Front view — side by side at true scale
AHarbeth P3ESR XD2BATC SCM19
| A | B | |
|---|---|---|
| Manufacturer | Harbeth | ATC |
| Model | Harbeth P3ESR XD2 | ATC SCM19 |
| Height | 306 mm | 438 mm |
| Width | 190 mm | 250 mm |
| Depth | 184 mm | 300 mm |
| Weight | 6.1 kg | 17.8 kg |
| Enclosure | sealed | sealed |
| Drivers | 1× 19 mm tweeter (ferrofluid-cooled dome), 1× 110 mm mid-bass (RADIAL polymer cone) | 1× 25 mm tweeter (soft dome), 1× 150 mm mid-bass (cone) |
| Frequency — low | 75 Hz | 54 Hz |
| Frequency — high | 20000 Hz | 22000 Hz |
| Sensitivity | 83 dB | 85 dB |
| Impedance | 6 Ω | 8 Ω |
| Recommended amp | — | 75–300 W |
| MAP (USD) | $3,790 / pair | $3,749 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | harbeth.co.uk ↗ | 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.

