Wharfedale Diamond 225

Enclosure type: Bass reflex
Transducer complement: 2-way
Bass driver: 165mm Woven Kevlar Cone
Treble driver: 25mm Soft Dome
AV shield: No
Sensitivity(2.83V @ 1m): 87dB
Recommended amplifier power: 25-120W
Peak SPL: 96dB
Nominal impedance: 8Ω Compatible
Minimum impedance: 4.2Ω
Frequency response (+/-3dB): 45Hz ~ 20kHz
Bass extension (-6dB): 40Hz
Crossover frequency: 2.3kHz
Cabinet Volume (in litres): 10.3L
Dimensions: 355mm x 196mm x 290mm
Net weight: 6.5kg/pcs

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Wharfedale Diamond 225

The Wharfedale Diamond 225 is one of our most successful speaker series, if not one of the most successful hi-fi speaker series ever. Certainly we can justify this as year on year, the Diamond Series has broken the mold for combining award-winning sound quality unforeseen at this price.


Wharfedale’s Diamond series has a long history of achievement. The first Diamond was born in 1982 in the form of a rear
ported hi-fi speaker. A combination of a 19mm dome tweeter, 120mm long throw polypropylene bass/mid driver and
a simple yet highly effective crossover in a compact hi-fi speaker took the industry by storm.

The speaker produced an impeccable stereo image. Therefore it quickly became a best seller and a permanent fixture in the Wharfedale product range. Since
then, every Wharfedale Diamond Series has been a best-seller.

From 1982 Wharfedale Diamond has meant one thing – impeccable performance at an affordable price. Of course today we are
pleased to bring you the latest series of loudspeakers from Wharfedale that aspires to this tradition – Diamond 200.

Diamond Re-Engineered

The Diamond 225 boasts the latest in hi-fi technology. Above all they produce a thoroughly enjoyable listening experience. Above all
in the design criteria for Diamond 225 is the ongoing research into loudspeaker driver sound quality.

The Diamond Series utilizes our famous woven Kevlar® cone drawing influence from the flagship Jade Series. Semi-elliptical ‘break-up’
areas on the Kevlar® woofer smooth the response through the audible range. A unique diamond molding treats the cone edges.

For Diamond 200 series Wharfedale’s engineers have refined and updated this design. As a result the drive unit motor systems have
been redefined with more power for greater efficiency.  For instance, larger magnets  on the Diamond 220 create a greater
sensitivity compared with previous loudspeakers.

The treble unit uses a sheer fabric dome and advanced ferrite magnet system, surrounded by a carefully crafted wave
guide that encourages outstanding midrange performance too.

Improved Cabinet Construction

Cabinet materials have taken a leaf out of the research that resulted in the advanced Jade series. New, lacquered front baffles and cosmetically enhanced veneers improve cabinet appearance.

Secondly, cabinet walls and internal bracing are developed using Wharfedale’s latest ‘Virtual Speaker’ software. Delayed Cumulative Spectral Analysis ruthlessly reveals panel coloration in all its forms. Consequently using this technique Wharfedale engineers updated the cabinet. They combine layers of particle board and MDF to damp annoying High-Q resonances and block internal sound leakage.

The cabinet walls now ‘Noise’ from cabinet walls is buried more than 35dB below the driver output. The same computer modeling also assists in fine tuning the crossover.
It also ensures the Wharfedale Diamond 225 projects both on and off-axis for an enjoyable, room-filling experience.

Slot-loaded Distributed Port

The reflex port exits at the base of the speaker cabinet. It loads a slot created by the plinth. This equalizes the air pressure to mimic that inside the cabinet allowing smooth transition between the pressure variation in the cabinet and the low frequency sound developed in the room.

Tuned For Your Living Room

Hundreds of hours of listening tests have resulted in refinements to the crossover systems.  The result is greater attack, dynamics and musical enjoyment in conjunction with the neutrality and startling realism that is a Wharfedale tradition. Computer modeling is a valuable tool in modern loudspeaker production. However it is a combination of our engineers experience and passion for music that results in such an enjoyable loudspeaker.

The Search For Perfection

The acoustic performance is evaluated over a period of weeks in Wharfedale’s five listening rooms. The kinds of domestic environments the Wharfedale Diamond 225 speakers are likely to be used in are mimicked. When the acoustic tests are truly satisfying, the loudspeaker designs signed-off for production. As a result, this ensures that each speaker model fulfills its eventual owner’s dreams of musically enjoyable reproduction from Britain’s Most Famous Loudspeakers.

Additional information