Short answer: the ELAC Debut 2.0 B6.2. It ranks #136 of 203 bookshelf speakers by sound quality (rated 3.5/5) at $329 and is still sold new; the KEF Q350 ranks #171 (rated 3.0/5) and is discontinued, so it is only an option used. The KEF Q350’s replacement, the KEF Q3 Meta, is rated 3.4/5.
The ELAC Debut 2.0 B6.2 is the better-sounding option. Reasonably flat on-axis and listening-window response with reasonably even horizontal directivity, holding about ±60° up to roughly 8kHz for consistent stereo width whether aimed directly at the listener or toed out. Watch for: A good size resonant peak around 700Hz stands out from an otherwise smooth response and lingers in cumulative spectral decay (waterfall) measurements: in one reviewer’s sighted A/B test, reducing it by about 5dB via EQ made a noticeable but not dramatic difference.
The KEF Q350 is the more accurate choice. CEA2034 spinorama shows a reasonably flat on-axis response with excellent directivity, aided by the coaxial Uni-Q driver. Its measured preference score, a predictor of how neutral it sounds, is 5.25 against 4.75 for the ELAC Debut 2.0 B6.2. The tradeoff: Two resonances at 700Hz and 1.2kHz show up on-axis, alongside an upper-bass boost.
Buy the ELAC Debut 2.0 B6.2. It is rated higher for sound quality; the KEF Q350 is no longer sold new.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| ELAC Debut 2.0 B6.2 | KEF Q350 | |
|---|---|---|
| Price | $329.00 per pair | $699.00 per pair Discontinued |
| Ranked | #136 of 203 in Large Size Bookshelf Speakers | #171 of 203 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 40Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 64Hz (measured, Erin’s Audio Corner) | 70Hz (measured, Audio Science Review) |
| Impedance | 6 ohms nominal, 5.2 ohms minimum (measured, Erin’s Audio Corner) | 4 ohms |
| Sensitivity | 86.5dB (measured, Audio Science Review) | 86dB (measured, Audio Science Review) |
| Drivers | 25mm tweeter + 165mm woofer | 25mm tweeter + 165mm woofer |
| Weight | 29.1 lbs (13.2 kg) | 29.5 lbs (13.4 kg) |
| Dimensions | 14.8”H x 7.7”W x 10.6”D (375.0 x 195.0 x 268.0 mm) | 14.1”H x 8.3”W x 12”D (358.0 x 210.0 x 306.0 mm) |
| Woofer Cabinet | ported, front | ported, rear |
| Spinorama Preference Score | 4.75 (spinorama.org) | 5.25 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.0 (spinorama.org) | 7.12 (spinorama.org) |
| DIY Kit | No | No |
Related Speaker Comparisons
How ELAC Debut 2.0 B6.2 compares with other leading options:
- ELAC Debut 2.0 B6.2 vs Perlisten S4b
- ELAC Debut 2.0 B6.2 vs KEF Reference 1 Meta
- ELAC Debut 2.0 B6.2 vs GR-Research NX-Studio
- AsciLab C6B vs ELAC Debut 2.0 B6.2
- ELAC Debut 2.0 B6.2 vs Audio First Cadentia 3
Prices on this page were last checked October 7, 2026 at 9:25 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
ELAC Debut 2.0 B6.2: $329.00 per pair Amazon Crutchfield eBay
Newer model: the ELAC Debut 3.0 DB63, ranked higher, rated 4.2/5.
Same family: the ELAC Debut 2.0 B5.2 (smaller bookshelf, rated 3.2/5).
Pros: Reasonably flat on-axis and listening-window response with reasonably even horizontal directivity, holding about ±60° up to roughly 8kHz for consistent stereo width whether aimed directly at the listener or toed out. Its larger-than-typical woofer lets it play very loud with minimal distortion, staying under about 1% THD down to 50Hz at 86dB, and minimum impedance stays a comfortable 5-6 ohms. In-room bass extension reaches about 50Hz without much trouble, enough for a solid kick-drum sound. Takes equalization very well: correcting the on-axis response doesn’t cost sensitivity through the midrange, and the underlying directivity behavior (diffraction, vertical mismatch) is mild enough that EQ alone gets most of the way to a well-balanced sound. Vertical tolerance is asymmetric and fairly forgiving: about 10° above the tweeter axis and 20° below it before tonal balance meaningfully shifts. One reviewer called it “a good speaker” with “a good price” rather than just good-for-the-price, and found it fairly neutral overall in-room. Measured bass extension of 64Hz (-3dB), with a measured sensitivity of 86.5dB.
Cons: A good size resonant peak around 700Hz stands out from an otherwise smooth response and lingers in cumulative spectral decay (waterfall) measurements: in one reviewer’s sighted A/B test, reducing it by about 5dB via EQ made a noticeable but not dramatic difference. Directivity error shows up around 3.3kHz, and the upper-midrange around 4-6kHz stood out as edgy and sharp, almost sibilant at times, in casual listening: the predicted in-room response shows a lack of energy between 1-2kHz and a bit too much above that, which one reviewer thought would sound bright. Distortion at 96dB SPL/1m shows two harmonic peaks the reviewer says “should not be there,” one from woofer breakup around 400Hz and another around 7-8kHz from the tweeter, and multitone distortion approaches 10% in the 500-800Hz range at that output level. Real compression shows up even at moderate volume and worsens at 96dB and above, with the woofer clearly giving up around 60-70Hz: a subwoofer is recommended for anyone wanting to listen loud, since running it full-range at high output costs real dynamic range in the midbass and bass. Don’t place it close to a wall: boundary reinforcement adds a midbass bump that undoes the otherwise smooth, linear response. Getting the best out of it takes EQ (taming the 700Hz peak, filling in the 1-2kHz dip, and trimming the highs).
Full ELAC Debut 2.0 B6.2 review and specifications →
| Bass Extension (-10dB) | 40Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 64Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 14.8”H x 7.7”W x 10.6”D (375.0 x 195.0 x 268.0 mm) |
| Drivers | 25mm tweeter + 165mm woofer |
| Impedance | 6 ohms nominal, 5.2 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 86.5dB (measured, Audio Science Review) |
| Spinorama Preference Score | 4.75 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.0 (spinorama.org) |
| Weight | 29.1 lbs (13.2 kg) |
| Woofer Cabinet | ported, front |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- ELAC Debut 2.0 B6.2 vs SVS Prime Bookshelf
- ELAC Debut 2.0 B6.2 vs Dynaudio Special Forty
- ELAC Debut 2.0 B6.2 vs Infinity IL10
- ELAC Debut 2.0 B6.2 vs GR-Research X-LS Encore
- ELAC Debut 2.0 B6.2 vs KEF Q3 Meta
- ELAC Debut 2.0 B6.2 vs Polk Monitor XT20
- ELAC Debut 2.0 B6.2 vs Parts Express Samba MT
- ELAC Debut 2.0 B6.2 vs Sonus Faber Lumina II
- See all 63 comparisons
KEF Q350: $699.00 per pair Discontinued Amazon eBay
Newer model: the KEF Q3 Meta, ranked higher, rated 3.4/5.
Same family: the KEF Q150 (smaller bookshelf, rated 3.7/5), the KEF Q250c (smaller center, rated 3.9/5) and the KEF Q650c (larger center, 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