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Front view — side by side at true scale
Canton Reference Alpha 2vsT+A Solitaire S 540
The T+A Solitaire S 540 stands 148.0 cm tall — about 6.0 cm more than the Canton Reference Alpha 2 at 142.0 cm. On footprint the Canton Reference Alpha 2 is the wider cabinet (37.8 cm versus 32.0 cm). At 89 dB against 88 dB, the Canton Reference Alpha 2 is the easier load to drive and plays louder from the same amplifier. The Canton Reference Alpha 2 reaches deeper in the bass, down to 18 Hz versus 20 Hz. Low frequencies come from a 192 mm cone on the Canton Reference Alpha 2 and a 220 mm cone on the T+A Solitaire S 540. Both land in a similar price bracket, around $52,450 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Canton | T+A |
| Model | Reference Alpha 2 | Solitaire S 540 |
| HiFi ladder position | #252 of 276 floorstander | #258 of 276 floorstander |
| Height | 1420 mm | 1480 mm |
| Width | 378 mm | 320 mm |
| Depth | 660 mm | 520 mm |
| Weight | 91 kg | 80 kg |
| Enclosure | bass-reflex-down | sealed |
| Drivers | 1× 25 mm tweeter (DLC diamond-coated dome), 1× 174 mm midrange (Black Ceramic Tungsten cone), 4× 192 mm woofer (Black Ceramic Tungsten cone) | 1× tweeter (magnetostat), 7× 90 mm midrange (StarStabilizer), 4× 220 mm woofer (aluminium) |
| Frequency — low | 18 Hz | 20 Hz |
| Frequency — high | 40000 Hz | 45000 Hz |
| Sensitivity | 89 dB | 88 dB |
| Impedance | 4 Ω | 4 Ω |
| Recommended amp | — | — |
| MAP (USD) | $50,000 / pair | $54,900 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | canton.de ↗ | 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.

