Audio Database
VRDS-8
Commentary

A CD-player equipped with DSRLL circuit and VRDS mechanism.

Equipped with the DSRLL (Digital Servo Ratio Locked Loop) circuit that is also used in the ESOTOERIC D-3, jitters in the audible band above 3 Hz are reduced to 1/100 (40 dB).

It is equipped with an OS Point selector switch that can select the point to which the moving average is to be placed when performing further oversampling from 8 times oversampling.
Sin achieves 12/24fs using a sine wave moving average circuit that places an interpolated value on the sine wave, which is also used in Esotherlick's D/A converter. This minimizes phase distortion in the later analog interpolation.
16 fs uses a linear interpolation with a simple moving average, and 8 fs uses a shift of 0.

Equipped with a DF Range selector switch that can select the high-band characteristics of the digital filter.
The standard mode cuts signals of 20 kHz or higher sharply, while the wide mode cuts signals more slowly.

Equipped with a digital servo circuit that adjusts the ideal servo amount for each disk.
In digital servo systems, the focus offset, tracking balance, focus gain, and tracking gain are controlled appropriately, and jitter is minimized by a stable servo current.

The mechanism part is equipped with VRDS (Vibration-Free Rigid Disc-Clamping System).
In the VRDS mechanism, the disk is clamped on a turntable with the same diameter as the disk, eliminating vibration and resonance caused by inherent distortion and warpage of the disk itself.
In addition, the crimping surface of the turntable has an extremely gentle slope to correct the distortion and warpage of the disc itself. In addition, the pickup, which is precisely adjusted to the same angle as the turntable, makes it possible to the center of the pickup optical axis at all times, minimizing unnecessary servo current.

The chassis is made of thick steel board and the front panel is made of extruded aluminum.
In addition, a three block system is adopted in which a heavy mechanical part and a power transformer are placed in the center, and an analog circuit and a power circuit are laid out on the left and right sides respectively. The walls separating the blocks are used for reinforcement, making the construction more robust.
In addition, vibration and resonance are suppressed by arranging a special mechanical base chassis for the VRDS mechanism assembly.

Optical digital out via TOS link is mounted on the front panel.

We use carefully selected audio-only parts for capacitors and diodes, and high-end parts such as high-capacity transformers, brass machined gold-plated RCA plugs and digital volumes.

Equipped with a memory in / locate function, it is possible to play a head-out memory play by remote control operation.

Equipped with timer locate memory (TLM), you can start the timer from your favorite place.

Equipped with digital volume.

Display can be turned ON/OFF.

Random memory program, delete program and 4-mode repeat are available.

Timer play is possible.

Equipped with 3-mode time counter.

There are 2 color variations, gold and black.

Wireless remote control is included.

Model Rating
Type CD Player
Number of audio channels 2 Channel
Frequency characteristic 1 Hz to 20 kHz ± 0.3 dB
Signal-to-noise ratio 110 dB or more (EIAJ)
Dynamic range 99 dB or More (EIAJ)
Total harmonic distortion factor 0.0015%(EIAJ)
Wow flutter Measurement limit value or less (crystal oscillation accuracy)
Channel separation 110 dB or more (EIAJ)
Digital output Coaxial : 0.5Vp-p/75 Ω
Optical : -15dBm to -21dBm
Analog output 2.2Vrms(RCA)
D/A converter Advanced Sign Magnitude 20-bit 4 dac
Digital filter 25-bit 8 x, 16 x, 12/24 x oversampling (switching method)
Analog filter Third order Butterworth filter
Pwer 100 VAC, 50Hz/60Hz
Power consumption 20W
External dimensions Width 442x Height 100x Depth 366 mm (Including Legs)
Weight 9kg
Attachment Wireless Remote Control