Full-range driver
AV shield
No
Sensitivity (2.83V @ 1m)
88dB
Recommended amplifier power
20100W
Peak power handling
Peak SPL
96dB
Nominal impedance
8 compatible
Minimum impedance
4.0
Frequency response (±3dB)
65Hz 20kHz
Bass extension (-6dB)
60Hz
Crossover frequency
2.6kHz
Cabinet volume
8.2L
Dimensions (H x W x D)
312 x 180 x (250 + 28) mm
Net weight
6.8 kg per speaker
*This information has been obtained from Manufacturers website. We advise that Price, Features & Specifications are subject change without notice.

E&OE