KEF Q3 Meta vs Polk Reserve R100
The KEF Q3 Meta is more sensitive (87 dB vs 86 dB), so it plays louder per watt and plays lower (49 Hz vs 58 Hz). The Polk Reserve R100 is an easier load for a receiver (8 Ω vs 4 Ω) and costs less ($699 vs $900).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| Q3 Meta | Reserve R100 | |
|---|---|---|
| Receivers and amps that drive it | 28 of 29, 14 after a setting change | 29 of 29 |
Specs side by side
Values that differ are bold. A dash means that model doesn't publish the spec.
| Q3 Meta | Reserve R100 | |
|---|---|---|
| Impedance | 4 Ω | 8 Ω |
| Sensitivity | 87 dB (2.83 V, 1 m) | 86 dB (2.83 V, 1 m) |
| Low end | 49 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 | 15–150 W | 30–150 W |
| Weight | 8.2 kg (18.1 lb) | 5.5 kg (12.1 lb) |
| MSRP | $900 a pair (MSRP, September 2026) | $699 a pair (MSRP, September 2026) |
Every spec and pairing: KEF Q3 Meta, Polk Reserve R100.
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References
- KEF Q3 Meta: Spec sheet, assets.kef.com, retrieved September 15, 2026
- KEF Q3 Meta: Owner's manual, assets.kef.com, retrieved September 15, 2026
- KEF Q3 Meta: Manufacturer product page, us.kef.com, 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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