Short answer: the Ascend Acoustics Sierra-2EX V2. It ranks #42 of 216 bookshelf speakers by sound quality, rated 4.3/5, at $1,748. The Dynaudio Emit 20 ranks #129, rated 3.6/5, at $1,049, $699 cheaper, a saving that is not big enough to make up the sound-quality gap.
The Ascend Acoustics Sierra-2EX V2 is the more accurate pick. A RAAL true ribbon tweeter is paired with a custom SEAS Excel Curv woofer, with the crossover optimized against Klippel NFS measurement data. Its measured preference score, a predictor of how neutral it sounds, is 5.88 against 4.22 for the Dynaudio Emit 20. The tradeoff: On-axis response is relatively uneven, with an average deviation of about 0.45dB, so a listener sitting dead center may notice more unevenness than with smoother AsciLab or Ascend towers.
The case for the Dynaudio Emit 20: Two-way design with a 28mm Esotar soft dome tweeter (Hexis-damped) and an 18cm mid-woofer, using a first-order crossover on the tweeter and second-order on the woofer. The tradeoff: A resonance around 600-800Hz gives snares and similar percussion a muffled, flat quality lacking impact: confirmed as originating in the woofer itself (isolated via measurements of the raw driver out of the cabinet), and attempts at constrained-layer damping didn’t resolve it.
Buy the Ascend Acoustics Sierra-2EX V2. It is rated higher for sound quality, and the $699 you would save on the Dynaudio Emit 20 does not close the gap.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Ascend Acoustics Sierra-2EX V2 | Dynaudio Emit 20 | |
|---|---|---|
| Price | $1,748 per pair | $1,049.00 per pair |
| Ranked | #42 of 216 in Large Size Bookshelf Speakers | #129 of 216 in Large Size Bookshelf Speakers |
| Enclosure | ported | - |
| Drivers | RAAL 10mm true ribbon tweeter, 6” SEAS Excel Curv cone woofer | 7.1” Magnesium Silicate Polymer woofer, 1.1” Cerotar soft dome with Hexis tweeter |
| Dimensions | 14.3”H x 7.5”W x 10.5”D (362 x 190 x 267 mm) | 14.6”H x 8.1”W x 12.3”D (370.0 x 205.0 x 312.0 mm) |
| Weight | 20.1 lbs (9.1 kg) each | 12.8 lbs (5.8 kg) |
| Sensitivity | 85dB @ 2.83V/1m anechoic (manufacturer) | 83.5dB (measured, Erin’s Audio Corner; 86dB manufacturer specified) |
| Impedance | 8 ohms nominal | 6 ohms nominal (5.5 ohms minimum above 80Hz, measured, Erin’s Audio Corner) |
| Power Handling | 150W continuous, 300W peak | - |
| Frequency Response | 51-27,000Hz +/-3dB (manufacturer) | - |
| Bass Extension (-6dB) | 51.3Hz (measured, spinorama.org vendor data) | - |
| Bass Extension (-3dB) | 58.6Hz (measured, spinorama.org vendor data) | 54Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 42.4Hz (measured, spinorama.org vendor data) | 33Hz (measured, Erin’s Audio Corner) |
| Warranty | 7 years parts and labor | - |
| Country | United States | - |
| Spinorama Preference Score | 5.88 | 4.22 |
| Spinorama Preference Score with Perfect Sub | 7.95 | 5.92 |
| DIY Kit | No | No |
| Woofer Cabinet | - | ported, rear |
Frequency Response Compared
Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared. The two were measured by different sources, so small differences, especially in the bass, can come from the measurement setup rather than the speakers.
Measurement data: Ascend Acoustics Sierra-2EX V2 (measured by the manufacturer) and Dynaudio Emit 20 (measured by Erin’s Audio Corner), via spinorama.org.
Related Speaker Comparisons
More worthwhile head-to-heads for Ascend Acoustics Sierra-2EX V2:
- Ascend Acoustics Sierra-2EX V2 vs Perlisten S4b
- Ascend Acoustics Sierra-2EX V2 vs KEF Reference 1 Meta
- Ascend Acoustics Sierra-2EX V2 vs GR-Research NX-Studio
- AsciLab C6B vs Ascend Acoustics Sierra-2EX V2
- Audio First Cadentia 3 vs Ascend Acoustics Sierra-2EX V2
Prices on this page were last checked October 14, 2026 at 2:38 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 Sierra-2EX V2: $1,748 per pair Ascend Acoustics $1,748 eBay
Older model: the Ascend Acoustics Sierra 2 (ranked lower, rated 3.7/5). See every Ascend Sierra generation.
Same family: the Ascend Acoustics Sierra 1 v2 (smaller bookshelf, rated 4.7/5), the Ascend Acoustics Sierra-LX (larger bookshelf, ranked higher, rated 4.3/5), the Ascend Acoustics Sierra Titan Tower (floorstanding, rated 4.4/5) and the Ascend Acoustics Sierra Horizon V2 (center, estimated 4.3/5).
Pros: A RAAL true ribbon tweeter is paired with a custom SEAS Excel Curv woofer, with the crossover optimized against Klippel NFS measurement data. Listening window smoothness measures 0.45, a moderate but usable figure for a compact standmount. Pairs are hand matched within +/-1.5dB and shipped with their own individual frequency response printout, backed by a 7 year parts and labor warranty from direct USA assembly in Orange County, California. Measured bass extension of 58.6Hz (-3dB).
Cons: On-axis response is relatively uneven, with an average deviation of about 0.45dB, so a listener sitting dead center may notice more unevenness than with smoother AsciLab or Ascend towers. Bass extension is modest for the price class at a measured 51.3Hz at -6dB. Ascend sells direct only, with no dealer network or third party retailers for an in person audition.
Full Ascend Acoustics Sierra-2EX V2 review and specifications →
| Released | Sep 2022 (4 years ago) |
|---|---|
| Bass Extension (-10dB) | 42.4Hz (measured, spinorama.org vendor data) |
| Bass Extension (-3dB) | 58.6Hz (measured, spinorama.org vendor data) |
| Bass Extension (-6dB) | 51.3Hz (measured, spinorama.org vendor data) |
| Country | United States |
| DIY Kit | No |
| Dimensions | 14.3”H x 7.5”W x 10.5”D (362 x 190 x 267 mm) |
| Drivers | RAAL 10mm true ribbon tweeter, 6” SEAS Excel Curv cone woofer |
| Enclosure | ported |
| Frequency Response | 51-27,000Hz +/-3dB (manufacturer) |
| Impedance | 8 ohms nominal |
| Power Handling | 150W continuous, 300W peak |
| Sensitivity | 85dB @ 2.83V/1m anechoic (manufacturer) |
| Spinorama Preference Score | 5.88 |
| Spinorama Preference Score with Perfect Sub | 7.95 |
| Warranty | 7 years parts and labor |
| Weight | 20.1 lbs (9.1 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ascend Acoustics Sierra-2EX V2 vs Selah Audio Integrity
- Ascend Acoustics Sierra-2EX V2 vs Philharmonic BMR (v1)
- Ascend Acoustics Sierra-2EX V2 vs Revel M126Be
- Ascend Acoustics Sierra-2EX V2 vs Ascend Acoustics Sierra-LX
- Ascend Acoustics Sierra-2EX V2 vs Wharfedale Linton 85
- Ascend Acoustics Sierra-2EX V2 vs Emotiva Airmotiv XB2
- Ascend Acoustics Sierra-2EX V2 vs ELAC Debut 3.0 DB63
- Ascend Acoustics Sierra-2EX V2 vs Perlisten A3m
- See all 46 comparisons
Dynaudio Emit 20: $1,049.00 per pair Amazon $1,049.00 eBay
Same family: the Dynaudio Emit 10 (smaller bookshelf, estimated 3.2/5), the Dynaudio Emit 30 (smaller floorstanding, rated 3.9/5), the Dynaudio Emit 50 (larger floorstanding, estimated 4.2/5) and the Dynaudio Emit 25C (center, estimated 3.7/5). See every Dynaudio Emit generation.
Pros: Two-way design with a 28mm Esotar soft dome tweeter (Hexis-damped) and an 18cm mid-woofer, using a first-order crossover on the tweeter and second-order on the woofer. Exceptional bass extension for a bookshelf speaker: reaches a clean, authoritative 40Hz in-room, rare enough that the reviewer says most listeners could skip a subwoofer for typical music. Very low distortion across the board, staying below 1% THD down to 40Hz at 86dB and below 3% even at 96dB: unusually clean bass performance where most two-way bookshelf speakers start rising in distortion around 80Hz. Wide, remarkably consistent horizontal directivity (about ±50-60°) that holds steady up to roughly 13kHz: rare for a speaker in this format, thanks to a beveled tweeter edge that acts as a mild waveguide. Excellent compression and dynamic-range linearity at the frequency extremes, actually showing slight bass enhancement rather than the sharp low-end compression common in similarly-sized bookshelf speakers. Measured bass extension of 54Hz (-3dB), with a measured sensitivity of 83.5dB.
Cons: A resonance around 600-800Hz gives snares and similar percussion a muffled, flat quality lacking impact: confirmed as originating in the woofer itself (isolated via measurements of the raw driver out of the cabinet), and attempts at constrained-layer damping didn’t resolve it. A peak around 4kHz adds a sharp, edgy quality to some male vocals. A roughly 5dB boost above 10kHz gives cymbals and hi-hats excess shimmer that can sound unnatural, especially pointed directly on-axis. Vertical dispersion shows two separate crossover-related notches (above and below the tweeter reference line around 5kHz) rather than the usual single one, a direct consequence of the shallow crossover slopes used on both drivers. Multitone distortion is elevated in the midrange, possibly due to the woofer’s magnet structure lacking a shorting ring. Best aimed slightly off-axis (about 10-15° of toe-out) to tame the excess high-frequency shimmer, rather than pointed straight at the listener.
Full Dynaudio Emit 20 review and specifications →
| Released | Dec 2019 (6 years ago) |
|---|---|
| Bass Extension (-10dB) | 33Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 54Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 14.6”H x 8.1”W x 12.3”D (370.0 x 205.0 x 312.0 mm) |
| Drivers | 7.1” Magnesium Silicate Polymer woofer, 1.1” Cerotar soft dome with Hexis tweeter |
| Impedance | 6 ohms nominal (5.5 ohms minimum above 80Hz, measured, Erin’s Audio Corner) |
| Sensitivity | 83.5dB (measured, Erin’s Audio Corner; 86dB manufacturer specified) |
| Spinorama Preference Score | 4.22 |
| Spinorama Preference Score with Perfect Sub | 5.92 |
| Weight | 12.8 lbs (5.8 kg) |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Dynaudio Emit 20 vs Philharmonic BMR Monitor
- Dynaudio Emit 20 vs JBL Studio 630
- Dynaudio Emit 20 vs Behringer B2030P
- Dynaudio Emit 20 vs Mission LX-3 MKII
- Dynaudio Emit 20 vs Klipsch RP-600M II
- Dynaudio Emit 20 vs GR-Research X-LS Encore
- Dynaudio Emit 20 vs Polk Signature Elite ES20
- Dynaudio Emit 20 vs Infinity IL10
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