The DP-500M uses a quartz lock servo that controls platter rotation via intervals of optical pulses passing through a slit. This control system ensures accurate rotation with no deviation from the center. The development of a high-torque motor has boosted start-up speed to 0.3 second, providing quick operation and stable rotation.Silicon rubber, a deadening material, has been applied over the entire reverse side of the large diecast aluminum platter to minimize howling. Hologram vibration analysis was used to improve the ability of the supplied platter sheet to "hold" the record. A slight cone-shaped taper has even been applied to the sheet.
RCA pin-type output has been used for the DP-500M, providing greater flexibility when changing RCA cables to match sound quality or cartridge impedance.
The cabinet has been constructed in a compact size despite the large platter size to improve rigidity and minimize howling. The MDF material offers performance close to natural wood, while also imparting a soft finish and elegant appearance.
The DP-500M's tonearm has been designed for optimum sound quality through the use of diecast parts throughout to boost rigidity and carefully placed deadening material to minimize vibration. This universal-type tonearm accommodates a wide variety of cartridges.