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References
Front view — side by side at true scale
ATAD Reference One TXBFocal Stella Utopia EM Evo
TAD Reference One TXvsFocal Stella Utopia EM Evo
The Focal Stella Utopia EM Evo stands 155.8 cm tall — about 26.5 cm more than the TAD Reference One TX at 129.3 cm. On footprint the TAD Reference One TX is the wider cabinet (55.4 cm versus 53.8 cm). At 94 dB against 90 dB, the Focal Stella Utopia EM Evo is the easier load to drive and plays louder from the same amplifier. Low frequencies come from a 250 mm cone on the TAD Reference One TX and a 330 mm cone on the Focal Stella Utopia EM Evo. Both land in a similar price bracket, around $154,999 a pair.
| A | B | |
|---|---|---|
| Manufacturer | TAD | Focal |
| Model | Reference One TX | Stella Utopia EM Evo EM Evo |
| HiFi ladder position | #234 of 281 floorstander | #267 of 281 floorstander |
| Height | 1293 mm | 1558 mm |
| Width | 554 mm | 538 mm |
| Depth | 698 mm | 830 mm |
| Weight | 150 kg | 170 kg |
| Enclosure | bass-reflex-rear | bass-reflex-front |
| Drivers | 2× 250 mm woofer (aramid), 1× 160 mm midrange (beryllium), 1× 35 mm tweeter (beryllium) | 1× 27 mm tweeter (pure beryllium inverted dome), 2× 165 mm midrange (W sandwich cone), 1× 330 mm woofer (W sandwich cone) |
| Frequency — low | 21 Hz | 22 Hz |
| Frequency — high | 100000 Hz | 40000 Hz |
| Sensitivity | 90 dB | 94 dB |
| Impedance | 4 Ω | 8 Ω |
| Recommended amp | — | 50–1000 W |
| MAP (USD) | $160,000 / pair | $149,998 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | technicalaudiodevices.com ↗ | focal.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.

