The P-02 and D-02 share several technologies: A total of eight (8) independent ESOTERIC toroidal core power supply units are installed in the combined system to supply clean and stable power to each circuit. The chassis has our multiple layer structure that is partitioned into 5 sections. Each circuit block is assembled in a dedicated compartment and placed three-dimensionally, in order to minimize interference between circuits and to achieve the shortest signal paths. The exterior is constructed with aluminum and a 5mm gauge steel bottom chassis, supported at four points with Esoteric pinpoint feet (patent No. 4075477). This four-point system effectively suppresses vibration, reduces resonance and assures extremely high rigidity.