Short answer: the ELAC DBR62 if sound quality matters most, the Ascend CBM-170 SE2 if price matters most. The ELAC DBR62 ranks #55 of 130 bookshelf speakers at $799. The Ascend CBM-170 SE2 ranks #66 at $468, $331 cheaper.
What the ELAC DBR62 offers: Two-way design with a 6.5” woofer and 1” dome tweeter in a shallow waveguide, with the tweeter positioned close to the woofer for near-point-source coherence - giving more vertical listening leeway than typical two-ways. Notably forgiving of placement and aiming: sounds good from directly on-axis all the way to 30° of toe-out (parallel with the rear wall), making it more room-independent than many speakers this price. Wide horizontal radiation of about ±70° until the tweeter starts beaming, right in the reviewer’s preferred sweet spot. A mild, wide-Q bass bump centered around 100Hz adds a bit of extra punch that the reviewer personally likes. On-axis linearity within about ±2.5dB, with a strong measured preference score of 5.3. Distortion stays below 3% at both 86dB and 96dB until around 50Hz. Vertical sweet spot of about ±10-20° works well for multi-row home theater seating. The reviewer calls it “the epitome of a good speaker” for its price, with no reservations recommending it. Watch for: A slight recess in the 1-2kHz region reduces vocal presence somewhat compared to other speakers in direct comparison. A mild hot spot around 4-5kHz can read as slight sibilance when pointed directly on-axis. Low-to-mid sensitivity (about 84.3dB) combined with a current draw that behaves like roughly 2.4 ohms between 100-200Hz means it’s best driven by a dedicated 4-ohm-capable amplifier rather than an AVR. A diffraction dip from the baffle edge is visible in measurements - typical of any standard rectangular-baffle speaker and not correctable without a much more expensive curved-baffle design. Multitone distortion testing suggests some potential midrange distortion could be audible on certain material, though the reviewer didn’t personally notice it. Minor resonances appear around 700Hz and 1-1.5kHz, possibly tied to the enclosure, port, or cone/surround edge termination, though their audible impact appears minimal. F3 of 53Hz means a subwoofer is still needed for real bass extension below about 40Hz.
What the Ascend CBM-170 SE2 offers: On-axis response is impressively flat from about 100Hz to 2kHz, staying within roughly ±1dB, with a clean, gradual bass rolloff below that. The directivity index rises smoothly and predictably through the crossover region, and the estimated in-room response shows a smooth, consistent downward tilt from 100Hz to 10kHz with no major discontinuities - close to the ideal in-room target shape. Measured sensitivity of 86.8dB nearly matches Ascend’s 87dB spec. The manufacturer’s own preference-score modeling comes out to 5.81 unequalized (rising to 8.17 with an ideal subwoofer, or 6.33/8.41 with EQ applied) - a strong result for a compact 2-way, and a clear step up from the original CBM-170 SE this replaces. Watch for: A narrow dip in the on-axis and listening-window response appears in the 3-5kHz range (down to about -2.7dB), mirrored by a matching dip in the directivity index at the same frequencies - likely a brief widening of dispersion right at the tweeter/woofer crossover. High-frequency directivity narrows substantially above 10kHz, typical for a small dome tweeter, so the top octave will sound more reserved off-axis than on-axis. Bass rolls off as expected for a compact 2-way monitor: -3dB around 70Hz and -10dB around 50Hz, so a subwoofer is needed for full-range use. This data comes from the manufacturer’s own Klippel measurements rather than an independent third-party review, so there’s no outside verification of channel matching, distortion, or unit-to-unit consistency.
Buy the ELAC DBR62 if sound quality matters more than the price. Buy the Ascend CBM-170 SE2 if the price matters more than sound quality.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| ELAC DBR62 | Ascend CBM-170 SE2 | |
|---|---|---|
| Price | $799.00 per pair | $468 per pair |
| Ranked | #55 of 130 in Large Size Bookshelf Speakers | #66 of 130 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 41Hz (measured, Erin's Audio Corner) | 50Hz (measured, manufacturer spinorama data) |
| Bass Extension (-3dB) | 53Hz (measured, Erin's Audio Corner) | 70Hz (measured, manufacturer spinorama data) |
| Dimensions | 14.1"H x 8.2"W x 10.8"D (358.1 x 208.3 x 274.3 mm) | 12H x 9W x 9.5D in |
| Impedance | 6 ohms nominal, 5.2 ohms minimum (measured above 80Hz, Erin's Audio Corner) | 8 ohms |
| Sensitivity | 84.3dB (measured average 300Hz-3kHz @ 2.83V/1m, Erin's Audio Corner; 86dB manufacturer specified) | 86.8dB (2.83V/1m, measured, manufacturer spinorama data; 87dB manufacturer specified) |
| Drivers | 6.5" Aramid Fiber woofer, 1" soft dome tweeter | 27mm custom SEAS soft dome tweeter, 6.5" proprietary composite polygel cone woofer |
| Weight | 18.1 lbs (8.2 kg) each | 15 lbs (6.8 kg) each |
| Woofer Cabinet | ported, front | ported, rear |
| Spinorama Preference Score | 4.16 | 5.81 |
| Spinorama Preference Score with Perfect Sub | 6.35 | 8.17 |
| Power Handling | - | 200W continuous, 400W peak |
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The Two Speakers In Full
ELAC DBR62: $799.00 per pair Amazon Crutchfield eBay
Pros: Two-way design with a 6.5” woofer and 1” dome tweeter in a shallow waveguide, with the tweeter positioned close to the woofer for near-point-source coherence - giving more vertical listening leeway than typical two-ways. Notably forgiving of placement and aiming: sounds good from directly on-axis all the way to 30° of toe-out (parallel with the rear wall), making it more room-independent than many speakers this price. Wide horizontal radiation of about ±70° until the tweeter starts beaming, right in the reviewer’s preferred sweet spot. A mild, wide-Q bass bump centered around 100Hz adds a bit of extra punch that the reviewer personally likes. On-axis linearity within about ±2.5dB, with a strong measured preference score of 5.3. Distortion stays below 3% at both 86dB and 96dB until around 50Hz. Vertical sweet spot of about ±10-20° works well for multi-row home theater seating. The reviewer calls it “the epitome of a good speaker” for its price, with no reservations recommending it. Measured bass extension of 53Hz (-3dB), with a measured sensitivity of 84.3dB.
Cons: A slight recess in the 1-2kHz region reduces vocal presence somewhat compared to other speakers in direct comparison. A mild hot spot around 4-5kHz can read as slight sibilance when pointed directly on-axis. Low-to-mid sensitivity (about 84.3dB) combined with a current draw that behaves like roughly 2.4 ohms between 100-200Hz means it’s best driven by a dedicated 4-ohm-capable amplifier rather than an AVR. A diffraction dip from the baffle edge is visible in measurements - typical of any standard rectangular-baffle speaker and not correctable without a much more expensive curved-baffle design. Multitone distortion testing suggests some potential midrange distortion could be audible on certain material, though the reviewer didn’t personally notice it. Minor resonances appear around 700Hz and 1-1.5kHz, possibly tied to the enclosure, port, or cone/surround edge termination, though their audible impact appears minimal. F3 of 53Hz means a subwoofer is still needed for real bass extension below about 40Hz.
Full ELAC DBR62 review and specifications →
| Bass Extension (-10dB) | 41Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 53Hz (measured, Erin's Audio Corner) |
| Dimensions | 14.1"H x 8.2"W x 10.8"D (358.1 x 208.3 x 274.3 mm) |
| Drivers | 6.5" Aramid Fiber woofer, 1" soft dome tweeter |
| Impedance | 6 ohms nominal, 5.2 ohms minimum (measured above 80Hz, Erin's Audio Corner) |
| Sensitivity | 84.3dB (measured average 300Hz-3kHz @ 2.83V/1m, Erin's Audio Corner; 86dB manufacturer specified) |
| Spinorama Preference Score | 4.16 |
| Spinorama Preference Score with Perfect Sub | 6.35 |
| Weight | 18.1 lbs (8.2 kg) each |
| Woofer Cabinet | ported, front |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: Top 3 Things You Need to Know About ELAC DBR62 Before You Buy More from Erin’s Audio Corner →
- Erin’s Audio Corner Website Elac DBR62
- Erin’s Audio Corner: 5 AWESOME SPEAKERS Under $1000 You Won’t Regret
- Erin’s Audio Corner: My Top Picks of 2023: Must-Haves Under $3000
- Audio Science Review Measurements More from Audio Science Review →
- Erin’s Audio Corner Measurements (spinorama.org)
- Head-to-Head Comparisons
- ELAC DBR62 vs ELAC Uni-Fi Reference UBR62
- ELAC DBR62 vs Yamaha NS-800A
- ELAC DBR62 vs Definitive Technology Demand D11
- ELAC DBR62 vs Technics SB-C700
- ELAC DBR62 vs Dynaudio Contour 20i
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- See all 62 comparisons
Ascend CBM-170 SE2: $468 per pair Ascend Acoustics eBay
Pros: On-axis response is impressively flat from about 100Hz to 2kHz, staying within roughly ±1dB, with a clean, gradual bass rolloff below that. The directivity index rises smoothly and predictably through the crossover region, and the estimated in-room response shows a smooth, consistent downward tilt from 100Hz to 10kHz with no major discontinuities - close to the ideal in-room target shape. Measured sensitivity of 86.8dB nearly matches Ascend’s 87dB spec. The manufacturer’s own preference-score modeling comes out to 5.81 unequalized (rising to 8.17 with an ideal subwoofer, or 6.33/8.41 with EQ applied) - a strong result for a compact 2-way, and a clear step up from the original CBM-170 SE this replaces. Measured sensitivity of 86.8dB.
Cons: A narrow dip in the on-axis and listening-window response appears in the 3-5kHz range (down to about -2.7dB), mirrored by a matching dip in the directivity index at the same frequencies - likely a brief widening of dispersion right at the tweeter/woofer crossover. High-frequency directivity narrows substantially above 10kHz, typical for a small dome tweeter, so the top octave will sound more reserved off-axis than on-axis. Bass rolls off as expected for a compact 2-way monitor: -3dB around 70Hz and -10dB around 50Hz, so a subwoofer is needed for full-range use. This data comes from the manufacturer’s own Klippel measurements rather than an independent third-party review, so there’s no outside verification of channel matching, distortion, or unit-to-unit consistency.
Full Ascend CBM-170 SE2 review and specifications →
| Bass Extension (-10dB) | 50Hz (measured, manufacturer spinorama data) |
|---|---|
| Bass Extension (-3dB) | 70Hz (measured, manufacturer spinorama data) |
| Dimensions | 12H x 9W x 9.5D in |
| Drivers | 27mm custom SEAS soft dome tweeter, 6.5" proprietary composite polygel cone woofer |
| Impedance | 8 ohms |
| Power Handling | 200W continuous, 400W peak |
| Sensitivity | 86.8dB (2.83V/1m, measured, manufacturer spinorama data; 87dB manufacturer specified) |
| Spinorama Preference Score | 5.81 |
| Spinorama Preference Score with Perfect Sub | 8.17 |
| Weight | 15 lbs (6.8 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ascend CBM-170 SE2 vs Polk Signature Elite ES20
- Ascend CBM-170 SE2 vs Dynaudio Contour 20i
- Ascend CBM-170 SE2 vs Klipsch RP-600M II
- Ascend CBM-170 SE2 vs Dynaudio Emit 20
- Ascend CBM-170 SE2 vs Philharmonic BMR Monitor
- Ascend CBM-170 SE2 vs Mission LX-3 MKII
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- Ascend CBM-170 SE2 vs Dynaudio Special Forty
- See all 44 comparisons