Wharfedale Diamond 12.1i Review: Rated 4.0/5

Last updated: October 21, 2026

The Wharfedale Diamond 12.1i is rated 4/5 for sound quality, #26 of 179 Medium Size Bookshelf Speakers on an estimated rating, since it has not been measured or compared side by side yet. See all Passive Home rankings for every top pick.

Prices on this page were last checked November 7, 2026 at 7:34 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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Brand: Wharfedale

#26 Wharfedale Diamond 12.1i: $499 per pair Music Direct $499 eBay

Older models: the Wharfedale Diamond 12.1 (ranked lower, rated 3.9/5), the Wharfedale Diamond 220 (ranked lower, rated 3.7/5), the Wharfedale Diamond 11.1 (ranked lower, estimated 3.7/5), the Wharfedale Diamond 10.1 (estimated 3.3/5) and the Wharfedale Diamond 9.1 (rated 2.8/5). See every Wharfedale Diamond generation.

Same family: the Wharfedale Diamond 12.0i (smaller bookshelf, ranked lower, estimated 3.2/5), the Wharfedale Diamond 12.3i (smaller floorstanding, estimated 4/5), the Wharfedale Diamond 12.4i (larger floorstanding, estimated 4.2/5) and the Wharfedale Diamond 12.Ci (center, estimated 3.6/5).

Pros: Easy to drive two way bookshelf speakers with a polypropylene and mica woofer and a woven dome tweeter, fine with modest amplifiers. Two-way bookshelf with a 5” Klarity polypropylene and mica woofer and a 1” woven polyester dome tweeter, joined by a Linkwitz-Riley crossover at 2.6kHz with air-core inductors. Wharfedale rates it at 88dB sensitivity with an 8 ohm load and a 20W minimum amplifier, easy to drive, and it keeps the price of the Wharfedale Diamond 12.1 it replaces.

Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared with ranked speakers. Rated bass reaches only 60Hz (-6dB), so plan on a subwoofer for full-range listening.

ReleasedFeb 2026 (9 months ago)
Bass Extension (-3dB)65Hz (manufacturer specified)
Crossover Frequency2.6kHz
Dimensions12.3”H x 7.1”W x 10.9”D (312 x 180 x 278 mm)
Drivers5” Klarity polypropylene cone woofer, 1” woven polyester dome tweeter
Frequency Response65Hz - 20kHz ±3dB, 60Hz -6dB (Manufacturer specified)
Impedance8 ohms nominal (4 ohms minimum)
Power Handling20-100W
Sensitivity88dB (2.83V/1m, manufacturer specified)
Weight15 lbs (6.8 kg) each
Woofer Cabinetported, rear

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