Front view — side by side at true scale
AQuad S-1BSonus Faber Lumina I
| A | B | |
|---|---|---|
| Manufacturer | Quad | Sonus Faber |
| Model | S-1 | Lumina I |
| HiFi ladder position | #33 of 215 bookshelf | #25 of 215 bookshelf |
| Height | 285 mm | 280 mm |
| Width | 156 mm | 148 mm |
| Depth | 240 mm | 213 mm |
| Weight | 5.2 kg | 4.4 kg |
| Enclosure | bass-reflex-rear | bass-reflex-front |
| Drivers | 1× tweeter (ribbon), 1× 100 mm mid-bass (woven Kevlar cone) | 1× 29 mm tweeter (DAD soft dome), 1× 120 mm mid-bass (paper cone) |
| Frequency — low | 58 Hz | 65 Hz |
| Frequency — high | 20000 Hz | 24000 Hz |
| Sensitivity | 84 dB | 84 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 25–150 W | 30–100 W |
| MAP (USD) | $799 / pair | $999 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | quad-hifi.co.uk ↗ | sonusfaber.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.

