Short answer: the KEF R3 Meta for better sound quality, the Ascend Acoustics CMT-340 SE2 for the lower price. The KEF R3 Meta ranks #10 of 222 bookshelf speakers, rated 4.6/5, at $2,499.99. The Ascend Acoustics CMT-340 SE2 ranks #24, rated 4.4/5, at $798, $1,701.99 cheaper.
The KEF R3 Meta is the more accurate 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. Its measured preference score, a predictor of how neutral it sounds, is 6.10 against 5.33 for the Ascend Acoustics CMT-340 SE2. 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.
What the Ascend Acoustics CMT-340 SE2 does well: A dual woofer bookshelf speaker with accurate sound, high sensitivity, and lots of clean output, a superb partner for a subwoofer at a modest price. Watch for: Bass rolls off early for the cabinet size, measuring 77.6Hz at -3dB, 64.5Hz at -6dB, and 48.3Hz at -12dB; the preference score without a subwoofer is only 5.33.
Buy the KEF R3 Meta if sound quality is the priority over the price, or the Ascend Acoustics CMT-340 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.
A dual woofer bookshelf speaker with accurate sound, high sensitivity, and lots of clean output, a superb partner for a subwoofer at a modest price.
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 CMT-340 SE2 | |
|---|---|---|
| Price | $2,499.99 per pair | $798 per pair |
| Ranked | #10 of 222 in Large Size Bookshelf Speakers | #24 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 37Hz (measured, Erin’s Audio Corner) | approximately 53Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 76Hz (measured, Erin’s Audio Corner) | 77.6Hz (measured, spinorama.org) |
| Dimensions | 16.6”H x 7.9”W x 13.2”D (421.6 x 200.7 x 335.3 mm) | 21 x 7.5 x 10.5 in each |
| Impedance | 4 ohms nominal (3.2 ohms minimum above 80Hz, measured, Erin’s Audio Corner) | 8 ohms nominal |
| Drivers | 6.5” Hybrid aluminum ported woofer, 5” aluminum cone midrange, 1” vented aluminium dome with MAT tweeter | Two 6.5-inch woofers; 27mm soft-dome tweeter |
| Sensitivity | 85.9dB (measured, Erin’s Audio Corner; 87dB manufacturer specified) | 92dB at 2.83V/1m anechoic |
| Weight | 27.3 lbs (12.4 kg) each | 29.1 lbs (13.2 kg) each |
| Woofer Cabinet | ported | - |
| Spinorama Preference Score | 6.10 | 5.33 |
| Spinorama Preference Score with Perfect Sub | 7.91 | 7.99 |
| DIY Kit | No | No |
| Power Handling | - | 240W continuous; 400W short-term peak |
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