KEF Q350 vs Polk Reserve R100
The KEF Q350 is more sensitive (87 dB vs 86 dB), so it plays louder per watt. The Polk Reserve R100 plays lower (58 Hz vs 63 Hz) and costs less ($699 vs $800).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| Q350 | Reserve R100 | |
|---|---|---|
| Receivers and amps that drive it | 29 of 29 | 29 of 29 |
Specs side by side
Values that differ are bold. A dash means that model doesn't publish the spec.
| Q350 | Reserve R100 | |
|---|---|---|
| Impedance | 8 Ω | 8 Ω |
| Sensitivity | 87 dB (2.83 V, 1 m) | 86 dB (2.83 V, 1 m) |
| Low end | 63 Hz | 58 Hz |
| Drivers | 1 × 25 mm, 1 × 165 mm | 1 × 25 mm, 1 × 133 mm |
| Size | 8×14×12 in | 6×13×10 in |
| Recommended amplifier power | 15–120 W | 30–150 W |
| Weight | 7.6 kg (16.8 lb) | 5.5 kg (12.1 lb) |
| MSRP | $800 a pair (MSRP, August 2025) | $699 a pair (MSRP, September 2026) |
Every spec and pairing: KEF Q350, Polk Reserve R100.
Try either one in your own room.
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References
- KEF Q350: Owner's manual, assets.kef.com, retrieved September 15, 2026
- KEF Q350: Manufacturer product page, web.archive.org, retrieved September 15, 2026
- Polk Reserve R100: Owner's manual, polkaudio.com, retrieved September 15, 2026
- Polk Reserve R100: Manufacturer product page, polkaudio.com, retrieved September 15, 2026
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