KEF Q6 Meta vs Polk Reserve R400
The Polk Reserve R400 is more sensitive (89 dB vs 86 dB), so it plays louder per watt, plays lower (48 Hz vs 63 Hz) and is an easier load for a receiver (8 Ω vs 4 Ω).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| Q6 Meta | Reserve R400 | |
|---|---|---|
| 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.
| Q6 Meta | Reserve R400 | |
|---|---|---|
| Impedance | 4 Ω | 8 Ω |
| Sensitivity | 86 dB (2.83 V, 1 m) | 89 dB (2.83 V, 1 m) |
| Low end | 63 Hz | 48 Hz |
| Drivers | 1 × 19 mm, 1 × 100 mm, 2 × 165 mm | 1 × 25 mm, 2 × 165 mm |
| Size | 25×8×12 in | 24×8×14 in |
| Recommended amplifier power | 15–200 W | 40–200 W |
| Weight | 14.1 kg (31.1 lb) | 14.9 kg (32.8 lb) |
| MSRP | $850 each (MSRP, September 2026) | $699 each (MSRP, September 2026) |
Every spec and pairing: KEF Q6 Meta, Polk Reserve R400.
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References
- KEF Q6 Meta: Spec sheet, assets.kef.com, retrieved September 15, 2026
- KEF Q6 Meta: Manufacturer product page, us.kef.com, retrieved September 15, 2026
- Polk Reserve R400: Spec sheet, polkaudio.com, retrieved September 15, 2026
- Polk Reserve R400: Owner's manual, polkaudio.com, retrieved September 15, 2026
- Polk Reserve R400: Manufacturer product page, polkaudio.com, retrieved September 15, 2026
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