TrueScaleAudio
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Front view — side by side at true scale
MartinLogan ElectroMotion ESL XvsKlipsch RF-7 III
The MartinLogan ElectroMotion ESL X stands 150.3 cm tall — about 25.8 cm more than the Klipsch RF-7 III at 124.5 cm. On footprint the Klipsch RF-7 III is the wider cabinet (36.2 cm versus 23.9 cm). At 100 dB against 91 dB, the Klipsch RF-7 III is the easier load to drive and plays louder from the same amplifier. The Klipsch RF-7 III reaches deeper in the bass, down to 32 Hz versus 41 Hz. Low frequencies come from a 203 mm cone on the MartinLogan ElectroMotion ESL X and a 254 mm cone on the Klipsch RF-7 III. On price, the Klipsch RF-7 III sits higher — about $4,998 a pair against $4,000 for the MartinLogan ElectroMotion ESL X.
| A | B | |
|---|---|---|
| Manufacturer | MartinLogan | Klipsch |
| Model | MartinLogan ElectroMotion ESL X | Klipsch RF-7 III III |
| Height | 1503 mm | 1245 mm |
| Width | 239 mm | 362 mm |
| Depth | 526 mm | 454 mm |
| Weight | 23.6 kg | 44.1 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× midrange (electrostatic (XStat CLS)), 2× 203 mm woofer (paper cone) | 1× 44 mm tweeter (titanium compression diaphragm), 2× 254 mm woofer (Cerametallic cone) |
| Frequency — low | 41 Hz | 32 Hz |
| Frequency — high | 22000 Hz | 25000 Hz |
| Sensitivity | 91 dB | 100 dB |
| Impedance | 6 Ω | 8 Ω |
| Recommended amp | 20–400 W | — |
| MAP (USD) | $4,000 / pair | $4,998 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | martinlogan.com ↗ | klipsch.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.

