Short answer: the Revel M16 for an easy room fit, the Dynaudio Contour 20i if you can treat the sidewalls. The M16 is essentially flat on-axis from 200Hz to 10kHz, though distortion peaks around 80Hz and spikes around 350Hz. The Contour 20i’s 1.125” Esotar2i silk dome and 7” woofer sound too bright in the lower treble in smaller rooms with close sidewalls and need sidewall absorption.
Buy the Dynaudio Contour 20i, since the Revel Concerta2 M16 is discontinued and only worth hunting down used.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Revel Concerta2 M16 | Dynaudio Contour 20i | |
|---|---|---|
| Price | $600 per pair used (about), Discontinued | $5750 per pair |
| Ranked | #51 of 134 in Large Size Bookshelf Speakers | #62 of 134 in Large Size Bookshelf Speakers |
| Drivers | 25mm tweeter + 165mm woofer | 18 cm MSP woofer, 28mm Esotar 2i with Hexis tweeter |
| Weight | 32 lbs (14.5 kg) | 30.9 lbs (14 kg) each |
| Sensitivity | 86dB | 82.5dB |
| Impedance | 6 ohms | 4 ohms |
| Dimensions | 14.8”H x 8.6”W x 10.8”D (374.7 x 218.4 x 273.3 mm) | 17.4”H x 8.5”W x 14.2”D (442 x 215.9 x 360.7 mm) |
| Woofer Cabinet | ported, rear | ported, rear |
| Bass Extension (-3dB) | 60.1Hz (measured, Audio Science Review) | 56Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 41.6Hz (measured, Audio Science Review) | 32Hz (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.06 | - |
| Spinorama Preference Score with Perfect Sub | 7.28 | - |
| DIY Kit | No | No |
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Prices on this page were last checked October 2, 2026 at 10:18 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
Revel Concerta2 M16: $600 per pair used (about) Discontinued eBay
Pros: CEA2034 spinorama shows an on-axis response that’s essentially flat from 200Hz to 10kHz, with some bass boost around 100Hz. Predicted in-room response is very nice, with just extra bass and a bit of roll-off above 20kHz: the reviewer calls it “nice!” Distortion is well controlled through most of the range at both test levels. Measured bass extension of 60.1Hz (-3dB).
Cons: Harmonic distortion shows a notable peak around 80Hz and a sharp spike around 350Hz, plus the woofer appears to get a bit unhappy right before handing off to the tweeter. Cumulative spectral decay (waterfall) shows some lingering resonances in the 300Hz-1kHz region. The reviewer cautions not to over-cover the cabinet/grille area with thin fabric, as it can audibly affect the top-end response. Discontinued.
Full Revel Concerta2 M16 review and specifications →
| Bass Extension (-10dB) | 41.6Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 60.1Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 14.8”H x 8.6”W x 10.8”D (374.7 x 218.4 x 273.3 mm) |
| Drivers | 25mm tweeter + 165mm woofer |
| Impedance | 6 ohms |
| Sensitivity | 86dB |
| Spinorama Preference Score | 5.06 |
| Spinorama Preference Score with Perfect Sub | 7.28 |
| Weight | 32 lbs (14.5 kg) |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
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Dynaudio Contour 20i: $5750 per pair Safe and Sound HQ eBay
Pros: Two-way design with a 1.125” Esotar2i silk dome tweeter and a 7” magnesium silicate polymer woofer in a vented enclosure. A shallow bass rolloff profile lets it sit closer to a wall (about 1-2 feet worked best in testing) without becoming boomy, and makes subwoofer integration comparatively easy. Very wide horizontal radiation (about ±70° through the midrange) gives an enveloping, spacious sound in a suitably sized room. On-axis response holds within about ±3dB overall and ±1.5dB through the midrange. Attractive build quality with a distinctive metal front baffle and gloss finish options. Long-term compression stays good up to 96dB, and short-term compression is within about 0.5dB at that same level. Measured bass extension of 56Hz (-3dB).
Cons: Notably room-dependent: sounds too bright in the lower treble in smaller rooms with close sidewalls, needing sidewall absorption to sound neutral, while performing better in larger or more open rooms without that treatment. A roughly 2dB lift in the lower treble combined with wide dispersion means more energy reflecting off sidewalls than some listeners will prefer. Relatively low sensitivity (about 82.5dB measured). Unusually sensitive to amplifier output impedance: high-output-impedance amps like tube or SET designs introduce up to a 2dB dip in the midrange, making the sound more mellow rather than “warmer,” the opposite of what many tube-amp buyers expect. Elevated harmonic and multitone distortion around 700Hz, which the reviewer attributes to typical cone-edge/surround behavior common across many driver brands, though it stands out on the measurement graphs. An upper-midrange dip around 2kHz can reduce attack and clarity on vocals and brass instruments. Vertical listening window is fairly narrow (roughly -20° to +30°): moving outside that range causes a noticeable tonal shift, unlike coaxial designs that tolerate more vertical movement.
Full Dynaudio Contour 20i review and specifications →
| Bass Extension (-10dB) | 32Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 56Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 17.4”H x 8.5”W x 14.2”D (442 x 215.9 x 360.7 mm) |
| Drivers | 18 cm MSP woofer, 28mm Esotar 2i with Hexis tweeter |
| Impedance | 4 ohms |
| Sensitivity | 82.5dB |
| Weight | 30.9 lbs (14 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Dynaudio Contour 20i vs SVS Ultra Bookshelf
- Dynaudio Contour 20i vs Technics SB-C700
- Dynaudio Contour 20i vs Definitive Technology Demand D11
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