Short answer: the Revel M106 for a cleaner crossover, the KEF R3 for a true three-way stand-mount. The R3 pairs a 6.5-inch woofer with KEF’s 5-inch Uni-Q midrange and 1-inch tweeter, but its low-frequency alignment rolls gradually rather than delivering high-output sub-bass, with KEF specifying 58Hz +/-3dB and an 80Hz subwoofer crossover supported. The M106 is fairly even on-axis, though it shows directivity error in the crossover region.
Buy the KEF R3 new; the Revel M106 is no longer sold new, so it only makes sense as a used find.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Revel M106 | KEF R3 | |
|---|---|---|
| Price | Discontinued | $2,200 per pair |
| Ranked | #9 of 134 in Large Size Bookshelf Speakers | #15 of 134 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 43Hz (measured, Audio Science Review) | 35.2Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 60Hz (measured, Audio Science Review) | Approximately 58Hz (manufacturer specified; consistent with Erin’s measured roll-off) |
| Impedance | 4 ohms | 8 ohms nominal; suitable for Erin’s 4/8-ohm-rated amplifier |
| Sensitivity | 86dB (measured, Audio Science Review) | Approximately 86-87dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Drivers | 6.5” (16.5 cm) Aluminum Cone, Cast-frame Woofer, 1” (2.5 cm) Aluminum Tweeter with Acoustic Lens Waveguide | 1” tweeter coaxial with 5” midrange; 6.5” woofer |
| Weight | 9.9 lbs (4.5 kg) | 29.9 lbs (13.55 kg) each |
| Dimensions | 15”H x 8.3”W x 11”D (381.0 x 210.8 x 279.4 mm) | 16.6”H x 7.9”W x 13.2”D |
| Woofer Cabinet | ported, rear | ported, rear Flexible Port |
| Spinorama Preference Score | 5.62 | 6.2 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.87 | 7.97 (spinorama.org) |
| DIY Kit | No | No |
Related Speaker Comparisons
More top alternatives to Revel M106:
- TAD Compact Reference One (CR1TX) vs Revel M106
- KEF Reference 1 Meta vs Revel M106
- Revel M106 vs KEF R3 Meta
- Revel M106 vs KEF Q Concerto Meta
- Revel M106 vs Wharfedale Aura 2
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The Two Speakers In Full
Revel M106 Discontinued eBay
Newer model: the Revel M126Be, ranked lower, rated 4.3/5.
Pros: CEA2034 spinorama shows a fairly even on-axis response with no obvious resonances, and a listening window that sits comfortably above the on-axis curve. Predicted in-room response is called “near ideal” by the reviewer, with a smooth downward slope from bass to treble. Distortion at 96dB SPL/1m stays well controlled through the midrange and treble. Measured bass extension of 60Hz (-3dB), with a measured sensitivity of 86dB.
Cons: Some directivity error and response variation shows up in the crossover region. Horizontal beamwidth of about ±50 degrees is on the narrower side. Vertical directivity requires staying within about ±20 degrees of the reference axis for accurate tonal balance. Minimum impedance dips to 4.6 ohms with several peaks, a moderately demanding load for a compact bookshelf speaker. Discontinued.
Full Revel M106 review and specifications →
| Bass Extension (-10dB) | 43Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 60Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 15”H x 8.3”W x 11”D (381.0 x 210.8 x 279.4 mm) |
| Drivers | 6.5” (16.5 cm) Aluminum Cone, Cast-frame Woofer, 1” (2.5 cm) Aluminum Tweeter with Acoustic Lens Waveguide |
| Impedance | 4 ohms |
| Sensitivity | 86dB (measured, Audio Science Review) |
| Spinorama Preference Score | 5.62 |
| Spinorama Preference Score with Perfect Sub | 7.87 |
| Weight | 9.9 lbs (4.5 kg) |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Revel M106 vs KEF R3 Meta
- Revel M106 vs KEF Q Concerto Meta
- Revel M106 vs Wharfedale Aura 2
- Revel M106 vs KEF Reference 1 Meta
- Revel M106 vs TAD Compact Reference One (CR1TX)
- Revel M106 vs Wharfedale Super Linton
- Revel M106 vs Ascend Acoustics Sierra-LX
- Revel M106 vs ELAC Debut 3.0 DB63
- See all 10 comparisons
KEF R3: $2,200 per pair Amazon eBay
Pros: True three-way stand-mount with a 6.5-inch woofer below KEF’s 5-inch Uni-Q midrange/1-inch tweeter. Erin measured approximately 86-87dB/2.83V/1m sensitivity, exceptionally low sub-1% distortion at 86dB and orderly directivity in both planes. The coaxial geometry maintains image stability across seats, while Flexible Port Technology avoids the strong midrange port resonance common to rear-vented competitors. A 110W Parasound drove it successfully in Erin’s listening. Measured bass extension of 35.2Hz (-10dB), with a measured sensitivity of 87dB.
Cons: The low-frequency alignment rolls gradually rather than delivering high-output sub-bass; KEF specifies 58Hz +/-3dB and Erin’s high-level data supports using an 80Hz subwoofer crossover. Narrow high-frequency features and natural Uni-Q narrowing toward the top octave make toe angle audible, although off-axis tracking remains smooth. Sensitivity is moderate, the cabinet weighs almost 30 lb, and this original R3 lacks the Meta successor’s MAT absorber.
Full KEF R3 review and specifications →
| Bass Extension (-10dB) | 35.2Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | Approximately 58Hz (manufacturer specified; consistent with Erin’s measured roll-off) |
| DIY Kit | No |
| Dimensions | 16.6”H x 7.9”W x 13.2”D |
| Drivers | 1” tweeter coaxial with 5” midrange; 6.5” woofer |
| Impedance | 8 ohms nominal; suitable for Erin’s 4/8-ohm-rated amplifier |
| Sensitivity | Approximately 86-87dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 6.2 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.97 (spinorama.org) |
| Weight | 29.9 lbs (13.55 kg) each |
| Woofer Cabinet | ported, rear Flexible Port |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: KEF R3 Review More from Erin’s Audio Corner →
- Erin’s Audio Corner Website: KEF R3
- Audio Science Review Measurements More from Audio Science Review →
- Audio Science Review Measurements (spinorama.org)
- Erin’s Audio Corner: Which is Better for Home Theater: (3) Kef R3 or (3) Kef R2c Center Channel speakers?
- Erin’s Audio Corner: KEF R3 vs R3 Meta vs Reference 1 Meta. Why such a big price gap?
- Head-to-Head Comparisons