RPM 3 Carbon uses evolutionary enhancements to improve the performance of the RPM series: A low resonance chassis holds an inverted platter bearing with ceramic ball for further reduced rumble. An outboard 15V AC motor is smoothly driven using an ultra precision AC generator with DC power supply for further enhanced speed stability. A 10" S-shaped tonearm tube is made from carbon fiber, aluminum and resin. Using a complex 3-step process with heat treatment and 100bar pressure, the arm tube rigidity is strengthened, internal damping is maximized and resonances are reduced to a minimum. This makes the tonearm also suitable for MC cartridges. Additional features include a magnetic antiskating mechanism and a TPE-damped counterweight.