YAMAHA CDX-993

Commentary

CD player equipped with original D/A conversion technology PRO-BIT and I-PDM system DAC.

The D/A converter is equipped with Yamaha's original I-PDM method DAC, which reduces distortion in principle by handling individual waveform pulses independently. In addition, the PRO-BIT technology, which compares Yamaha's more than 20000 20-bit recorded data with 16-bit data read from a CD, and converts it into a 20-bit digital signal with 20-bit precision, improves detail reproducibility at low levels.

All stages use discrete A-class amplifiers for the analog stage, and audio only capacitors and high precision resistors are used.
In addition, a current buffer output circuit with extremely low output impedance is adopted for the output stage. Combined with the adoption of LiD power supply with excellent low-impedance drive capability, stable drivability is obtained.

Analog and digital circuits are separated from each other, and power transformers for analog and digital are installed separately to prevent mutual interference.
In addition, the substrate pattern of analog circuits is made thick to reduce transmission loss, and the pattern of digital circuits is designed thin to minimize noise emission to reduce digital noise.

In order to eliminate harmful resonance and external vibration, the body structure is designed to have higher rigidity based on vibration analysis.
Both the top and bottom covers have a double structure, and a vibration absorbing damper is inserted between the two top covers to reduce mechanical and pneumatic vibration from the outside.
The CD the CD mechanism improves reading accuracy by the function of intelligent digital servo and large diameter disk stabilizer.

It has a digital output terminal, one optical and one coaxial system on the back, and an optical digital output is mounted inside the front ceiling panel.

Equipped with an automatic display off function that automatically turns off the display during CD performance.
It also has a dimmer function that lets you choose the brightness of the display.

It has two audio outputs, variable and fixed.

By connecting to the Yamaha cassette deck, you can use synchronized recording, tape program and autospace function.

Wireless remote control is included.

Model Rating

Type	CD Player
D/A conversion method	PRO-BIT, I-PDM method
Frequency characteristic	2 Hz to 20 kHz ± 0.3 dB
Harmonic distortion factor (1 kHz)	0.002%
Dynamic range	100dB
Signal-to-noise ratio (EIAJ)	118dB
Output voltage	2.0 ± 0.5 Vrms
Remote control volume	Motor drive
Power consumption	13W
External dimensions	Width 435x Height 117x Depth 388 mm
Weight	9.6kg
Attachment	Wireless Remote Control