Short answer: the Polk R200. It ranks #102 of 134 bookshelf speakers by sound quality (rated 3.2/5) at $799 and is still sold new; the KEF Q350 ranks #109 (rated 3.0/5) and is discontinued, so it is only an option used.
Buy the Polk R200. 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
| Polk R200 | KEF Q350 | |
|---|---|---|
| Price | $799.00 per pair | $699.00 per pair Discontinued |
| Ranked | #102 of 134 in Large Size Bookshelf Speakers | #109 of 134 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 50Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 74Hz (measured, Erin’s Audio Corner) | 70Hz (measured, Audio Science Review) |
| Impedance | 4 ohms nominal, 3.8 ohms minimum (measured, Erin’s Audio Corner) | 4 ohms |
| Sensitivity | 85dB | 86dB (measured, Audio Science Review) |
| Drivers | 25mm soft dome + 165mm woofer | 25mm tweeter + 165mm woofer |
| Weight | 31.3 lbs (14.2 kg) | 29.5 lbs (13.4 kg) |
| Dimensions | 14.1”H x 7.5”W x 13.9”D (359.0 x 190.0 x 353.8 mm) | 14.1”H x 8.3”W x 12”D (358.0 x 210.0 x 306.0 mm) |
| Woofer Cabinet | ported, rear | ported, rear |
| Spinorama Preference Score | 5.09 | 5.25 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.61 | 7.12 (spinorama.org) |
| DIY Kit | No | No |
Related Speaker Comparisons
More top alternatives to Polk R200:
- Polk R200 vs Perlisten S4b
- Polk R200 vs KEF Reference 1 Meta
- Polk R200 vs GR-Research NX-Studio
- Polk R200 vs AsciLab C6B
- Polk R200 vs Audio First Cadentia 3
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
Polk R200: $799.00 per pair Amazon eBay
Pros: Two-way design with a 6.5” midwoofer and 1” ring radiator tweeter, giving reasonably tight, well-defined imaging. Neutral through most of the midrange (roughly 200Hz-1kHz). On-axis response holds within about 1.5dB up to 10kHz. About 20dB of usable dynamic range (76dB to 96dB) before more significant compression sets in. Reasonably close to a 4-ohm nominal load, giving some flexibility with amplifier choice, though a dedicated 4-ohm-capable amp is still recommended. Measured bass extension of 74Hz (-3dB).
Cons: A resonance and associated distortion increase around 800Hz-1kHz creates a “tinny,” occasionally glaring quality on certain instruments and vocals, confirmed both by ear and in the frequency-response and distortion measurements. Above about 10kHz, the ring-radiator tweeter takes on an artificial, “digital-esque” quality, then falls off quickly above 16kHz. F3 of 74Hz and F10 of 50Hz mean there’s essentially no meaningful bass “thump” below about 60Hz: a subwoofer is strongly recommended even just to restore basic kick-drum presence. The ring radiator tweeter’s dispersion narrows sharply above about 8kHz, so the speaker should be aimed close to on-axis (no more than 5-10° of toe-out). Vertical listening position is fairly critical: moving more than a few degrees above or below the tweeter line causes a noticeable timbre shift due to a gap in the crossover region. Multitone distortion spikes substantially (to around 10%) in the 600Hz-1kHz region at higher output levels (around 96dB/1m), meaning the glare gets worse the louder it’s played. At the highest tested output (102dB, 26dB of dynamic range), the woofer shows clear signs of struggling; crossing to a subwoofer around 80-100Hz helps prevent bottoming out but doesn’t fully eliminate the compression.
Full Polk R200 review and specifications →
| Bass Extension (-10dB) | 50Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 74Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 14.1”H x 7.5”W x 13.9”D (359.0 x 190.0 x 353.8 mm) |
| Drivers | 25mm soft dome + 165mm woofer |
| Impedance | 4 ohms nominal, 3.8 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 85dB |
| Spinorama Preference Score | 5.09 |
| Spinorama Preference Score with Perfect Sub | 7.61 |
| Weight | 31.3 lbs (14.2 kg) |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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