Front view — side by side at true scale
AQuad S-4BDali Oberon 5
| A | B | |
|---|---|---|
| Manufacturer | Quad | Dali |
| Model | Quad S-4 | Dali Oberon 5 |
| Height | 870 mm | 832 mm |
| Width | 180 mm | 202 mm |
| Depth | 300 mm | 277 mm |
| Weight | 20.5 kg | 10.8 kg |
| Enclosure | passive-radiator | bass-reflex-rear |
| Drivers | 1× tweeter (ribbon), 1× 100 mm midrange (woven Kevlar cone), 2× 125 mm woofer (woven Kevlar cone) | 1× 29 mm tweeter (soft textile dome), 2× 133 mm mid-bass (wood-fibre cone) |
| Frequency — low | 44 Hz | 39 Hz |
| Frequency — high | 23000 Hz | 26000 Hz |
| Sensitivity | 88 dB | 88 dB |
| Impedance | 6 Ω | 6 Ω |
| Recommended amp | 40–200 W | 30–150 W |
| MAP (USD) | $1,499 / pair | $1,500 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | quad-hifi.co.uk ↗ | dali-speakers.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.

