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Front view — side by side at true scale
Bowers & Wilkins 804 D4vsSonus Faber Maxima Amator
The Sonus Faber Maxima Amator stands 112.0 cm tall — about 4.9 cm more than the Bowers & Wilkins 804 D4 at 107.1 cm. On footprint the Sonus Faber Maxima Amator is the wider cabinet (30.4 cm versus 28.8 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. The Bowers & Wilkins 804 D4 reaches deeper in the bass, down to 24 Hz versus 35 Hz. Low frequencies come from a 165 mm cone on the Bowers & Wilkins 804 D4 and a 180 mm cone on the Sonus Faber Maxima Amator. On price, the Sonus Faber Maxima Amator sits higher — about $15,000 a pair against $13,000 for the Bowers & Wilkins 804 D4.
| A | B | |
|---|---|---|
| Manufacturer | Bowers & Wilkins | Sonus Faber |
| Model | 804 D4 D4 | Maxima Amator |
| HiFi ladder position | #111 of 281 floorstander | #159 of 281 floorstander |
| Height | 1071 mm | 1120 mm |
| Width | 288 mm | 304 mm |
| Depth | 391 mm | 350 mm |
| Weight | 36.85 kg | 38 kg |
| Enclosure | bass-reflex-down | bass-reflex-rear |
| Drivers | 1× 25 mm tweeter (diamond dome), 1× 130 mm midrange (Continuum cone with FST surround), 2× 165 mm woofer (Aerofoil cone) | 1× 28 mm tweeter (H28 soft dome with DAD), 1× 180 mm mid-bass (MW18 paper cone) |
| Frequency — low | 24 Hz | 35 Hz |
| Frequency — high | 28000 Hz | 35000 Hz |
| Sensitivity | 89 dB | 88 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 50–200 W | 25–125 W |
| MAP (USD) | $13,000 / pair | $15,000 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | bowerswilkins.com ↗ | sonusfaber.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.

