A Design Legacy — Now with a Contemporary Edge

The DIAMOND 12 Series raised the bar in its category for sound quality, design, and musical engagement. Today, Wharfedale's in-house team has further developed the series, focusing not on reinventing but on refining and improving.

🎨 Three Beautiful New Finishes

All-Black: A deep, rich semi-matte finish that offers a sleek, contemporary look—subtle and sophisticated.

Classic Walnut with Semi-Matte Black Baffle: A timeless classic reimagined, blending the natural warmth of walnut with a clean, contrasting baffle for a premium appearance.

Stone Grey: A striking modern option that suits minimalist styles and stands out.

🔬 Incremental Acoustic Enhancements

Wharfedale's engineering team revisited the speaker's internals, paying special attention to bass port tuning and airflow control. Small but significant changes to the port design and internal damping have improved bass clarity and low-frequency control—especially in real-world environments.

A thorough port design effort led by Director of Acoustic Design Peter Comeau and senior engineers Dan Bailey Ornellas and Oliver Davies included laser interferometry, extensive anechoic and in-room measurements, and computational fluid dynamics (CFD) to assess airflow and pressure.

⚙️ Klarity™ Cone Technology

The DIAMOND 12.2i mid/bass driver cones are made from Klarity™, a special blend of polypropylene and mica that provides excellent stiffness and low distortion. This results in a cone that is lightweight, well-damped, and very responsive.

A low-damping surround enhances the cone's efficiency and dynamic range, while ribbed shaping ensures a smooth, linear frequency response without added distortion.

🧲 Advanced Magnet Assembly

Each mid/bass driver features a precise magnet system with an aluminium compensation ring to reduce the effects of inductance changes as the voice coil moves. This advanced motor system minimises intermodulation and distortion, producing cleaner, more accurate sound.

The voice coil is wrapped around a high-power epoxy/glass fibre bobbin, offering greater power handling, thermal stability, and structural strength.

🎵 25mm Textile Dome Tweeter

High frequencies are produced by a 25mm woven polyester dome with a high-loss damping coating, resulting in extended, smooth treble response. The front plate is designed acoustically with a flat profile and minimal waveguide to enhance dispersion and output.

Clear, natural high frequencies with excellent off-axis performance.

🔊 High-Quality Crossover Components

Wharfedale's engineers use a sophisticated Linkwitz-Riley crossover design, complete with air-core inductors—components typically found in high-end speakers. The crossover network is finely adjusted for minimal phase shift and smooth integration between drivers.

The magnet structure for the mid/bass driver is modified to address the resistance of these high-quality inductors, ensuring fast, clean bass without compromise.

🏗️ Low-Resonance Cabinet Design

Each enclosure features a multi-layered sandwich construction that reduces panel resonance and distortion. Even the adhesive properties between the layers have been acoustically tested to optimise damping.

Intelligent spot bracing connects opposite cabinet walls using computer-modelled braces that reduce vibration without passing it from one surface to another, contributing to the solid and authoritative sound signature.

📐 Technical Specifications

Speaker Type:
2-way bookshelf speaker

Enclosure Type:
Bass reflex

Bass Driver:
6.5" (150mm) advanced PP Cone

Treble Driver:
1" (25mm) Textile Dome

Sensitivity:
88dB (2.83V @ 1m)

Recommended Power:
20-120W

Peak SPL:
96dB

Nominal Impedance:
8Ω Compatible

Minimum Impedance:
4.0Ω

Frequency Response:
50Hz - 20kHz (+/-3dB)

Bass Extension:
43Hz (-6dB)

Crossover Frequency:
2.0kHz

Cabinet Volume:
11.8L

Dimensions (H×W×D):
335 × 200 × 313mm

Net Weight:
8.2kg/pc

AV Shield:
No

🎵 Perfect for: Bookshelf systems • Home audio • Stereo listening • Music enthusiasts • Modern interiors • Quality-conscious buyers seeking exceptional value