Short answer: the Ascend Acoustics Sierra-2EX V2. Both are rated 4.3/5 for sound quality (#38 and #34 of 131 bookshelf speakers), and the Ascend Acoustics Sierra-2EX V2 costs $1,748 against $4,400 for the Revel M126Be, with sound quality a draw, the lower price decides it.
Why pick the Revel M126Be: Two-way design pairing a 6.5” midwoofer with a 1” beryllium dome tweeter, the smaller sibling to the reviewer’s favorite Revel F226Be. The tradeoff: At $2200/pair, the reviewer doesn’t consider it a strong value - an improvement over Revel’s less expensive M106 and Performa3 models, but not proportional to the price jump.
What the Ascend Acoustics Sierra-2EX V2 does well: A RAAL true ribbon tweeter is paired with a custom SEAS Excel Curv woofer, with the crossover optimized against Klippel NFS measurement data. The tradeoff: On axis deviation (measured average absolute deviation 0.454) is the roughest of any speaker in this batch, meaning a listener sitting dead center may notice more on axis unevenness than the smoother AsciLab or Ascend tower models nearby.
Buy the Ascend Acoustics Sierra-2EX V2. Both are rated the same for sound quality, and it costs $2,652 less than the Revel M126Be.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Revel M126Be | Ascend Acoustics Sierra-2EX V2 | |
|---|---|---|
| Price | $4,400 per pair | $1,748 per pair |
| Ranked | #34 of 131 in Large Size Bookshelf Speakers | #38 of 131 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 44Hz (measured, Erin’s Audio Corner) | 42.4Hz (measured, spinorama.org vendor data) |
| Bass Extension (-3dB) | 103Hz (measured, Erin’s Audio Corner) | 58.6Hz (measured, spinorama.org vendor data) |
| Dimensions | 15.2”H x 8.3”W x 10.3”D (386.1 x 210.8 x 261.6 mm) | 14.3”H x 7.5”W x 10.5”D (362 x 190 x 267 mm) |
| Impedance | 6 ohms nominal (4.9 ohms minimum, measured, Erin’s Audio Corner) | 8 ohms nominal |
| Sensitivity | 86.1dB (measured, Erin’s Audio Corner) | 85dB @ 2.83V/1m anechoic (manufacturer) |
| Drivers | 6.5” Deep Ceramic Composite (DCC) Aluminum Cone with cast frame woofer, 1” Beryllium dome with acoustic lens waveguide tweeter | RAAL 10mm true ribbon tweeter, 6” SEAS Excel Curv cone woofer |
| Weight | 22 lbs (10.0 kg) each | 20.1 lbs (9.1 kg) each |
| Woofer Cabinet | ported, rear | - |
| Spinorama Preference Score | 5.08 | 5.88 |
| Spinorama Preference Score with Perfect Sub | 7.34 | 7.95 |
| DIY Kit | No | No |
| Enclosure | - | ported |
| Power Handling | - | 150W continuous, 300W peak |
| Frequency Response | - | 51-27,000Hz +/-3dB (manufacturer) |
| Bass Extension (-6dB) | - | 51.3Hz (measured, spinorama.org vendor data) |
| Warranty | - | 7 years parts and labor |
| Country | - | United States |
Related Speaker Comparisons
More worthwhile head-to-heads for Revel M126Be:
- AsciLab C6B vs Revel M126Be
- KEF R3 Meta vs Revel M126Be
- KEF Q Concerto Meta vs Revel M126Be
- Wharfedale Aura 2 vs Revel M126Be
- KEF R3 vs Revel M126Be
Prices on this page were last checked September 26, 2026 at 11:14 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Revel M126Be: $4,400 per pair Crutchfield eBay
Older model: the Revel M106 (rated 4.6/5).
Pros: Two-way design pairing a 6.5” midwoofer with a 1” beryllium dome tweeter, the smaller sibling to the reviewer’s favorite Revel F226Be. Wide, immersive stereo imaging - hard-panned sounds in test tracks localized 2-3 feet outside the physical speaker positions without losing pinpoint precision. Horizontal radiation of about 60-70°, landing right in the reviewer’s preferred range for an enveloping yet still well-focused soundstage. Extended bass-shelf tuning (similar in concept to the KEF R3 Meta) combines with in-room gain for a more linear low end rather than a boomy hump. Diffraction dips visible on-axis around 3kHz and 7kHz largely disappear in the estimated in-room response, since they fill in as you move off-axis. Distortion stays within 3% down to about 100Hz at both 86dB and 96dB output - strong performance for a 6.5” bookshelf woofer. Can be driven by a standard AVR thanks to a manageable 4.9-ohm minimum impedance. Measured bass extension of 103Hz (-3dB), with a measured sensitivity of 86.1dB.
Cons: At $2200/pair, the reviewer doesn’t consider it a strong value - an improvement over Revel’s less expensive M106 and Performa3 models, but not proportional to the price jump. Bass tops out around 50Hz in-room; a subwoofer is still needed for real low-end extension. Vertical placement is fairly critical - there’s a notable hole in the response around the 1.7kHz crossover if you sit above the tweeter axis. Toeing the speaker out to a full 30° introduces a roughly 1dB discontinuity in the midrange along with high-frequency rolloff; the reviewer recommends staying close to on-axis or within about 10°. An unexplained jump in distortion appears right at the 1.7kHz crossover point under compression testing, which may be linked to an occasional “glaring” quality the reviewer noticed in the 2-3kHz region at very high volumes (92-93dB from 2 meters). A mild 2-3kHz forwardness occasionally stood out on some tracks, correctable with about 1dB of EQ, though the reviewer considers it minor.
Full Revel M126Be review and specifications →
| Bass Extension (-10dB) | 44Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 103Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 15.2”H x 8.3”W x 10.3”D (386.1 x 210.8 x 261.6 mm) |
| Drivers | 6.5” Deep Ceramic Composite (DCC) Aluminum Cone with cast frame woofer, 1” Beryllium dome with acoustic lens waveguide tweeter |
| Impedance | 6 ohms nominal (4.9 ohms minimum, measured, Erin’s Audio Corner) |
| Sensitivity | 86.1dB (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.08 |
| Spinorama Preference Score with Perfect Sub | 7.34 |
| Weight | 22 lbs (10.0 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Revel M126Be vs ELAC VELA BS 403
- Revel M126Be vs Ascend Acoustics Sierra-LX
- Revel M126Be vs Wharfedale Linton 85
- Revel M126Be vs Selah Audio Purezza
- Revel M126Be vs JTR Noesis 210HT
- Revel M126Be vs Dynaudio Heritage Special
- Revel M126Be vs Radiant Acoustics Clarity 6.2
- Revel M126Be vs Emotiva Airmotiv XB2
- See all 23 comparisons
Ascend Acoustics Sierra-2EX V2: $1,748 per pair Ascend Acoustics eBay
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 deviation (measured average absolute deviation 0.454) is the roughest of any speaker in this batch, meaning a listener sitting dead center may notice more on axis unevenness than the smoother AsciLab or Ascend tower models nearby. 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 →
| 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 Emotiva Airmotiv XB2
- Ascend Acoustics Sierra-2EX V2 vs ELAC Debut 3.0 DB63
- 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 Perlisten A3m
- Ascend Acoustics Sierra-2EX V2 vs Aalto Speakers Aalto 3 Passive
- See all 46 comparisons