Front view — side by side at true scale
AATC SCM50SLBHarbeth Monitor 40.5 XD2
Click either cabinet to swap A ↔ B · Reference height: 750 mm (75.0 cm) · 1 mm = 0.75 px
| A | B | |
|---|---|---|
| Manufacturer | ATC | Harbeth |
| Model | ATC SCM50SL | Harbeth Monitor 40.5 XD2 |
| Height | 717 mm | 750 mm |
| Width | 304 mm | 432 mm |
| Depth | 425 mm | 388 mm |
| Weight | 41.1 kg | 34 kg |
| Enclosure | sealed | bass-reflex-front |
| Drivers | 1× 25 mm tweeter (soft dome), 1× 75 mm midrange (soft dome), 1× 234 mm woofer (cone) | 1× 25 mm tweeter (ferrofluid-cooled dome), 1× 200 mm midrange (RADIAL polymer cone), 1× 300 mm woofer (cone) |
| Frequency — low | 40 Hz | 35 Hz |
| Frequency — high | 25000 Hz | 20000 Hz |
| Sensitivity | 85 dB | 86 dB |
| Impedance | 8 Ω | 6 Ω |
| Recommended amp | 100–1500 W | — |
| MAP (USD) | $25,999 / pair | $21,990 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | atc.audio ↗ | harbeth.co.uk ↗ |
| 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.