Klipsch RP-500C II vs Polk Reserve R400
The Klipsch RP-500C II is more sensitive (94 dB vs 89 dB), so it plays louder per watt and costs less ($499 vs $699). The Polk Reserve R400 plays lower (48 Hz vs 56 Hz).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| RP-500C II | Reserve R400 | |
|---|---|---|
| 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.
| RP-500C II | Reserve R400 | |
|---|---|---|
| Impedance | 8 Ω | 8 Ω |
| Sensitivity | 94 dB (2.83 V, 1 m) in-room | 89 dB (2.83 V, 1 m) |
| Low end | 56 Hz | 48 Hz |
| Drivers | 1 × 25 mm, 2 × 133 mm | 1 × 25 mm, 2 × 165 mm |
| Size | 19×7×11 in | 24×8×14 in |
| Weight | 8.3 kg (18.3 lb) | 14.9 kg (32.8 lb) |
| MSRP | $499 each (MSRP, July 2022) | $699 each (MSRP, September 2026) |
| Recommended amplifier power | — | 40–200 W |
Every spec and pairing: Klipsch RP-500C II, Polk Reserve R400.
Try either one in your own room.
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References
- Klipsch RP-500C II: Spec sheet, assets.klipsch.com, retrieved September 15, 2026
- Klipsch RP-500C II: Independent measurement, erinsaudiocorner.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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