TrueScaleAudio
Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
Front view — side by side at true scale
Click either cabinet to swap A ↔ B · Reference height: 368 mm (36.8 cm) · 1 mm = 1.52 px
Paradigm Founder 40BvsSonus Faber Lumina I
The Paradigm Founder 40B stands 36.8 cm tall — about 8.8 cm more than the Sonus Faber Lumina I at 28.0 cm. On footprint the Paradigm Founder 40B is the wider cabinet (21.6 cm versus 14.8 cm). At 89 dB against 84 dB, the Paradigm Founder 40B is the easier load to drive and plays louder from the same amplifier. The Sonus Faber Lumina I reaches deeper in the bass, down to 65 Hz versus 69 Hz. Low frequencies come from a 152 mm cone on the Paradigm Founder 40B and a 120 mm cone on the Sonus Faber Lumina I. On price, the Paradigm Founder 40B sits higher — about $2,200 a pair against $999 for the Sonus Faber Lumina I.
| A | B | |
|---|---|---|
| Manufacturer | Paradigm | Sonus Faber |
| Model | Founder 40B | Lumina I |
| HiFi ladder position | #135 of 255 bookshelf | #31 of 255 bookshelf |
| Height | 368 mm | 280 mm |
| Width | 216 mm | 148 mm |
| Depth | 320 mm | 213 mm |
| Weight | 5.1 kg | 4.4 kg |
| Enclosure | bass-reflex-rear | bass-reflex-front |
| Drivers | 1× 25 mm tweeter (AL-MAC ceramic dome), 1× 152 mm mid-bass (AL-MAG cone) | 1× 29 mm tweeter (DAD soft dome), 1× 120 mm mid-bass (paper cone) |
| Crossover frequency | 1600 Hz | 2000 Hz |
| Frequency — low | 69 Hz | 65 Hz |
| Frequency — high | 23000 Hz | 24000 Hz |
| Sensitivity | 89 dB | 84 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 15–150 W | 30–100 W |
| MAP (USD) | $2,200 / pair | $999 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | paradigm.com ↗ | 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.