JBL Stage 280F vs Polk Reserve R500
The JBL Stage 280F is more sensitive (91 dB vs 87 dB), so it plays louder per watt, plays lower (33 Hz vs 49 Hz) and costs less ($660 vs $699). The Polk Reserve R500 is an easier load for a receiver (8 Ω vs 6 Ω).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| Stage 280F | Reserve R500 | |
|---|---|---|
| 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.
| Stage 280F | Reserve R500 | |
|---|---|---|
| Impedance | 6 Ω | 8 Ω |
| Sensitivity | 91 dB (2.83 V, 1 m) | 87 dB (2.83 V, 1 m) |
| Low end | 33 Hz | 49 Hz |
| Drivers | 1 × 25 mm, 2 × 200 mm | 1 × 25 mm, 2 × 133 mm |
| Size | 14×44×17 in | 10×41×14 in |
| Recommended amplifier power | 20–225 W | 25–200 W |
| Weight | 25.1 kg (55.3 lb) | 17.7 kg (39 lb) |
| MSRP | $660 each (MSRP, September 2026) | $699 each (MSRP, September 2026) |
Every spec and pairing: JBL Stage 280F, Polk Reserve R500.
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References
- JBL Stage 280F: Dimensional drawing, in.jbl.com, retrieved September 15, 2026
- JBL Stage 280F: Retailer listing, audioadvice.com, retrieved September 15, 2026
- Polk Reserve R500: Spec sheet, polkaudio.com, retrieved September 15, 2026
- Polk Reserve R500: Owner's manual, polkaudio.com, retrieved September 15, 2026
- Polk Reserve R500: Manufacturer product page, polkaudio.com, retrieved September 15, 2026
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