Short answer: the Ascend Acoustics CMT-340 SE2. It ranks #24 of 203 bookshelf speakers by sound quality, rated 4.4/5, at $798. The SVS Prime Bookshelf ranks #137, rated 3.5/5, at $699, $99 cheaper, not enough of a saving to outweigh the sound-quality gap.
The Ascend Acoustics CMT-340 SE2 is the better-sounding pick. 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. The catch: 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.
Why pick the SVS Prime Bookshelf: Reasonable sensitivity for the price at about 87dB, and the 6.5” woofer sits in its own dedicated sealed sub-compartment inside the cabinet for cleaner midrange/bass separation. The catch: A scooped mid-range paired with a boosted upper mid-range creates an audibly uneven tonal balance, and there’s an additional dip in the treble around 4-5kHz that reads as slightly tinny relative to the recessed mid-range.
Buy the Ascend Acoustics CMT-340 SE2. It is rated higher for sound quality, and the $99 you would save on the SVS Prime Bookshelf does not close the gap.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Ascend Acoustics CMT-340 SE2 | SVS Prime Bookshelf | |
|---|---|---|
| Price | $798 per pair | $699.00 per pair |
| Ranked | #24 of 203 in Large Size Bookshelf Speakers | #137 of 203 in Large Size Bookshelf Speakers |
| Bass Extension (-3dB) | 77.6Hz (measured, spinorama.org) | 72Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | approximately 53Hz (measured, spinorama.org) | 49Hz (measured, Erin’s Audio Corner) |
| Drivers | Two 6.5-inch woofers; 27mm soft-dome tweeter | 6.5” polypropylene cone woofer with aluminum shorting ring (sealed sub-compartment), 1” aluminum dome tweeter |
| Sensitivity | 92dB at 2.83V/1m anechoic | 87dB (measured average, Erin’s Audio Corner) |
| Impedance | 8 ohms nominal | 8 ohms nominal, 3.9 ohms minimum (measured, Erin’s Audio Corner) |
| Power Handling | 240W continuous; 400W short-term peak | - |
| Dimensions | 21 x 7.5 x 10.5 in each | 13.2”H x 8”W x 10.2”D (335.3 x 203.2 x 259.1 mm) |
| Weight | 29.1 lbs (13.2 kg) each | 15.5 lbs (7.03 kg) each |
| Spinorama Preference Score | 5.33 | 5.17 |
| Spinorama Preference Score with Perfect Sub | 7.99 | 7.78 |
| DIY Kit | No | No |
| Frequency Response | - | 48Hz - 25kHz ±3dB (manufacturer specified) |
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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 |
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SVS Prime Bookshelf: $699.00 per pair Amazon eBay
Same family: the SVS Prime Satellite (smaller bookshelf, estimated 3.3/5), the SVS Prime Tower (smaller floorstanding, estimated 3.6/5), the SVS Prime Pinnacle (larger floorstanding, estimated 3.8/5) and the SVS Prime Center (center, rated 3.4/5).
Pros: Reasonable sensitivity for the price at about 87dB, and the 6.5” woofer sits in its own dedicated sealed sub-compartment inside the cabinet for cleaner midrange/bass separation. Overall response stays within about ±3dB from 80Hz-16kHz, which the reviewer calls reasonable for the price point. Wide, consistent horizontal radiation. Toeing the speakers 30 degrees off-axis smooths the in-room response noticeably if the on-axis tonal balance isn’t to your taste. Measured bass extension of 72Hz (-3dB), with a measured sensitivity of 87dB.
Cons: A scooped mid-range paired with a boosted upper mid-range creates an audibly uneven tonal balance, and there’s an additional dip in the treble around 4-5kHz that reads as slightly tinny relative to the recessed mid-range. Measured minimum impedance dips below 4 ohms (EPDR even lower), so an 8-ohm-only amplifier or AVR may struggle: a 4-ohm-stable amp or separate amplification is recommended. Bass extension is modest (F3 72Hz, F10 49Hz measured): SVS clearly designed this to be paired with one of their subwoofers rather than to stand fully alone. Compared directly against its pricier sibling, the SVS Ultra Bookshelf, in the same review, the reviewer found the Ultra noticeably more tonally neutral.
Full SVS Prime Bookshelf review and specifications →
| Bass Extension (-10dB) | 49Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 72Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 13.2”H x 8”W x 10.2”D (335.3 x 203.2 x 259.1 mm) |
| Drivers | 6.5” polypropylene cone woofer with aluminum shorting ring (sealed sub-compartment), 1” aluminum dome tweeter |
| Frequency Response | 48Hz - 25kHz ±3dB (manufacturer specified) |
| Impedance | 8 ohms nominal, 3.9 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 87dB (measured average, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.17 |
| Spinorama Preference Score with Perfect Sub | 7.78 |
| Weight | 15.5 lbs (7.03 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
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