Developed in collaboration with Karl Heinz Fink, one of the most successful speaker designers on the planet, the new Diamond 12.1 has been 5-star approved by What Hi Fi 12.1 is a classic bookcase or stand-up speaker, and is a true all-rounder that embodies the legacy of the Wharfedale Diamond series. This Hi-Fi speaker features a compact housing with power and details. Ideal for 2-K Hi-Fi systems, it is also suitable for immersive home theaters, regardless of room size and application. The new Klarity cone material is a blend of polypropylene and mica that adds stiffness to prevent bending and supports a lightweight cone with high rigidity, reduced coloration, and ultra-fast response. The 25mm woven polyester dome tweeter offers open and smooth extended high frequencies. The back case is so large that the internal volume complements the player system for the desired sound result. A multi-layer sandwich design removes the distinctive features of the suitcase from the cabinet. Even the display properties of glue resonance between layers were measured to identify the top combination. Basically, they seem excellent. With the dimensions of 312mm H x 180mm W x 278mm D, 12.1 diamonds are perfect for bookcases or mounting brackets.