Since its launch in 2020, the Wharfedale DIAMOND 12 Series has received widespread praise as a standard for performance and value in affordable hi-fi speakers. After over five years of consistent success, awards, and positive reviews from audio enthusiasts and critics alike, the DIAMOND 12 Series has established itself as one of the most enduring and best-selling speaker series.

Now, Wharfedale is excited to introduce the updated DIAMOND 12i Series. This new series features luxurious, modern finishes and subtle acoustic improvements that build on the strong foundation of the original design.

• Model – DIAMOND 12.Ci
• General Description – 2-way centre speaker
• Enclosure Type – closed-box system
• Transducer Complement – 2-way
• Bass Driver – 5″ (130mm) advanced PP Cone x2
• Treble Driver – 1″ (25mm) Textile Dome
• 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
• Cabinet Volume (in litres) – 8.7L
• Dimensions ( H x W x D )- 180 x 480 x (180+28)mm
• Net Weight – 8.5kg/pcs

Known for quality, affordability, and exceptional build quality, the Wharfedale Diamond series has always prioritised fit and finish. The new luxurious finishes enhance the loudspeaker’s premium look and feel, matching its impressive sound performance.

A thorough port design effort led by Wharfedale’s Director of Acoustic Design, Peter Comeau, and senior engineers Dan Bailey Ornellas and Oliver Davies aimed to refine low-frequency performance through extensive empirical testing and listening evaluations. The development process lasted several months and included advanced techniques, such as laser interferometry, extensive anechoic and in-room measurements, and computational fluid dynamics (CFD) to assess airflow and pressure in the port structure. Critical listening sessions—totalling hundreds of hours—were held to confirm the results. The outcome is a bass response that is better controlled and more articulate, with improved transitions between low and mid frequencies and consistent spatial performance, no matter the placement. These changes maintain the DIAMOND 12’s signature neutrality while subtly increasing listener engagement and dynamic flow.

The DIAMOND 12i mid/bass driver cones remain unchanged and 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, delivering natural, expressive dynamics and precise transient response.

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