Short answer: the Wharfedale Diamond 12.3i. It ranks #133 of 228 floorstanding speakers by sound quality (rated 4.0/5) at $1,198 and is still sold new; the Wharfedale Diamond 12.3 ranks #141 (rated 3.9/5) and is discontinued, so it is only an option used.
What the Wharfedale Diamond 12.3 does well: A compact, slim tower with twin 5 inch woofers and smooth, refined sound, now discontinued but worth buying used. Watch for: Rating estimated based on Diamond 12 series sibling testing.
Why pick the Wharfedale Diamond 12.3i: An updated slim tower with twin 5 inch woofers that is easy to drive and plays full range in a medium room. The tradeoff: No independent measurements yet, so its tonal balance and directivity can’t be compared with ranked speakers.
Buy the Wharfedale Diamond 12.3i. It is rated higher for sound quality; the Wharfedale Diamond 12.3 is no longer sold new.
About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: Wharfedale Diamond 12.3 3.7 to 4.1; Wharfedale Diamond 12.3i 3.7 to 4.3). Treat this verdict as provisional.
Still deciding? The full Passive Home rankings cover every ranked option.
A compact, slim tower with twin 5 inch woofers and smooth, refined sound, now discontinued but worth buying used.
An updated slim tower with twin 5 inch woofers that is easy to drive and plays full range in a medium room.
Prices on this page were last checked November 2, 2026 at 11:36 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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Specifications Side By Side
| Wharfedale Diamond 12.3 | Wharfedale Diamond 12.3i | |
|---|---|---|
| Price | $999.00 per pair Passive, Discontinued | $1,198 per pair |
| Ranked | #141 of 228 in Large Size Floorstanding Speakers Estimated | #133 of 228 in Large Size Floorstanding Speakers Estimated |
| Bass Extension (-3dB) | 45Hz (manufacturer specified) | 45Hz (manufacturer specified) |
| Crossover Frequency | 2.2kHz | - |
| Dimensions | 38.4” x 7.1” x 13.7” (975 x 180 x 348 mm) | 38.4”H x 7.1”W x 13.7”D (975 x 180 x 348 mm) |
| Drivers | 1” textile soft dome tweeter, two 5” Klarity composite woofers | 1x 1” textile dome tweeter, 2x 5” Klarity woofers |
| Frequency Response | 45Hz - 20kHz (±3dB) | 45Hz - 20kHz (±3dB, manufacturer specified) |
| Impedance | 8 ohms (5.0 ohm minimum) | 8 ohms nominal (manufacturer specified) |
| Passive | Yes | - |
| Sensitivity | 87.5dB (2.83V @ 1m) | 89dB (manufacturer specified) |
| Weight | 43 lbs (19.5 kg) each | 43 lbs (19.5 kg) each |
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