Air Tight introduced the newest member of its cartridge line-up, the PC-1S. The new model features even lower internal impedance than in previous models, down to 2.1 ohms. It's accomplished using a new core material. Lower impedance allows for fewer wire turns, lower mass, lower tracking force and of course produces a higher price: $8500. As in low fat foods, less costs more but more should produce greater detail and overall higher performance. Sorry for the blurry picture.