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

