DENON DCD-7.5S

Commentary

A ESTA player from the PR Compact series.

Double D/A converter type S. L. C. is used for the D/A conversion part.
The 20-bit 8-times oversampling signal produced by a digital filter is converted into an analog signal at high speed. The digital signal with 8 times the standard time scale is received and converted into an analog signal. This greatly improves the dynamic range and enables D/A conversion close to the theoretical limit of CD playback and closer to the recorded waveform.
Unlike the dynamic bit shift method using an attenuator or a switching circuit, this real 20-bit converter is stable without any nonlinear distortion factor.

The digital circuit is equipped with an 8 x over-sampling 20-bit digital filter with a noise shaper. The 8 x over-sampling increases the sampling frequency by 8 x, widening the gap between the music signal and the noise component and making it easier to remove noise with an analog low-pass filter.
The noise shaper reduces the requantization distortion in the audible band by feeding back only the round-off error component of the digital filter output and subtracting it from the next data. This is equivalent to increasing the number of bits in the converter.

A new servo LSI is used in the servo circuit to improve traceability.

By improving jitter and anti-rolling through the adoption of DSP, the quality of the CD player as a sound entrance has been improved.

It is equipped with two digital outputs which are coaxial with the optical system.

Uses a front panel made of extruded aluminum material.
In addition, it has the same design with the PRESTA series such as gold feet and suede side panels.

It is equipped with editing functions such as edit, pick and link, and functions such as random play, 20-track program and repeat between A and B.
All of these functions can be controlled with a remote control.

Wireless remote control is included.

Model Rating

Type	CD Player
D/A conversion part system	Super linear converter
Filter	Noise-shaping 20-bit 8 x oversampling digital filter + analog filter
Frequency characteristic	2 Hz to 20 kHz
Signal-to-noise ratio	106dB
Dynamic range	97dB
Total harmonic distortion factor	0.003%
Channel separation	100dB
Analog output voltage	2.0V/10k Ω
Pwer	100 VAC, 50Hz/60Hz
Power consumption	11W
External dimensions	Width 250x Height 75x Depth 300 mm
Weight	3.0kg
Attachment	Wireless Remote Control