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: 61.5 in · 1 in = 9.11 px
Paradigm Founder 120HvsMartinLogan Expression ESL 13A
The MartinLogan Expression ESL 13A stands 156.1 cm tall — about 40.8 cm more than the Paradigm Founder 120H at 115.3 cm. On footprint the Paradigm Founder 120H is the wider cabinet (35.6 cm versus 33.9 cm). At 92 dB against 91 dB, the Paradigm Founder 120H is the easier load to drive and plays louder from the same amplifier. The Paradigm Founder 120H reaches deeper in the bass, down to 22 Hz versus 24 Hz. Low frequencies come from a 215 mm cone on the Paradigm Founder 120H and a 254 mm cone on the MartinLogan Expression ESL 13A. On price, the MartinLogan Expression ESL 13A sits higher — about $14,995 a pair against $8,500 for the Paradigm Founder 120H.
| A | B | |
|---|---|---|
| Manufacturer | Paradigm | MartinLogan |
| Model | Paradigm Founder 120H | MartinLogan Expression ESL 13A |
| Height | 45.4 in | 61.5 in |
| Width | 14 in | 13.3 in |
| Depth | 17.4 in | 27.5 in |
| Weight | 91.9 lb | 103.2 lb |
| Enclosure | bass-reflex-rear | sealed |
| Drivers | 1× 1 in tweeter (AL-MAC ceramic dome), 1× 6 in midrange (AL-MAG cone), 3× 8.5 in woofer (CARBON-X cone) | 1× midrange (electrostatic (XStat CLS)), 2× 10 in woofer (aluminium cone) |
| Frequency — low | 22 Hz | 24 Hz |
| Frequency — high | 23000 Hz | 23000 Hz |
| Sensitivity | 92 dB | 91 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 15–400 W | 20–600 W |
| MAP (USD) | $8,500 / pair | $14,995 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | paradigm.com ↗ | martinlogan.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.