Denon DCD-2500NE, CD/SACD Disc player

The disc read mechanism built into the DCD-2500NE is a high-end advanced SVH (Vibration Suspension Hybrid). Newly designed mechanism control and signal detection schemes. Signal paths have been shortened to a minimum, and miniature size circuits have been used to ensure that excess current and noise do not occur. The parts of the player are made of selected materials, such as: a combination of stainless steel and copper, strengthening the rigidity of the outer casing, a cast aluminum disc tray and 2mm thick steel to cover the entire mechanism. High mass improvements, improved anti-vibration properties and elimination of resonance hotspots at high volume. Also, the lowered center of gravity of the mechanism suppresses the propagation of any internal vibrations while the disc rotates, and the structure and design of the mechanism resists external vibrations. By eliminating unwanted vibration, auxiliary operations are reduced, cutting off unnecessary control and current consumption, digital signals are read from the disk with optimal accuracy under stable conditions.

For the most accurate synchronization of the digital signal processing scheme, the DCD-2500NE DAC Master Clock corrects the signal when the signal is submitted to the DAC for processing. Denon's Master Clock is located next to the digital-to-analog converter and directly suppresses vibrations to ensure optimal accuracy during signal conversion. In addition, the quality of the clock, which depends on the performance of the semiconductors, is very important to ensure that the digital audio circuit reveals its maximum potential. Thus, the DCD-2500NE uses a clock oscillator inside, significantly reducing phase noise, the cause of frequency shift. In order for the premium watch to reveal its full potential, the power scheme has been usefully improved. Conductive polymer capacitor with extremely excellent high-frequency transmission characteristics, improving Denon's sound quality, built into the base of the clock's power supply, near the clock, super-compact film capacitor is used instead of ceramic capacitors to improve the S/N ratio, transparent sound with the highest sense of spatial expression. To improve the PMA-2500NE, two clock oscillators are implemented, one for each sampled frequency (44.1 kHz and 48 kHz). They can be turned on to thoroughly dampen vibrations between frequencies as well.

A newly developed original Denon high-capacity (3300 μF) capacitor is used after the D/A converter circuit to power the analog audio unit. The DCD-2500NE is also equipped with custom-made parts such as: high-sounding electrolytic capacitors and polyphenylene sulfide capacitors, which were developed together with the parts manufacturers through many part-ring tests. These parts provide clean and powerful, very stable power delivery, resulting in a sound that is delightfully balanced between solid and subtle details.

The design philosophy of "simple and straight" has been carefully implemented in all the schemes of the DCD-2500NE. Circuit designs have been redesigned from the ground up to make signal paths as short as possible and ensure accurate sound reproduction across the entire frequency range. As a result, the effect of interference between circuits, between left and right channels is reduced. The reduction of unwanted influence on audio signals is reflected in the DCD-2500NE's clean, highly transparent sound.