En ren CD-transport som kan uppgraderas med extern klocka, ex CD-10M frå Teac i samma 500-serie.
The CD-5020A is a TEAC original drive that we are proud to have developed. This his has been used for professional applications because of its durability and reliability. Based on the CD drive design used in the CD-5020A, we developed a new design optimized for the PD-505T.Drive control circuit with a new design
Seeking an even higher level, we designed a new drive control circuit for the CD mechanism. By controlling the spindle motor with gentle feedback to create a natural rotating state, we have realized an even more unaffected and open sound. Furthermore, BTL drive, which does not generate switching noise, is utilized, starting with the spindle and also including the actuator that drives the pickup lens. This eliminates minute impacts on signal reading and increases the purity of the signal.
Discrete power circuits use toroidal core transformers
Toroidal core transformers are used for the power supplies. Furthermore, power supplies are separated for the OLED display, the CD drive and microcomputer circuit, and the audio circuit, with dedicated secondary coils and rectifiers for each. In consideration of the audio quality, independent discrete power circuits are used for the CD drive, the microcomputer and the audio circuit.
Crystal-oscillator-based internal clock with low-phase noise used
With digital connections, the clock precision of upstream devices can affect the quality of the entire system. A low-phase-noise crystal oscillator, which has outstanding phase noise characteristics, is used for the internal clock of the PD-505T. By reading CD signals based on a high-precision standard clock, the original sound stored on the CD can be accurately output digitally.
10MHz external clock input
The sound can be enhanced further by inputting an even higher precision clock signal from an external source. Moreover, in a digital playback system, not only can audio quality be enhanced by increased upstream precision, building an even higher level digital system becomes possible through, for example, clock synchronization with a DAC.
