Front view — side by side at true scale
ATAD Grand Evolution OneBT+A Solitaire S 540
Click either cabinet to swap A ↔ B · Reference height: 1480 mm (148.0 cm) · 1 mm = 0.38 px
| A | B | |
|---|---|---|
| Manufacturer | TAD | T+A |
| Model | Grand Evolution One | Solitaire S 540 |
| HiFi ladder position | #209 of 281 floorstander | #263 of 281 floorstander |
| Height | 1212 mm | 1480 mm |
| Width | 394 mm | 320 mm |
| Depth | 547 mm | 520 mm |
| Weight | 64 kg | 80 kg |
| Enclosure | bass-reflex-down | sealed |
| Drivers | 2× 180 mm woofer (aramid), 1× 140 mm midrange (magnesium), 1× 35 mm tweeter (beryllium) | 1× tweeter (magnetostat), 7× 90 mm midrange (StarStabilizer), 4× 220 mm woofer (aluminium) |
| Frequency — low | 27 Hz | 20 Hz |
| Frequency — high | 100000 Hz | 45000 Hz |
| Sensitivity | 88 dB | 88 dB |
| Impedance | 4 Ω | 4 Ω |
| Recommended amp | — | — |
| MAP (USD) | $65,000 / pair | $54,900 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | technicalaudiodevices.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.