Short answer: the ELAC Uni-Fi Reference UBR62. It ranks #56 of 141 bookshelf speakers by sound quality (rated 4.1/5) at $1,199 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 ELAC Uni-Fi Reference UBR62 is the better-sounding, deeper-bass pick. True three-way stand-mount using a 1-inch tweeter concentrically mounted in a 4-inch aluminum midrange plus a dedicated 6.5-inch aluminum woofer. Its bass reaches about 58.6Hz before falling 3dB, against 70Hz for the KEF Q350. The tradeoff: Erin measured very low 83dB/2.83V/1m sensitivity; his 110W Parasound was insufficient for the high-level test and the more powerful HINT 6 was needed.
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. Watch for: Two resonances at 700Hz and 1.2kHz show up on-axis, alongside an upper-bass boost.
Buy the ELAC Uni-Fi Reference UBR62. It is rated higher for sound quality and still sold new, while the KEF Q350 is discontinued.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| ELAC Uni-Fi Reference UBR62 | KEF Q350 | |
|---|---|---|
| Price | $1,199 per pair | $699.00 per pair Discontinued |
| Ranked | #56 of 141 in Large Size Bookshelf Speakers | #115 of 141 in Large Size Bookshelf Speakers |
| Bass Extension | 41Hz manufacturer specified; Erin’s response-linearity graph shows limited high-output bass headroom | - |
| Bass Extension (-3dB) | 58.6Hz (measured, Erin’s Audio Corner) | 70Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 41.9Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Audio Science Review) |
| Sensitivity | 83dB/2.83V/1m (measured, Erin’s Audio Corner) | 86dB (measured, Audio Science Review) |
| Impedance | 4 ohms minimum near 50Hz (measured, Erin’s Audio Corner) | 4 ohms |
| Drivers | 1” tweeter coaxial with 4” midrange; 6.5” woofer | 25mm tweeter + 165mm woofer |
| Dimensions | 14.1”H x 8.2”W x 13.1”D | 14.1”H x 8.3”W x 12”D (358.0 x 210.0 x 306.0 mm) |
| Woofer Cabinet | ported, dual front slot vents | ported, rear |
| Weight | 23.5 lbs (10.68 kg) each | 29.5 lbs (13.4 kg) |
| Spinorama Preference Score | 5.44 (measured, spinorama.org) | 5.25 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.7 (measured, spinorama.org) | 7.12 (spinorama.org) |
| DIY Kit | No | No |
Related Speaker Comparisons
How ELAC Uni-Fi Reference UBR62 compares with other leading options:
- KEF Reference 1 Meta vs ELAC Uni-Fi Reference UBR62
- AsciLab C6B vs ELAC Uni-Fi Reference UBR62
- KEF R3 Meta vs ELAC Uni-Fi Reference UBR62
- KEF Q Concerto Meta vs ELAC Uni-Fi Reference UBR62
- KEF R3 vs ELAC Uni-Fi Reference UBR62
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
ELAC Uni-Fi Reference UBR62: $1,199 per pair Amazon eBay
Pros: True three-way stand-mount using a 1-inch tweeter concentrically mounted in a 4-inch aluminum midrange plus a dedicated 6.5-inch aluminum woofer. Erin found the directivity and overall tonality well controlled, with dual front slot vents minimizing placement sensitivity and cabinet bracing suppressing obvious coloration. The mostly 5-ohm-or-higher load is manageable for a genuinely 4-ohm-capable amplifier, and the coherent concentric upper range supports stable imaging across seats. Measured bass extension of 58.6Hz (-3dB), with a measured sensitivity of 83dB.
Cons: Erin measured very low 83dB/2.83V/1m sensitivity; his 110W Parasound was insufficient for the high-level test and the more powerful HINT 6 was needed. Impedance reaches 4 ohms near 50Hz (Erin), while woofer excursion and bass output were less capable than expected for the cabinet size. A broad 500-700Hz rise and associated lower/female-vocal coloration were audible, and the slightly subdued listening-window treble is necessary to avoid an overly bright in-room balance rather than evidence of ruler-flat axial tuning.
Full ELAC Uni-Fi Reference UBR62 review and specifications →
| Bass Extension | 41Hz manufacturer specified; Erin’s response-linearity graph shows limited high-output bass headroom |
|---|---|
| Bass Extension (-10dB) | 41.9Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 58.6Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 14.1”H x 8.2”W x 13.1”D |
| Drivers | 1” tweeter coaxial with 4” midrange; 6.5” woofer |
| Impedance | 4 ohms minimum near 50Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 83dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.44 (measured, spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.7 (measured, spinorama.org) |
| Weight | 23.5 lbs (10.68 kg) each |
| Woofer Cabinet | ported, dual front slot vents |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- ELAC Uni-Fi Reference UBR62 vs Power Sound Audio MT-110-M
- ELAC Uni-Fi Reference UBR62 vs Revel Concerta2 M16
- ELAC Uni-Fi Reference UBR62 vs ELAC DBR62
- ELAC Uni-Fi Reference UBR62 vs Yamaha NS-800A
- ELAC Uni-Fi Reference UBR62 vs Definitive Technology Demand D11
- ELAC Uni-Fi Reference UBR62 vs Technics SB-C700
- ELAC Uni-Fi Reference UBR62 vs Dynaudio Contour 20i
- ELAC Uni-Fi Reference UBR62 vs JBL HDI-1600
- See all 29 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