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: 422 mm (42.2 cm) · 1 mm = 1.33 px
KEF R3 MetavsParadigm Founder 40B
The KEF R3 Meta stands 42.2 cm tall — about 5.4 cm more than the Paradigm Founder 40B at 36.8 cm. On footprint the Paradigm Founder 40B is the wider cabinet (21.6 cm versus 20.0 cm). At 89 dB against 87 dB, the Paradigm Founder 40B is the easier load to drive and plays louder from the same amplifier. The KEF R3 Meta reaches deeper in the bass, down to 58 Hz versus 69 Hz. Low frequencies come from a 165 mm cone on the KEF R3 Meta and a 152 mm cone on the Paradigm Founder 40B. On price, the KEF R3 Meta sits higher — about $2,999 a pair against $2,200 for the Paradigm Founder 40B.
| A | B | |
|---|---|---|
| Manufacturer | KEF | Paradigm |
| Model | R3 Meta | Founder 40B |
| HiFi ladder position | #190 of 255 bookshelf | #135 of 255 bookshelf |
| Height | 422 mm | 368 mm |
| Width | 200 mm | 216 mm |
| Depth | 336 mm | 320 mm |
| Weight | 12.4 kg | 5.1 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 25 mm tweeter (MAT aluminium dome), 1× 125 mm midrange (aluminium cone), 1× 165 mm woofer (hybrid aluminium cone) | 1× 25 mm tweeter (AL-MAC ceramic dome), 1× 152 mm mid-bass (AL-MAG cone) |
| Crossover frequency | 420 / 2300 Hz | 1600 Hz |
| Frequency — low | 58 Hz | 69 Hz |
| Frequency — high | 28000 Hz | 23000 Hz |
| Sensitivity | 87 dB | 89 dB |
| Impedance | 4 Ω | 8 Ω |
| Recommended amp | 15–180 W | 15–150 W |
| MAP (USD) | $2,999 / pair | $2,200 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | international.kef.com ↗ | paradigm.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.