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Front view — side by side at true scale
Bowers & Wilkins 603 S3vsMartinLogan Motion F10
The Bowers & Wilkins 603 S3 stands 102.0 cm tall — about 4.9 cm more than the MartinLogan Motion F10 at 97.1 cm. On footprint the MartinLogan Motion F10 is the wider cabinet (28.6 cm versus 25.6 cm). At 92 dB against 90 dB, the MartinLogan Motion F10 is the easier load to drive and plays louder from the same amplifier. The MartinLogan Motion F10 reaches deeper in the bass, down to 38 Hz versus 46 Hz. Low frequencies come from a 165 mm cone on the Bowers & Wilkins 603 S3 and a 140 mm cone on the MartinLogan Motion F10. Both land in a similar price bracket, around $2,500 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Bowers & Wilkins | MartinLogan |
| Model | Bowers & Wilkins 603 S3 S3 | MartinLogan Motion F10 |
| Height | 1020 mm | 971 mm |
| Width | 256 mm | 286 mm |
| Depth | 402 mm | 337 mm |
| Weight | 27.5 kg | 22.9 kg |
| Enclosure | bass-reflex-rear | bass-reflex-down |
| Drivers | 1× 25 mm tweeter (Titanium Dome), 1× 150 mm midrange (Continuum cone FST), 2× 165 mm woofer (paper cone) | 1× tweeter (Folded Motion (AMT)), 1× 140 mm midrange (woven-fibreglass cone), 2× 140 mm woofer (aluminium cone) |
| Frequency — low | 46 Hz | 38 Hz |
| Frequency — high | 28000 Hz | 25000 Hz |
| Sensitivity | 90 dB | 92 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 30–200 W | 20–250 W |
| MAP (USD) | $2,500 / pair | $2,500 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | bowerswilkins.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.

