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: 1561 mm (156.1 cm) · 1 mm = 0.36 px
MartinLogan Expression ESL 13AvsParadigm Founder 120H
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 254 mm cone on the MartinLogan Expression ESL 13A and a 215 mm cone on the Paradigm Founder 120H. 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 | MartinLogan | Paradigm |
| Model | MartinLogan Expression ESL 13A | Paradigm Founder 120H |
| Height | 1561 mm | 1153 mm |
| Width | 339 mm | 356 mm |
| Depth | 699 mm | 441 mm |
| Weight | 46.8 kg | 41.7 kg |
| Enclosure | sealed | bass-reflex-rear |
| Drivers | 1× midrange (electrostatic (XStat CLS)), 2× 254 mm woofer (aluminium cone) | 1× 25 mm tweeter (AL-MAC ceramic dome), 1× 152 mm midrange (AL-MAG cone), 3× 215 mm woofer (CARBON-X cone) |
| Frequency — low | 24 Hz | 22 Hz |
| Frequency — high | 23000 Hz | 23000 Hz |
| Sensitivity | 91 dB | 92 dB |
| Impedance | 4 Ω | 8 Ω |
| Recommended amp | 20–600 W | 15–400 W |
| MAP (USD) | $14,995 / pair | $8,500 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | martinlogan.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.