Front view — side by side at true scale
AQ Acoustics M20 HDBCambridge Audio L/R S
| A | B | |
|---|---|---|
| Manufacturer | Q Acoustics | Cambridge Audio |
| Model | Q Acoustics M20 HD | Cambridge Audio L/R S |
| Height | 279 mm | 226 mm |
| Width | 170 mm | 133 mm |
| Depth | 296 mm | 180 mm |
| Weight | 5.5 kg | 3 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 22 mm tweeter (soft dome), 1× 125 mm mid-bass (coated paper cone) | 1× 21 mm tweeter (aluminium dome), 1× 76 mm mid-bass (long-throw cone) |
| Frequency — low | 55 Hz | 55 Hz |
| Frequency — high | 22000 Hz | 24000 Hz |
| Sensitivity | — | — |
| Impedance | — | — |
| Recommended amp | — | — |
| MAP (USD) | $729 / pair | $549–599 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | qacoustics.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.

