TrueScale
Compare speakers at true scale.
TrueSpecs
Compare technical specifications (up to 4 speakers).
HiFi Ladder
Browse every speaker ordered by size, side by side.
References
Front view — overlaid at true scale
ATriangle Cello 40thBBowers & Wilkins 804 D4
| A | B | |
|---|---|---|
| Manufacturer | Triangle | Bowers & Wilkins |
| Model | Triangle Cello 40th | Bowers & Wilkins 804 D4 D4 |
| Height | 1080 mm | 1071 mm |
| Width | 385 mm | 288 mm |
| Depth | 340 mm | 391 mm |
| Weight | 38.8 kg | 36.85 kg |
| Enclosure | bass-reflex-front | bass-reflex-front |
| Drivers | 1× 25 mm tweeter (magnesium-dome compression diaphragm), 1× 165 mm midrange (natural-paper cone with fabric surround), 2× 165 mm woofer (fiberglass-sandwich cone) | 1× 25 mm tweeter (diamond dome), 1× 130 mm midrange (Continuum cone with FST surround), 2× 165 mm woofer (Aerofoil cone) |
| Frequency — low | 35 Hz | 24 Hz |
| Frequency — high | 30000 Hz | 28000 Hz |
| Sensitivity | 90 dB | 89 dB |
| Impedance | 8 Ω | 8 Ω |
| Recommended amp | 60–500 W | 50–200 W |
| MAP (USD) | $13,000 / pair | $13,000 / pair |
| Brand website | trianglehifi.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.

