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Front view — side by side at true scale
AMonitor Audio Studio 89BATC SCM11
| A | B | |
|---|---|---|
| Manufacturer | Monitor Audio | ATC |
| Model | Monitor Audio Studio 89 | ATC SCM11 |
| Height | 340 mm | 380 mm |
| Width | 157 mm | 224 mm |
| Depth | 361 mm | 235 mm |
| Weight | 7.6 kg | 10.9 kg |
| Enclosure | bass-reflex-rear | sealed |
| Drivers | 1× tweeter (MPD III planar ribbon), 2× 108 mm mid-bass (RDT III C-CAM) | 1× 25 mm tweeter (soft dome), 1× 150 mm mid-bass (cone) |
| Frequency — low | 48 Hz | 56 Hz |
| Frequency — high | 60000 Hz | 22000 Hz |
| Sensitivity | 86 dB | 85 dB |
| Impedance | 6 Ω | 8 Ω |
| Recommended amp | 50–300 W | 75–300 W |
| MAP (USD) | $2,500 / pair | $2,699 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | monitoraudio.com ↗ | atc.audio ↗ |
| 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.

