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Front view — side by side at true scale
Bowers & Wilkins 804 D4vsT+A Criterion S 230
The Bowers & Wilkins 804 D4 stands 107.1 cm tall — about 2.1 cm more than the T+A Criterion S 230 at 105.0 cm. On footprint the T+A Criterion S 230 is the wider cabinet (31.0 cm versus 28.8 cm). At 89 dB against 87 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 29 Hz. The Bowers & Wilkins 804 D4 is down-firing ported and the T+A Criterion S 230 is a transmission line. Both land in a similar price bracket, around $12,495 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Bowers & Wilkins | T+A |
| Model | 804 D4 D4 | Criterion S 230 |
| HiFi ladder position | #111 of 281 floorstander | #96 of 281 floorstander |
| Height | 1071 mm | 1050 mm |
| Width | 288 mm | 310 mm |
| Depth | 391 mm | 430 mm |
| Weight | 36.85 kg | 37.5 kg |
| Enclosure | bass-reflex-down | transmission-line |
| Drivers | 1× 25 mm tweeter (diamond dome), 1× 130 mm midrange (Continuum cone with FST surround), 2× 165 mm woofer (Aerofoil cone) | 2× 170 mm woofer (aluminium), 2× 120 mm midrange (aluminium), 1× 25 mm tweeter (magnesium dome) |
| Frequency — low | 24 Hz | 29 Hz |
| Frequency — high | 28000 Hz | 45000 Hz |
| Sensitivity | 89 dB | 87 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 50–200 W | — |
| MAP (USD) | $13,000 / pair | $11,990 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | bowerswilkins.com ↗ | ta-hifi.de ↗ |
| 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.

