Short answer: the KEF R3 Meta if sound quality matters most, the Ascend Acoustics CBM-170 SE2 if price matters most. The KEF R3 Meta ranks #10 of 222 bookshelf speakers, rated 4.6/5, at $2,499.99. The Ascend Acoustics CBM-170 SE2 ranks #113, rated 3.8/5, at $468, $2,031.99 cheaper.
The KEF R3 Meta is the better-sounding choice. A three way bookshelf speaker with KEF’s coaxial driver, superb accuracy that holds across the room, and bass that reaches deep for its size. The catch: Pointed straight on-axis, there’s a 1-2dB bump around 9kHz that stays consistent across angles thanks to the constant-directivity waveguide: only toeing the speaker out about 10° tames it.
Why pick the Ascend Acoustics CBM-170 SE2: Compact two-way bookshelf speakers with a SEAS tweeter, a very flat midrange and smooth sound that suits most rooms. The tradeoff: A narrow dip in the on-axis and listening-window response appears in the 3-5kHz range (down to about -2.7dB), mirrored by a matching dip in the directivity index at the same frequencies: likely a brief widening of dispersion right at the tweeter/woofer crossover.
Buy the KEF R3 Meta if sound quality is the priority over the price, or the Ascend Acoustics CBM-170 SE2 if the price is the priority over sound quality.
Want more options? Browse the full Passive Home rankings.
A three way bookshelf speaker with KEF’s coaxial driver, superb accuracy that holds across the room, and bass that reaches deep for its size.
Compact two-way bookshelf speakers with a SEAS tweeter, a very flat midrange and smooth sound that suits most rooms.
Prices on this page were last checked October 31, 2026 at 7:11 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
| KEF R3 Meta | Ascend Acoustics CBM-170 SE2 | |
|---|---|---|
| Price | $2,499.99 per pair | $468 per pair |
| Ranked | #10 of 222 in Large Size Bookshelf Speakers | #113 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 37Hz (measured, Erin’s Audio Corner) | 50Hz (measured, manufacturer spinorama data) |
| Bass Extension (-3dB) | 76Hz (measured, Erin’s Audio Corner) | 70Hz (measured, manufacturer spinorama data) |
| Dimensions | 16.6”H x 7.9”W x 13.2”D (421.6 x 200.7 x 335.3 mm) | 12H x 9W x 9.5D in |
| Impedance | 4 ohms nominal (3.2 ohms minimum above 80Hz, measured, Erin’s Audio Corner) | 8 ohms |
| Drivers | 6.5” Hybrid aluminum ported woofer, 5” aluminum cone midrange, 1” vented aluminium dome with MAT tweeter | 27mm custom SEAS soft dome tweeter, 6.5” proprietary composite polygel cone woofer |
| Sensitivity | 85.9dB (measured, Erin’s Audio Corner; 87dB manufacturer specified) | 86.8dB (2.83V/1m, measured, manufacturer spinorama data; 87dB manufacturer specified) |
| Weight | 27.3 lbs (12.4 kg) each | 15 lbs (6.8 kg) each |
| Woofer Cabinet | ported | ported, rear |
| Spinorama Preference Score | 6.10 | 6.30 |
| Spinorama Preference Score with Perfect Sub | 7.91 | 8.66 |
| DIY Kit | No | No |
| Power Handling | - | 200W continuous, 400W peak |
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