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: 440 mm (44.0 cm) · 1 mm = 1.27 px
Bowers & Wilkins 805 D4vsDynaudio Special Forty
The Bowers & Wilkins 805 D4 stands 44.0 cm tall — about 8.0 cm more than the Dynaudio Special Forty at 36.0 cm. On footprint the Bowers & Wilkins 805 D4 is the wider cabinet (22.8 cm versus 19.8 cm). At 88 dB against 86 dB, the Bowers & Wilkins 805 D4 is the easier load to drive and plays louder from the same amplifier. The Bowers & Wilkins 805 D4 is front-ported and the Dynaudio Special Forty is rear-ported. On price, the Bowers & Wilkins 805 D4 sits higher — about $8,000 a pair against $3,500 for the Dynaudio Special Forty.
| A | B | |
|---|---|---|
| Manufacturer | Bowers & Wilkins | Dynaudio |
| Model | 805 D4 | Special Forty |
| HiFi ladder position | #342 of 438 bookshelf | #214 of 438 bookshelf |
| Height | 440 mm | 360 mm |
| Width | 228 mm | 198 mm |
| Depth | 373 mm | 322 mm |
| Weight | 15.55 kg | 8.1 kg |
| Enclosure | bass-reflex-front | bass-reflex-rear |
| Drivers | 1× 25 mm tweeter (diamond dome), 1× 165 mm mid-bass (Continuum cone) | 1× 28 mm tweeter (Esotar Forty soft dome), 1× 170 mm mid-bass (MSP cone) |
| Crossover frequency | — | 2000 Hz |
| Frequency — low | 42 Hz | 41 Hz |
| Frequency — high | 28000 Hz | 23000 Hz |
| Sensitivity | 88 dB | 86 dB |
| Impedance | 8 Ω | 6 Ω |
| Recommended amp | 50–120 W | — |
| MAP (USD) | $8,000 / pair | $3,500 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | bowerswilkins.com ↗ | dynaudio.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.