Description
True to TAD’s long-held philosophy of providing artistic expression in music as it was originally performed, the D700 incorporates digital-to-analogue conversion technology of the highest precision. Because clock performance makes a crucial difference to the accuracy of D/A conversion, TAD engineers have spent years developing a new master clock for the D700. The result of their meticulous efforts is the Ultra-High C/N* Master Clock UPCG, which significantly reduces jitter in the frequency bands around the clock centre frequency. Our original approach to engineering, based on theory and real-world testing, makes it possible to bring the purity of musical performance to life.
*C/N: Carrier-to-noise ratio
In developing disc players capable of the most accurate sound reproduction, TAD has focused on achieving better C/N performance by reducing jitter in the lower frequency sidebands relative to the centre frequencies. With the D700, we have gone one step further by incorporating an oscillator with an SC-cut crystal to further reduce phase noise. Developed in collaboration with a crystal manufacturer, this oscillator has minimal temperature drift when oscillating at room temperature. The improved third-generation UPCG with ultra-high C/N master clock is responsible for smooth and dynamic music reproduction with excellent spatial characteristics. The oscillator delivers consistently high C/N performance over an extended period of time and operates reliably with low power consumption.
TAD’s quest for simplicity has culminated in a newly developed current feedback amplifier integrated into the D700’s I/V converter, which feeds back the current from the D/A converters without altering it. This design achieves lower impedance and greater noise immunity, contributing to pure signal transmission. Its input stage is equipped with FET devices hand-picked and matched by our certified specialists. This ingenious design enables ultra-wide signal transmission, resulting in an unprecedented level of precision in signal conversion. Our quest to eliminate magnetic distortion has gone one step further. The non-magnetic, highly reliable carbon resistors used as feedback resistors contribute to a non-magnetic signal path. The combination of TAD’s proprietary discrete circuit design and carefully selected high quality components improves signal linearity from very low to very high levels, bringing out the true presence of the music.
