Short answer: the Buchardt Audio E50 if sound quality matters most, the Ascend Acoustics CMT-340 SE2 if price matters most. The Buchardt Audio E50 ranks #16 of 130 bookshelf speakers at $4600. The Ascend Acoustics CMT-340 SE2 ranks #23 at $798, $3802 cheaper.
What the Buchardt Audio E50 offers: Exceptional bass extension for a bookshelf - F3 at 40Hz, F10 at 34Hz - with genuinely low-end weight the reviewer kept noticing track after track, not just a single room-boosted note. Mid and lower-midrange are very neutral with no coloration and well-executed baffle-step compensation, so it doesn’t need to sit close to a wall like many bookshelf designs. Low distortion throughout the midrange, controlled ~60-degree horizontal directivity, and a striking driver/waveguide integration that looks genuinely upscale. Watch for: A roughly 3dB dip in the upper midrange/lower treble softens attack and dialogue clarity - the reviewer’s main complaint, and it’s baked into the crossover rather than a directivity artifact, so it’s audible both on and off axis. Sounds too bright pointed directly at the listener; needs about 10-20 degrees of toe-out to tame the treble and slightly smooth (not eliminate) that dip. Below-average sensitivity (measured 83.1dB vs 85dB spec) calls for a beefier amp, and the speaker’s tonal balance is unusually sensitive to amplifier output impedance - a poor tube amp can shift the midrange by up to 2dB.
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 Buchardt Audio E50 if sound quality matters more than the price. Buy the Ascend Acoustics CMT-340 SE2 if the price matters more than sound quality.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Buchardt Audio E50 | Ascend Acoustics CMT-340 SE2 | |
|---|---|---|
| Price | $4600 per pair | $798 per pair |
| Ranked | #16 of 130 in Large Size Bookshelf Speakers | #23 of 130 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 34Hz (measured, Erin's Audio Corner) | approximately 53Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 40Hz (measured, Erin's Audio Corner) | 77.6Hz (measured, spinorama.org) |
| Dimensions | 15.6" x 7.5" x 11.2" (395 x 190 x 284 mm) | 21 x 7.5 x 10.5 in each |
| Impedance | 4 ohms nominal | 8 ohms nominal |
| Sensitivity | 83.1dB (2.83V/1m, measured by Erin's Audio Corner) | 92dB at 2.83V/1m anechoic |
| Drivers | 1" Scanspeak dome tweeter with waveguide, 6.5" Purifi extended-stroke woofer, dual 6.5" passive radiators | Two 6.5-inch woofers; 27mm soft-dome tweeter |
| Weight | 19 lbs (8.6 kg) each | 29.1 lbs (13.2 kg) each |
| Woofer Cabinet | Passive radiator loaded | - |
| Crossover Frequency | 2000Hz | - |
| Frequency Response | 36Hz - 30kHz ±3dB (Manufacturer specified) | - |
| Recommended Power | 60W - 200W | - |
| Country | Denmark | - |
| Spinorama Preference Score | 5.03 | 4.51 |
| Spinorama Preference Score with Perfect Sub | 6.80 | 7.17 |
| Power Handling | - | 240W continuous; 400W short-term peak |
Related Speaker Comparisons
How Buchardt Audio E50 compares with other leading options:
- Buchardt Audio E50 vs Perlisten S4b
- KEF Reference 1 Meta vs Buchardt Audio E50
- Buchardt Audio E50 vs GR-Research NX-Studio
- March Audio Sointuva vs Buchardt Audio E50
- AsciLab C6B vs Buchardt Audio E50
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Buchardt Audio E50: $4600 per pair Buchardt Audio eBay
Pros: Exceptional bass extension for a bookshelf - F3 at 40Hz, F10 at 34Hz - with genuinely low-end weight the reviewer kept noticing track after track, not just a single room-boosted note. Mid and lower-midrange are very neutral with no coloration and well-executed baffle-step compensation, so it doesn’t need to sit close to a wall like many bookshelf designs. Low distortion throughout the midrange, controlled ~60-degree horizontal directivity, and a striking driver/waveguide integration that looks genuinely upscale. Measured bass extension of 40Hz (-3dB), with a measured sensitivity of 83.1dB.
Cons: A roughly 3dB dip in the upper midrange/lower treble softens attack and dialogue clarity - the reviewer’s main complaint, and it’s baked into the crossover rather than a directivity artifact, so it’s audible both on and off axis. Sounds too bright pointed directly at the listener; needs about 10-20 degrees of toe-out to tame the treble and slightly smooth (not eliminate) that dip. Below-average sensitivity (measured 83.1dB vs 85dB spec) calls for a beefier amp, and the speaker’s tonal balance is unusually sensitive to amplifier output impedance - a poor tube amp can shift the midrange by up to 2dB.
Full Buchardt Audio E50 review and specifications →
| Bass Extension (-10dB) | 34Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 40Hz (measured, Erin's Audio Corner) |
| Country | Denmark |
| Crossover Frequency | 2000Hz |
| Dimensions | 15.6" x 7.5" x 11.2" (395 x 190 x 284 mm) |
| Drivers | 1" Scanspeak dome tweeter with waveguide, 6.5" Purifi extended-stroke woofer, dual 6.5" passive radiators |
| Frequency Response | 36Hz - 30kHz ±3dB (Manufacturer specified) |
| Impedance | 4 ohms nominal |
| Recommended Power | 60W - 200W |
| Sensitivity | 83.1dB (2.83V/1m, measured by Erin's Audio Corner) |
| Spinorama Preference Score | 5.03 |
| Spinorama Preference Score with Perfect Sub | 6.80 |
| Weight | 19 lbs (8.6 kg) each |
| Woofer Cabinet | Passive radiator loaded |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Buchardt Audio E50 vs KEF R3
- Buchardt Audio E50 vs MoFi SourcePoint 8
- Buchardt Audio E50 vs Wharfedale Aura 2
- Buchardt Audio E50 vs AsciLab F6Bs
- Buchardt Audio E50 vs KEF Q Concerto Meta
- Buchardt Audio E50 vs Arendal 1528 Monitor 8
- Buchardt Audio E50 vs KEF R3 Meta
- Buchardt Audio E50 vs Wharfedale Super Linton
- See all 45 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 KEF R3
- See all 44 comparisons