Short answer: the Revel M106 for an even on-axis response, the KEF Reference 1 Meta for precise pair matching. The M106’s CEA2034 spinorama is fairly even on-axis with no obvious resonances and a listening window above the on-axis curve, though some directivity error and response variation shows up in the crossover region. The Reference 1 Meta matches pairs within about ±0.5dB via a Helmholtz-style resonator, but it costs $9,999.98.
Buy the KEF Reference 1 Meta. It is rated higher for sound quality; the Revel M106 is no longer sold new.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| KEF Reference 1 Meta | Revel M106 | |
|---|---|---|
| Price | $9999.98 per pair | Discontinued |
| Ranked | #3 of 134 in Large Size Bookshelf Speakers | #9 of 134 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 |
| Spinorama Preference Score | 6.48 | 5.62 |
| Spinorama Preference Score with Perfect Sub | 8.29 | 7.87 |
| DIY Kit | No | No |
Related Speaker Comparisons
More worthwhile head-to-heads for KEF Reference 1 Meta:
- Perlisten S4b vs KEF Reference 1 Meta
- GR-Research NX-Studio vs KEF Reference 1 Meta
- KEF Reference 1 Meta vs March Audio Sointuva AWG
- AsciLab C6B vs KEF Reference 1 Meta
- Audio First Cadentia 3 vs KEF Reference 1 Meta
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
KEF Reference 1 Meta: $9999.98 per pair KEF eBay
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. Measured bass extension of 52Hz (-3dB), with a measured sensitivity of 82.5dB.
Cons: At roughly $10000/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) |
| DIY Kit | No |
| 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) |
| Spinorama Preference Score | 6.48 |
| Spinorama Preference Score with Perfect Sub | 8.29 |
| Weight | 40.1 lbs (18.2 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: First Look!! Kef Reference 1 META Bookshelf Speaker Review. More from Erin’s Audio Corner →
- Erin’s Audio Corner Website KEF Reference 1 Meta Review
- Erin’s Audio Corner: My Top 5 Speakers at Any Price
- Erin’s Audio Corner Measurements (spinorama.org)
- Erin’s Audio Corner: KEF R3 vs R3 Meta vs Reference 1 Meta. Why such a big price gap?
- 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 Audio First Cadentia 3
- KEF Reference 1 Meta vs KEF R3 Meta
- KEF Reference 1 Meta vs KEF Q Concerto Meta
- KEF Reference 1 Meta vs Wharfedale Aura 2
- See all 47 comparisons
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