Front view — side by side at true scale
APolk Signature Elite ES50BCambridge Audio SX-80
Click either cabinet to swap A ↔ B · Reference height: 980 mm (98.0 cm) · 1 mm = 0.57 px
| A | B | |
|---|---|---|
| Manufacturer | Polk | Cambridge Audio |
| Model | Polk Signature Elite ES50 | Cambridge Audio SX-80 |
| Height | 950 mm | 980 mm |
| Width | 261 mm | 234 mm |
| Depth | 277 mm | 338 mm |
| Weight | 14.5 kg | 16.9 kg |
| Enclosure | bass-reflex-down | bass-reflex-front |
| Drivers | 1× 25 mm tweeter (Terylene Dome), 2× 133 mm mid-bass (Dynamic Balance mica-reinforced polypropylene cone) | 1× 25 mm tweeter (silk dome), 2× 165 mm mid-bass (treated paper cone) |
| Frequency — low | 38 Hz | 40 Hz |
| Frequency — high | 40000 Hz | 20000 Hz |
| Sensitivity | 88 dB | 87 dB |
| Impedance | 8 Ω | 8 Ω |
| Recommended amp | 40–200 W | — |
| MAP (USD) | $700 / pair | $799 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | polkaudio.com ↗ | cambridgeaudio.com ↗ |
| Product page | Open product page ↗ | Open product page ↗ |
Larger value highlighted in green. For low-frequency extension, lower Hz = greater bass reach, so the deeper side is highlighted.