Short answer: the KEF Q Concerto Meta on measured sound quality, the Ascend Acoustics CMT-340 SE2 on price. The KEF Q Concerto Meta ranks #11 of 130 bookshelf speakers at $1399.99. The Ascend Acoustics CMT-340 SE2 ranks #23 at $798, $601.99 cheaper.
What the KEF Q Concerto Meta offers: Really good in-room neutrality with consistent horizontal directivity from seat to seat. Directivity holds remarkably steady from lower treble into upper treble, where many similarly-priced speakers narrow sharply as frequency rises - one of the reviewer’s top 10 picks under $1,500. Watch for: Radiation pattern measures about ±50°, narrower than the reviewer’s preferred ±60° for a stronger sense of envelopment. Needs to be pointed closer to on-axis rather than heavily toed out - combined with its rolled-off, shelved-down top end, too much toe-out makes it sound noticeably dark.
What the Ascend Acoustics CMT-340 SE2 offers: High-quality manufacturer Klippel NFS data shows 0.295dB on-axis average absolute deviation, 0.531 listening-window smoothness, and a strong 7.17 preference score with a subwoofer. Its dual 6.5-inch woofers, 92dB anechoic sensitivity, and 240W continuous power rating support high output and dynamics. 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 4.51. The 4.35 sound-power directivity-index standard deviation also indicates more off-axis variation than the strongest designs, and the rear port needs placement clearance.
Buy the KEF Q Concerto Meta when sound quality outweighs the price for you, and the Ascend Acoustics CMT-340 SE2 when the price outweighs sound quality instead.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| KEF Q Concerto Meta | Ascend Acoustics CMT-340 SE2 | |
|---|---|---|
| Price | $1,399.99 per pair | $798 per pair |
| Ranked | #11 of 130 in Large Size Bookshelf Speakers | #23 of 130 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 35Hz (measured, Erin's Audio Corner) | approximately 53Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 53Hz (measured, Erin's Audio Corner) | 77.6Hz (measured, spinorama.org) |
| Dimensions | 16.3"H x 8.3"W x 12.4"D (414 x 210.8 x 315 mm) | 21 x 7.5 x 10.5 in each |
| Impedance | 4 ohms nominal (3.3 ohms minimum above 80Hz, measured by Erin's Audio Corner) | 8 ohms nominal |
| Drivers | 165 mm (6.5 in.) hybrid aluminium cone woofer, 100 mm (4 in.) aluminium cone midrange, 19 mm (0.75 in.) vented aluminium dome with MAT tweeter | Two 6.5-inch woofers; 27mm soft-dome tweeter |
| Sensitivity | 84.2dB (measured average, Erin's Audio Corner) | 92dB at 2.83V/1m anechoic |
| Weight | 20.9 lbs (9.5 kg) each | 29.1 lbs (13.2 kg) each |
| Woofer Cabinet | ported, rear | - |
| Spinorama Preference Score | 5.32 | 4.51 |
| Spinorama Preference Score with Perfect Sub | 7.01 | 7.17 |
| Power Handling | - | 240W continuous; 400W short-term peak |
Related Speaker Comparisons
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Prices on this page were last checked September 16, 2026 at 12:41 AM 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
KEF Q Concerto Meta: $1,399.99 per pair Amazon Crutchfield eBay
Pros: Really good in-room neutrality with consistent horizontal directivity from seat to seat. Directivity holds remarkably steady from lower treble into upper treble, where many similarly-priced speakers narrow sharply as frequency rises - one of the reviewer’s top 10 picks under $1,500. Measured bass extension of 53Hz (-3dB), with a measured sensitivity of 84.2dB.
Cons: Radiation pattern measures about ±50°, narrower than the reviewer’s preferred ±60° for a stronger sense of envelopment. Needs to be pointed closer to on-axis rather than heavily toed out - combined with its rolled-off, shelved-down top end, too much toe-out makes it sound noticeably dark.
Full KEF Q Concerto Meta review and specifications →
| Bass Extension (-10dB) | 35Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 53Hz (measured, Erin's Audio Corner) |
| Dimensions | 16.3"H x 8.3"W x 12.4"D (414 x 210.8 x 315 mm) |
| Drivers | 165 mm (6.5 in.) hybrid aluminium cone woofer, 100 mm (4 in.) aluminium cone midrange, 19 mm (0.75 in.) vented aluminium dome with MAT tweeter |
| Impedance | 4 ohms nominal (3.3 ohms minimum above 80Hz, measured by Erin's Audio Corner) |
| Sensitivity | 84.2dB (measured average, Erin's Audio Corner) |
| Spinorama Preference Score | 5.32 |
| Spinorama Preference Score with Perfect Sub | 7.01 |
| Weight | 20.9 lbs (9.5 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: HiFi Perfection? KEF CONCERTO META Delivers! More from Erin’s Audio Corner →
- Erin’s Audio Corner Website KEF Q Concerto Meta
- Erin’s Audio Corner: I Tested 250 Speakers So You Don’t Have To!
- Erin’s Audio Corner: HiFi Perfection? KEF CONCERTO META Delivers!
- Erin’s Audio Corner: My Absolute Favorite Products of 2024 Revealed
- Erin’s Audio Corner Measurements (spinorama.org)
- Head-to-Head Comparisons
- KEF Q Concerto Meta vs KEF R3 Meta
- KEF Q Concerto Meta vs Wharfedale Aura 2
- KEF Q Concerto Meta vs Revel M106
- KEF Q Concerto Meta vs Audio First Cadentia 3
- KEF Q Concerto Meta vs AsciLab C6B
- KEF Q Concerto Meta vs KEF R3
- KEF Q Concerto Meta vs Buchardt Audio E50
- KEF Q Concerto Meta vs MoFi SourcePoint 8
- See all 66 comparisons
Ascend Acoustics CMT-340 SE2: $798 per pair Ascend Acoustics eBay
Pros: High-quality manufacturer Klippel NFS data shows 0.295dB on-axis average absolute deviation, 0.531 listening-window smoothness, and a strong 7.17 preference score with a subwoofer. Its dual 6.5-inch woofers, 92dB anechoic sensitivity, and 240W continuous power rating support high output and dynamics. Measured bass extension of 77.6Hz (-3dB).
Cons: 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 4.51. The 4.35 sound-power directivity-index standard deviation also indicates more off-axis variation than the strongest designs, and the rear port needs placement clearance.
Full Ascend Acoustics CMT-340 SE2 review and specifications →
| Bass Extension (-10dB) | approximately 53Hz (measured, spinorama.org) |
|---|---|
| Bass Extension (-3dB) | 77.6Hz (measured, spinorama.org) |
| Dimensions | 21 x 7.5 x 10.5 in each |
| Drivers | Two 6.5-inch woofers; 27mm soft-dome tweeter |
| Impedance | 8 ohms nominal |
| Power Handling | 240W continuous; 400W short-term peak |
| Sensitivity | 92dB at 2.83V/1m anechoic |
| Spinorama Preference Score | 4.51 |
| Spinorama Preference Score with Perfect Sub | 7.17 |
| Weight | 29.1 lbs (13.2 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ascend Acoustics CMT-340 SE2 vs Arendal 1528 Monitor 8
- Ascend Acoustics CMT-340 SE2 vs Wharfedale Super Linton
- Ascend Acoustics CMT-340 SE2 vs AsciLab F6Bs
- Ascend Acoustics CMT-340 SE2 vs MoFi SourcePoint 10
- Ascend Acoustics CMT-340 SE2 vs Radiant Acoustics Clarity 6.2
- Ascend Acoustics CMT-340 SE2 vs Dynaudio Heritage Special
- Ascend Acoustics CMT-340 SE2 vs MoFi SourcePoint 8
- Ascend Acoustics CMT-340 SE2 vs Buchardt Audio E50
- See all 44 comparisons