Short answer: the Ascend Acoustics CMT-340 SE2. It ranks #24 of 203 bookshelf speakers by sound quality (rated 4.4/5); the Aalto Speakers Aalto 3 Passive ranks #54 (rated 4.2/5).
The case for the Ascend Acoustics CMT-340 SE2: High-quality manufacturer Klippel NFS data shows 0.295dB on-axis average absolute deviation, 0.531 listening-window smoothness, and a strong 7.99 preference score with a subwoofer. 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.
The Aalto Speakers Aalto 3 Passive is the more accurate, deeper-bass choice. The passive version of the same cabinet as Aalto’s Active Pro model, sharing its 26mm aluminum tweeter and 6.5” bass-midrange driver but without the built-in amp module, for buyers who already have their own amplification. Its measured preference score, a predictor of how neutral it sounds, is 6.82 against 5.33 for the Ascend Acoustics CMT-340 SE2. Its bass reaches about 56.6Hz before falling 3dB, against 77.6Hz for the Ascend Acoustics CMT-340 SE2. The catch: Requires an external amplifier (50-250W recommended) that the Active Pro doesn’t, and shares the same review gap: no independent editorial coverage found, only manufacturer-supplied specs, with factory-direct-only sales from Finland.
Buy the Ascend Acoustics CMT-340 SE2. It is rated higher for sound quality than the Aalto Speakers Aalto 3 Passive.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| Ascend Acoustics CMT-340 SE2 | Aalto Speakers Aalto 3 Passive | |
|---|---|---|
| Price | $798 per pair | €3,490 per pair |
| Ranked | #24 of 203 in Large Size Bookshelf Speakers | #54 of 203 in Large Size Bookshelf Speakers |
| Bass Extension (-3dB) | 77.6Hz (measured, spinorama.org) | 56.6Hz (measured, manufacturer spinorama data) |
| Bass Extension (-10dB) | approximately 53Hz (measured, spinorama.org) | 32.1Hz (derived, log-interpolated between manufacturer spinorama -9dB/-12dB points) |
| Drivers | Two 6.5-inch woofers; 27mm soft-dome tweeter | 26mm aluminum dome tweeter, 6.5” long-throw bass-midrange, 8” passive radiator |
| Sensitivity | 92dB at 2.83V/1m anechoic | 83.5dB @ 2.83V/1m |
| Impedance | 8 ohms nominal | 4 ohms nominal (min 4 ohms @ 18kHz) |
| Power Handling | 240W continuous; 400W short-term peak | 50-250W RMS recommended amplifier power |
| Dimensions | 21 x 7.5 x 10.5 in each | 9.4”W x 15.7”H x 9.8”D (240 x 400 x 250 mm) |
| Weight | 29.1 lbs (13.2 kg) each | 20.7 lbs (9.4 kg) each |
| Spinorama Preference Score | 5.33 | 6.82 |
| Spinorama Preference Score with Perfect Sub | 7.99 | 8.45 |
| DIY Kit | No | No |
| Enclosure | - | 2-way, passive-radiator loaded, MDF |
| Country | - | Finland |
Related Speaker Comparisons
How Ascend Acoustics CMT-340 SE2 compares with other leading options:
- Ascend Acoustics CMT-340 SE2 vs Perlisten S4b
- KEF Reference 1 Meta vs Ascend Acoustics CMT-340 SE2
- Ascend Acoustics CMT-340 SE2 vs GR-Research NX-Studio
- AsciLab C6B vs Ascend Acoustics CMT-340 SE2
- Audio First Cadentia 3 vs Ascend Acoustics CMT-340 SE2
Prices on this page were last checked October 7, 2026 at 9:25 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
Ascend Acoustics CMT-340 SE2: $798 per pair Ascend Acoustics eBay
Older model: the Ascend Acoustics CMT-340 SE Center (rated 3.7/5).
Same family: the Ascend CBM-170 SE2 (smaller bookshelf, ranked lower, rated 3.8/5) and the Ascend Acoustics HTM-200SE2 (smaller bookshelf, rated 4.3/5).
Pros: High-quality manufacturer Klippel NFS data shows 0.295dB on-axis average absolute deviation, 0.531 listening-window smoothness, and a strong 7.99 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 5.33. 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) |
| DIY Kit | No |
| 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 | 5.33 |
| Spinorama Preference Score with Perfect Sub | 7.99 |
| Weight | 29.1 lbs (13.2 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
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Aalto Speakers Aalto 3 Passive: €3,490 per pair Aalto Speakers eBay
Same family: the Aalto Speakers Aalto 1 EVO (smaller bookshelf, rated 4.3/5), the Aalto Speakers Aalto 3 Active Pro (larger bookshelf, rated 4.7/5) and the Aalto Speakers Aalto 9 (floorstanding, rated 4.7/5).
Pros: The passive version of the same cabinet as Aalto’s Active Pro model, sharing its 26mm aluminum tweeter and 6.5” bass-midrange driver but without the built-in amp module, for buyers who already have their own amplification. Measures a -3dB extension of 56.6Hz with an on-axis deviation of 0.192dB, close to tonally neutral, a well-damped bass-alignment Q of 0.64, and reaches a deeper 34Hz Harman in-room extension estimate.
Cons: Requires an external amplifier (50-250W recommended) that the Active Pro doesn’t, and shares the same review gap: no independent editorial coverage found, only manufacturer-supplied specs, with factory-direct-only sales from Finland.
Full Aalto Speakers Aalto 3 Passive review and specifications →
| Bass Extension (-10dB) | 32.1Hz (derived, log-interpolated between manufacturer spinorama -9dB/-12dB points) |
|---|---|
| Bass Extension (-3dB) | 56.6Hz (measured, manufacturer spinorama data) |
| Country | Finland |
| DIY Kit | No |
| Dimensions | 9.4”W x 15.7”H x 9.8”D (240 x 400 x 250 mm) |
| Drivers | 26mm aluminum dome tweeter, 6.5” long-throw bass-midrange, 8” passive radiator |
| Enclosure | 2-way, passive-radiator loaded, MDF |
| Impedance | 4 ohms nominal (min 4 ohms @ 18kHz) |
| Power Handling | 50-250W RMS recommended amplifier power |
| Sensitivity | 83.5dB @ 2.83V/1m |
| Spinorama Preference Score | 6.82 |
| Spinorama Preference Score with Perfect Sub | 8.45 |
| Weight | 20.7 lbs (9.4 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Aalto Speakers Aalto 3 Passive vs JBL HDI-1600
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