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: 52.1 in · 1 in = 10.75 px
MartinLogan ElectroMotion ESLvsBowers & Wilkins 603 S3
The MartinLogan ElectroMotion ESL stands 132.3 cm tall — about 30.3 cm more than the Bowers & Wilkins 603 S3 at 102.0 cm. On footprint the Bowers & Wilkins 603 S3 is the wider cabinet (25.6 cm versus 22.9 cm). At 91 dB against 90 dB, the MartinLogan ElectroMotion ESL is the easier load to drive and plays louder from the same amplifier. The MartinLogan ElectroMotion ESL reaches deeper in the bass, down to 42 Hz versus 46 Hz. Low frequencies come from a 203 mm cone on the MartinLogan ElectroMotion ESL and a 165 mm cone on the Bowers & Wilkins 603 S3. Both land in a similar price bracket, around $2,500 a pair.
| A | B | |
|---|---|---|
| Manufacturer | MartinLogan | Bowers & Wilkins |
| Model | MartinLogan ElectroMotion ESL | Bowers & Wilkins 603 S3 S3 |
| Height | 52.1 in | 40.2 in |
| Width | 9 in | 10.1 in |
| Depth | 16.3 in | 15.8 in |
| Weight | 35.5 lb | 60.6 lb |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× midrange (electrostatic (XStat CLS)), 1× 8 in woofer (doped-fibre cone) | 1× 1 in tweeter (Titanium Dome), 1× 5.9 in midrange (Continuum cone FST), 2× 6.5 in woofer (paper cone) |
| Frequency — low | 42 Hz | 46 Hz |
| Frequency — high | 22000 Hz | 28000 Hz |
| Sensitivity | 91 dB | 90 dB |
| Impedance | 6 Ω | 8 Ω |
| Recommended amp | 20–300 W | 30–200 W |
| MAP (USD) | $2,500 / pair | $2,500 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | martinlogan.com ↗ | bowerswilkins.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.