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: 48.0 in · 1 in = 11.66 px
Bowers & Wilkins 804 D4vsELAC Concentro S 507.2
The ELAC Concentro S 507.2 stands 122.0 cm tall — about 14.9 cm more than the Bowers & Wilkins 804 D4 at 107.1 cm. On footprint the Bowers & Wilkins 804 D4 is the wider cabinet (28.8 cm versus 26.8 cm). At 89 dB against 88 dB, the Bowers & Wilkins 804 D4 is the easier load to drive and plays louder from the same amplifier. Low frequencies come from a 165 mm cone on the Bowers & Wilkins 804 D4 and a 150 mm cone on the ELAC Concentro S 507.2. On price, the ELAC Concentro S 507.2 sits higher — about $15,398 a pair against $13,000 for the Bowers & Wilkins 804 D4.
| A | B | |
|---|---|---|
| Manufacturer | Bowers & Wilkins | ELAC |
| Model | 804 D4 D4 | Concentro S 507.2 2.0 |
| HiFi ladder position | #111 of 281 floorstander | #215 of 281 floorstander |
| Height | 42.2 in | 48 in |
| Width | 11.3 in | 10.6 in |
| Depth | 15.4 in | 15 in |
| Weight | 81.2 lb | 81.6 lb |
| Enclosure | bass-reflex-down | bass-reflex-rear |
| Drivers | 1× 1 in tweeter (diamond dome), 1× 5.1 in midrange (Continuum cone with FST surround), 2× 6.5 in woofer (Aerofoil cone) | 1× tweeter (JET 6 pleated-folded ribbon), 1× 5.1 in midrange (aluminium cone), 1× 7.1 in midrange (aluminium AS-XR cone), 4× 5.9 in woofer (aluminium AS cone) |
| Frequency — low | 24 Hz | 24 Hz |
| Frequency — high | 28000 Hz | 50000 Hz |
| Sensitivity | 89 dB | 88 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 50–200 W | 60–500 W |
| MAP (USD) | $13,000 / pair | $15,398 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | bowerswilkins.com ↗ | elac.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.