Short answer: the KEF Q350, because the Aperion Verus V8B scoops out the midrange. The KEF’s Uni-Q coaxial driver gives a reasonably flat on-axis response with excellent directivity, though two resonances at 700Hz and 1.2kHz show up on-axis alongside an upper-bass boost. The Aperion’s 8-inch mid-woofer stays clean and low in distortion, but a large scoop from about 100Hz-500Hz strips the “meat” from vocals and leaves it dull and subdued.
Buy the Aperion Audio Verus V8B, since the KEF Q350 is discontinued and only worth hunting down used.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| KEF Q350 | Aperion Audio Verus V8B | |
|---|---|---|
| Price | $699.00 per pair Discontinued | $1,499 per pair |
| Ranked | #109 of 134 in Large Size Bookshelf Speakers | #117 of 134 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 38Hz (measured, Audio Science Review) | 39Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 70Hz (measured, Audio Science Review) | 55Hz (measured, Erin’s Audio Corner) |
| Impedance | 4 ohms | 6 ohms nominal (manufacturer spec), 5.7 ohms nominal / ~3 ohms EPDR minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 86dB (measured, Audio Science Review) | 85dB (measured average, Erin’s Audio Corner; 88dB manufacturer specified) |
| Drivers | 25mm tweeter + 165mm woofer | 8” Woven Kevlar long-throw woofer, 1.1” Custom Aperion ASR dome tweeter with ferrofluid |
| Weight | 29.5 lbs (13.4 kg) | 28 lbs (12.7 kg) each |
| Dimensions | 14.1”H x 8.3”W x 12”D (358.0 x 210.0 x 306.0 mm) | 17”H x 10.6”W x 13”D |
| Woofer Cabinet | ported, rear | ported, rear |
| Spinorama Preference Score | 5.25 (spinorama.org) | 3.65 |
| Spinorama Preference Score with Perfect Sub | 7.12 (spinorama.org) | 5.79 |
| DIY Kit | No | No |
| Frequency Response | - | 30Hz - 35kHz ±3dB (manufacturer specified) |
| Recommended Power | - | 20-150W |
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The Two Speakers In Full
KEF Q350: $699.00 per pair Discontinued Amazon eBay
Newer model: the KEF Q3 Meta, ranked higher, rated 3.4/5.
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
Aperion Audio Verus V8B: $1,499 per pair Aperion Audio eBay
Pros: Low-distortion bass that reaches a reasonable level for an 8-inch mid-woofer: the reviewer had no complaints about bass cleanliness, just extension. Wide-enough horizontal radiation to give some room involvement without being uncomfortably narrow. HDF (high-density fiberboard) cabinet construction instead of the more typical MDF. Nice aesthetic in the gloss cherry finish (also available in black); solidly built at nearly 28 lbs each. Measured bass extension of 55Hz (-3dB), with a measured sensitivity of 85dB.
Cons: A large mid-range scoop from about 100Hz-500Hz strips out the “meat” of male and female vocals, giving the speaker an overall dull, subdued character the reviewer specifically didn’t care for. Two back-to-back resonant peaks (around 4kHz and 10kHz) cause sibilance and an overbearing hi-hat crispness on some tracks; toeing the speakers 30 degrees off-axis helps a little but doesn’t remove the underlying resonances. At $1499/pair, the reviewer felt EQ shouldn’t be necessary to get a satisfying result out of the box. Minimum impedance (EPDR) dips to around 3 ohms despite a 5.7-ohm nominal rating, so a Class AB amplifier needs to be 4-ohm capable. Bass extension is modest for an 8” driver: measured F3 55Hz/F10 39Hz, getting into the mid-40s Hz in-room rather than truly deep bass.
Full Aperion Audio Verus V8B review and specifications →
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 55Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 17”H x 10.6”W x 13”D |
| Drivers | 8” Woven Kevlar long-throw woofer, 1.1” Custom Aperion ASR dome tweeter with ferrofluid |
| Frequency Response | 30Hz - 35kHz ±3dB (manufacturer specified) |
| Impedance | 6 ohms nominal (manufacturer spec), 5.7 ohms nominal / ~3 ohms EPDR minimum (measured, Erin’s Audio Corner) |
| Recommended Power | 20-150W |
| Sensitivity | 85dB (measured average, Erin’s Audio Corner; 88dB manufacturer specified) |
| Spinorama Preference Score | 3.65 |
| Spinorama Preference Score with Perfect Sub | 5.79 |
| Weight | 28 lbs (12.7 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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