Short answer: the KEF Reference 1 Meta. It ranks #3 of 141 bookshelf speakers by sound quality (rated 4.8/5) at $9,999.98 and is still sold new; the KEF Q350 ranks #115 (rated 3.0/5) and is discontinued, so it is only an option used.
The KEF Reference 1 Meta is the more accurate, deeper-bass choice. 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. Its measured preference score, a predictor of how neutral it sounds, is 6.48 against 5.25 for the KEF Q350. Its bass reaches about 52Hz before falling 3dB, against 70Hz for the KEF Q350. Watch for: At roughly $10000/pair, nearly four times the cost of the similarly-sized KEF R3.
What the KEF Q350 does well: CEA2034 spinorama shows a reasonably flat on-axis response with excellent directivity, aided by the coaxial Uni-Q driver. The catch: Two resonances at 700Hz and 1.2kHz show up on-axis, alongside an upper-bass boost.
Buy the KEF Reference 1 Meta. It is rated higher for sound quality, and the KEF Q350 is discontinued, so it is only available used.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| KEF Reference 1 Meta | KEF Q350 | |
|---|---|---|
| Price | $9999.98 per pair | $699.00 per pair Discontinued |
| Ranked | #3 of 141 in Large Size Bookshelf Speakers | #115 of 141 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 32Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 52Hz (measured, Erin’s Audio Corner) | 70Hz (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) | 14.1”H x 8.3”W x 12”D (358.0 x 210.0 x 306.0 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 | 25mm tweeter + 165mm woofer |
| Sensitivity | 82.5dB (measured average, Erin’s Audio Corner) | 86dB (measured, Audio Science Review) |
| Weight | 40.1 lbs (18.2 kg) each | 29.5 lbs (13.4 kg) |
| Woofer Cabinet | ported, rear | ported, rear |
| Spinorama Preference Score | 6.48 | 5.25 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 8.29 | 7.12 (spinorama.org) |
| DIY Kit | No | No |
Related Speaker Comparisons
How KEF Reference 1 Meta compares with other leading options:
- 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 4, 2026 at 9:58 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
Larger models: the KEF Reference 3 Meta (rated 4.6/5) and the KEF Reference 5 Meta (estimated 4.8/5).
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 Revel M106
- KEF Reference 1 Meta vs KEF R3 Meta
- KEF Reference 1 Meta vs KEF Q Concerto Meta
- See all 49 comparisons
KEF Q350: $699.00 per pair Discontinued Amazon eBay
Newer model: the KEF Q3 Meta, ranked higher, rated 3.4/5.
Smaller model: the KEF Q150 (rated 3.7/5).
Pros: CEA2034 spinorama shows a reasonably flat on-axis response with excellent directivity, aided by the coaxial Uni-Q driver. Vertical directivity is better than most non-coaxial two-way speakers, another benefit of the concentric design. Measured bass extension of 70Hz (-3dB), with a measured sensitivity of 86dB.
Cons: Two resonances at 700Hz and 1.2kHz show up on-axis, alongside an upper-bass boost. Predicted in-room response looks a bit boomy as a result. Distortion climbs substantially in the 100Hz-1kHz range at 96dB SPL/1m, with a distinct resonance-driven peak around 900Hz-1kHz at both test levels. Discontinued.
Full KEF Q350 review and specifications →
| Bass Extension (-10dB) | 38Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 70Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 14.1”H x 8.3”W x 12”D (358.0 x 210.0 x 306.0 mm) |
| Drivers | 25mm tweeter + 165mm woofer |
| Impedance | 4 ohms |
| Sensitivity | 86dB (measured, Audio Science Review) |
| Spinorama Preference Score | 5.25 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.12 (spinorama.org) |
| Weight | 29.5 lbs (13.4 kg) |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons