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Wharfedale DIAMOND121 WP

Wharfedale Diamond 12.1 | DIAMOND121 WP | 100w 2 Way Black Bookshelf Speakers

The true all-rounder, the Wharfedale DIAMOND 12.1 is a traditional standmount (or bookshelf) speaker that embodies the history and performance values of the Wharfedale DIAMOND series.

Black Bookshelf Speaker Wharfdale deliver high standard of both looks and performance expected.


  • 2-way Bookshelf speaker

    Enclosure type reflex box

    Transducer complement 2-way

    Bass driver 125mm Bass x 1

    Treble driver 25mm Soft Dome

    AV shield Yes

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Product Code:
DIAMOND121 WP

Product description

Wharfedale Diamond 12.1
The true all-rounder, the 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.

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

Low colour and expression
The Klarity™ cone is fitted with a low-damping surround, thereby achieving both low colouration and expressive dynamics. 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.

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 is flat 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 DIAMOND 12.1 ’s 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 identifiable characteristics of the cabinet’s ‘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 specific 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.

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Tech Specification

  • 2-way bookshelf speaker
  • Enclosure typebass reflex
  • Transducer complement2-way
  • Bass driver5"(130mm) advanced PP Cone
  • Treble driver1"(25mm) Textile Dome
  • AV shieldNo
  • Sensitivity(2.83V @ 1m)88dB
  • Recommended amplifier power20-100W
  • Peak SPL96dB
  • Nominal impedance8Ω Compatible
  • Minimum impedance4.0Ω
  • Frequency response(+/-3dB)65Hz ~ 20kHz
  • Bass extension(-6dB)60Hz
  • Crossover frequency2.6kHz
  • Cabinet Volume (in litres)8.2L
  • Dimensions ( H x W x D )312 x 180mm x (250+28) mm
  • Net weight6.8kg/pcs
    • Weight
      1.5 kgs
    • SKU
      DIAMOND121 WP
  • Sensitivity
    (2.83V lm) 86dB
  • Recommended amplifier power
    20-100W
  • Peak SPL
    95dB
  • Nominal impedance
    6Ω
  • Minimum impedance
    4.1Ω
  • Frequency response
    (+/-3dB) 50Hz 20kHz
  • Bass extension
    (-6dB) 45Hz
  • Crossover frequency
    2.3kHz
  • Dimensions
    (H X W x D) 315 X 174 X 227 (mm)
  • Manufacturers
    • Manufacturer
      Wharfedale