Short answer: the KEF Reference 1 Meta. It ranks #3 of 100 bookshelf speakers by sound quality; the Revel M106 ranks #9.
What the KEF Reference 1 Meta gets right: Meta technology places a Helmholtz-style resonator behind the tweeter to absorb rear-radiated resonance, and pair matching is within about ±0.5dB - unusually tight for a passive speaker. The catch: At roughly $9,000/pair, nearly four times the cost of the similarly-sized KEF R3.
On the Revel M106 side: 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. Set against that: Some directivity error and response variation shows up in the crossover region.
Buy the KEF Reference 1 Meta if sound quality matters more than the price. Buy the Revel M106 if the price matters more than sound quality.
Specifications Side By Side
| KEF Reference 1 Meta | Revel M106 | |
|---|---|---|
| Price | $9999.98 | Discontinued |
| Ranked | #3 of 100 in Large Size Bookshelf Speakers | #9 of 100 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 32Hz (measured, Erin’s Audio Corner) | 43Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 52Hz (measured, Erin’s Audio Corner) | 60Hz (measured, Audio Science Review) |
| Dimensions | 17.3"H x 8.1"W x 16.6"D (439.4 x 205.7 x 421.6 mm) | 15"H x 8.3"W x 11"D (381.0 x 210.8 x 279.4 mm) |
| Impedance | 4 ohms nominal, 2.9 ohms minimum (measured, Erin’s Audio Corner) | 4 ohms |
| Drivers | 165 mm (6.5 in.) aluminium cone woofer, 125 mm (5 in.) aluminium cone midrange, 25 mm (1 in.) aluminium dome with MAT tweeter | 6.5" (16.5 cm) Aluminum Cone, Cast-frame Woofer, 1" (2.5 cm) Aluminum Tweeter with Acoustic Lens Waveguide |
| Sensitivity | 82.5dB (measured average, Erin’s Audio Corner) | 86dB (measured, Audio Science Review) |
| Weight | 40.1 lbs / 18.2 kg each | 9.9 lbs / 4.5 kg |
| Woofer Cabinet | ported, rear | ported, rear |
| Discontinued | - | Yes |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- Perlisten S4b vs Audio First Cadentia 3
- Perlisten S4b vs Dynaudio Heritage Special
- Audio First Cadentia 3 vs Dynaudio Heritage Special
- Perlisten S4b vs KEF Reference 1 Meta
- KEF Reference 1 Meta vs Arendal 1528 Monitor 8
The Two Speakers In Full
KEF Reference 1 Meta: $9999.98 Kef
Pros: Meta technology places a Helmholtz-style resonator behind the tweeter to absorb rear-radiated resonance, and pair matching is within about ±0.5dB - unusually tight for a passive speaker. Sounds most neutral pointed straight on-axis rather than toed out, with no 5-8kHz harshness of the kind that plagues many speakers marketed as “detailed.” One of the most three-dimensional soundstages the reviewer has heard from a passive speaker, beaten only by $13,000+ active Xmachina Pulsar MK2 monitors (though this speaker’s tonality was preferred). Distortion stays below 1% down to about 70Hz at 86dB, and below 1% to ~150Hz / below 3% to ~70Hz even at 96dB. High-frequency response holds essentially flat as volume increases - no audible crossover or voice-coil compression - giving strong dynamic range up to its output limit (about 98dB at 3.5 meters before the woofer starts running out of excursion). All-passive design still measures ±1.5dB from 80Hz to 16kHz with zero DSP. Swappable dual-port system (long port for near-wall placement, short port for out-into-the-room placement with more bass extension) lets you tune bass behavior to where the speaker actually sits.
Cons: At roughly $9,000/pair, nearly four times the cost of the similarly-sized KEF R3. Radiation narrows from about ±60° in the midrange to ±50° at high frequency - tighter than the reviewer’s ~70° preference (though wider than the R3’s ~±40°); toeing the speakers out for more width sacrifices treble energy that then needs EQ to restore. Moderate-to-low sensitivity (measured 83-84dB) calls for a solid amplifier. In-room bass only extends to about 40Hz, so a subwoofer is worth adding for bass-heavy material at higher volumes or listening beyond 3-4 meters. Minor directivity mismatch around 2kHz shows up in measurements, likely a vertical diffraction effect that wasn’t fully explained. Bass port choice (long vs. short) meaningfully changes the sound depending on placement, so the wrong port for your room can leave the bass sounding off until you experiment.
Full KEF Reference 1 Meta review and specifications →
| Bass Extension (-10dB) | 32Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 52Hz (measured, Erin's Audio Corner) |
| Dimensions | 17.3"H x 8.1"W x 16.6"D (439.4 x 205.7 x 421.6 mm) |
| Drivers | 165 mm (6.5 in.) aluminium cone woofer, 125 mm (5 in.) aluminium cone midrange, 25 mm (1 in.) aluminium dome with MAT tweeter |
| Impedance | 4 ohms nominal, 2.9 ohms minimum (measured, Erin's Audio Corner) |
| Sensitivity | 82.5dB (measured average, Erin's Audio Corner) |
| Weight | 40.1 lbs / 18.2 kg each |
| Woofer Cabinet | ported, rear |
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- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- KEF Reference 1 Meta vs GR-Research NX-Studio
- KEF Reference 1 Meta vs Perlisten S4b
- KEF Reference 1 Meta vs March Audio Sointuva AWG
- KEF Reference 1 Meta vs AsciLab C6B
- KEF Reference 1 Meta vs KEF R3 Meta
- KEF Reference 1 Meta vs KEF Q Concerto Meta
- KEF Reference 1 Meta vs Buchardt Audio E50
- KEF Reference 1 Meta vs Arendal 1528 Monitor 8
Revel M106: Discontinued
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.
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) |
| Dimensions | 15"H x 8.3"W x 11"D (381.0 x 210.8 x 279.4 mm) |
| Discontinued | Yes |
| 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) |
| Weight | 9.9 lbs / 4.5 kg |
| Woofer Cabinet | ported, rear |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons