Short answer: pick the Ascend Acoustics HTM-200SE2 if you want sound quality that has been measured and ranked; the Wharfedale Diamond 12.1i is unmeasured so far, so its case rests on features and price.
The case for the Wharfedale Diamond 12.1i: 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.
On the Ascend Acoustics HTM-200SE2 side: High-quality manufacturer NFS data shows 0.385dB on-axis average absolute deviation, 0.428 listening-window smoothness, and unusually even 80-degree dispersion in both planes.
On paper: The Wharfedale Diamond 12.1i is more sensitive, 88dB against 86dB, so it needs less amplifier power to play loud.
Price: the Wharfedale Diamond 12.1i lists at $499 and the Ascend Acoustics HTM-200SE2 at $368.
Buy the Ascend Acoustics HTM-200SE2 if you want a speaker whose sound quality has been measured and ranked.
Buy the Wharfedale Diamond 12.1i if you want higher sensitivity, and you can wait for measurements to confirm how it sounds.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Wharfedale Diamond 12.1i | Ascend Acoustics HTM-200SE2 | |
|---|---|---|
| Price | $499 per pair | $368 per pair |
| Ranked | - | #7 of 88 in Medium Size Bookshelf Speakers |
| Drivers | 5” Klarity polypropylene cone woofer, 1” woven polyester dome tweeter | Two 4-inch woofers; soft-dome tweeter |
| Frequency Response | 65Hz - 20kHz ±3dB, 60Hz -6dB (Manufacturer specified) | - |
| Sensitivity | 88dB (2.83V/1m, manufacturer specified) | 86.0dB (manufacturer specified); 85.2dB (measured, spinorama.org) |
| Impedance | 8 ohms nominal (4 ohms minimum) | 8 ohms nominal |
| Power Handling | 20-100W | - |
| Crossover Frequency | 2.6kHz | - |
| Woofer Cabinet | ported, rear | - |
| Dimensions | 312H x 180W x 278D mm | 11”H x 6.5”W x 6.4”D (279 x 165 x 162 mm) |
| Weight | 6.8 kg each | 9.9 lbs (4.5 kg) each |
| Bass Extension (-3dB) | - | 87.9Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | - | approximately 56Hz (measured, spinorama.org) |
| Enclosure | - | Sealed |
| Spinorama Preference Score | - | 4.98 |
| Spinorama Preference Score with Perfect Sub | - | 7.90 |
| DIY Kit | - | No |
Prices on this page were last checked September 29, 2026 at 3:43 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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The Two Speakers In Full
Wharfedale Diamond 12.1i: $499 per pair Music Direct eBay
Older models: the Wharfedale Diamond 12.1 (rated 3.9/5), the Wharfedale Diamond 220 (rated 3.7/5) and the Wharfedale Diamond 9.1 (rated 2.8/5).
Pros: 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 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.
Full Wharfedale Diamond 12.1i review and specifications →
| Crossover Frequency | 2.6kHz |
|---|---|
| Dimensions | 312H x 180W x 278D mm |
| Drivers | 5” Klarity polypropylene cone woofer, 1” woven polyester dome tweeter |
| Frequency Response | 65Hz - 20kHz ±3dB, 60Hz -6dB (Manufacturer specified) |
| Impedance | 8 ohms nominal (4 ohms minimum) |
| Power Handling | 20-100W |
| Sensitivity | 88dB (2.83V/1m, manufacturer specified) |
| Weight | 6.8 kg each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- These figures are manufacturer-specified rather than independently measured.
- Head-to-Head Comparisons
Ascend Acoustics HTM-200SE2: $368 per pair Ascend Acoustics eBay
Pros: High-quality manufacturer NFS data shows 0.385dB on-axis average absolute deviation, 0.428 listening-window smoothness, and unusually even 80-degree dispersion in both planes. The compact sealed cabinet is easy to place, while the preference score reaches 7.90 with a subwoofer. Measured bass extension of 87.9Hz (-3dB), with a measured sensitivity of 86.0dB.
Cons: Limited bass is the main tradeoff, measuring 87.9Hz at -3dB, 71.8Hz at -6dB, and 51.3Hz at -12dB; its preference score falls to 4.98 without a subwoofer. The 3.62 sound-power directivity-index standard deviation is respectable rather than exceptional, and the small woofers limit deep-bass output.
Full Ascend Acoustics HTM-200SE2 review and specifications →
| Bass Extension (-10dB) | approximately 56Hz (measured, spinorama.org) |
|---|---|
| Bass Extension (-3dB) | 87.9Hz (measured, spinorama.org) |
| DIY Kit | No |
| Dimensions | 11”H x 6.5”W x 6.4”D (279 x 165 x 162 mm) |
| Drivers | Two 4-inch woofers; soft-dome tweeter |
| Enclosure | Sealed |
| Impedance | 8 ohms nominal |
| Sensitivity | 86.0dB (manufacturer specified); 85.2dB (measured, spinorama.org) |
| Spinorama Preference Score | 4.98 |
| Spinorama Preference Score with Perfect Sub | 7.90 |
| Weight | 9.9 lbs (4.5 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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