Front view — side by side at true scale
AATC SCM50ASLBMarantz Grand Horizon
| A | B | |
|---|---|---|
| Manufacturer | ATC | Marantz |
| Model | ATC SCM50ASL | Marantz Grand Horizon |
| Height | 717 mm | 493 mm |
| Width | 304 mm | 452 mm |
| Depth | 480 mm | 529 mm |
| Weight | 48.9 kg | 21.3 kg |
| Enclosure | bass-reflex-front | sealed |
| Drivers | 1× 25 mm tweeter (soft dome), 1× 75 mm midrange (soft dome), 1× 234 mm woofer (cone) | 3× 25 mm tweeter (aluminium-dome), 4× 76 mm midrange (wide-band cone), 1× 203 mm woofer (neodymium-motor woofer) |
| Frequency — low | 38 Hz | 28 Hz |
| Frequency — high | 25000 Hz | 20000 Hz |
| Sensitivity | — | — |
| Impedance | — | — |
| Recommended amp | — | — |
| MAP (USD) | $33,999 / pair | $5,500 each |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | atc.audio ↗ | marantz.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.

