Short answer: the Ascend Acoustics CMT-340 SE2. It ranks #24 of 222 bookshelf speakers by sound quality, rated 4.4/5, at $798. The ELAC Debut 2.0 B6.2 ranks #149, rated 3.5/5, at $329, $469 cheaper, which does not close the gap in sound quality.
The ELAC Debut 2.0 B6.2 is the deeper-bass option. Large bookshelf speakers that play very loud with low distortion and decent bass, a solid budget choice. Its bass reaches about 64Hz before falling 3dB, against 77.6Hz for the Ascend Acoustics CMT-340 SE2. The tradeoff: A good size resonant peak around 700Hz stands out from an otherwise smooth response and lingers in cumulative spectral decay (waterfall) measurements: in one reviewer’s sighted A/B test, reducing it by about 5dB via EQ made a noticeable but not dramatic difference.
The Ascend Acoustics CMT-340 SE2 is the more accurate option. 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. Its measured preference score, a predictor of how neutral it sounds, is 5.33 against 4.75 for the ELAC Debut 2.0 B6.2. The tradeoff: 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 Ascend Acoustics CMT-340 SE2. It is rated higher for sound quality, and saving $469 with the ELAC Debut 2.0 B6.2 does not make up for the sound-quality gap.
Looking for alternatives? See the complete Passive Home rankings.
Large bookshelf speakers that play very loud with low distortion and decent bass, a solid budget choice.
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
| ELAC Debut 2.0 B6.2 | Ascend Acoustics CMT-340 SE2 | |
|---|---|---|
| Price | $329.00 per pair | $798 per pair |
| Ranked | #149 of 222 in Large Size Bookshelf Speakers | #24 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 40Hz (measured, Erin’s Audio Corner) | approximately 53Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 64Hz (measured, Erin’s Audio Corner) | 77.6Hz (measured, spinorama.org) |
| Impedance | 6 ohms nominal, 5.2 ohms minimum (measured, Erin’s Audio Corner) | 8 ohms nominal |
| Sensitivity | 86.5dB (measured, Audio Science Review) | 92dB at 2.83V/1m anechoic |
| Drivers | 25mm tweeter + 165mm woofer | Two 6.5-inch woofers; 27mm soft-dome tweeter |
| Weight | 29.1 lbs (13.2 kg) | 29.1 lbs (13.2 kg) each |
| Dimensions | 14.8”H x 7.7”W x 10.6”D (375.0 x 195.0 x 268.0 mm) | 21 x 7.5 x 10.5 in each |
| Woofer Cabinet | ported, front | - |
| Spinorama Preference Score | 4.75 (spinorama.org) | 5.33 |
| Spinorama Preference Score with Perfect Sub | 7.0 (spinorama.org) | 7.99 |
| DIY Kit | No | No |
| Power Handling | - | 240W continuous; 400W short-term peak |
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