Front view — side by side at true scale
AT+A Criterion S 230BTAD Evolution Two
| A | B | |
|---|---|---|
| Manufacturer | T+A | TAD |
| Model | Criterion S 230 | Evolution Two |
| HiFi ladder position | #96 of 281 floorstander | #154 of 281 floorstander |
| Height | 1050 mm | 1113 mm |
| Width | 310 mm | 320 mm |
| Depth | 430 mm | 405 mm |
| Weight | 37.5 kg | 32 kg |
| Enclosure | transmission-line | bass-reflex-down |
| Drivers | 2× 170 mm woofer (aluminium), 2× 120 mm midrange (aluminium), 1× 25 mm tweeter (magnesium dome) | 2× 155 mm woofer (aramid), 1× 25 mm tweeter (beryllium) |
| Frequency — low | 29 Hz | 30 Hz |
| Frequency — high | 45000 Hz | 60000 Hz |
| Sensitivity | 87 dB | 87 dB |
| Impedance | 4 Ω | 6 Ω |
| Recommended amp | — | — |
| MAP (USD) | $11,990 / pair | — |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | ta-hifi.de ↗ | technicalaudiodevices.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.

