DENON DCD-1650AL

Commentary

A CD player with an ALPHA processor.

It is equipped with ALPHA processor which is analog waveform reproduction technology.
Using digital data recorded on CDs and other media as a clue, it interpolates the digital data so that the sound becomes closer to the analog waveform, and reproduces 16-bit data with 20-bit quality. It also functions as an adaptive digital filter that automatically adjusts the cutoff band based on the input signal even when CDs with different recording methods are applied, such as music data recorded with an unnecessary band of fs/2 or more cut off during recording or pulse data of test CDs.

The D/A converter uses a real 20-bit Λ S. L. C. (Lambda Super Linear Converter) and supports signals reproduced in 20-bit by the ALPHA processor.
In Λ S. L. C., the 0 cross distortion is eliminated in principle by shifting the 0 cross point during D/A conversion.

Newly developed pick-up drive mechanism loader and base chassis parts are used. In addition, the disk tray is coated with a special coating material containing collagen to prevent vibration transmission to eliminate vibration to the disk.
In addition, the disk is held by a Φ 80 mm large clamper to protect it from vibration. In addition, a thorough vibration-free design is realized by the center mechanical layout, heavyweight chassis and low center of gravity of the bottom.

Digital servo is used for the servo circuit.
By digitizing the servo circuit, it is possible to set the optimal servo amount for each disc being played.

It is equipped with two line output terminals, fixed and variable, and with two digital output terminals coaxial with the optical system.

It is equipped with functions such as direct selection, program selection, repeat, manual search, automatic search, 4-stage display dimmer, fader, peak search, auto-edit, auto-space and random play.

Equipped with 4-step display dimmer function, you can adjust the brightness of the display.

Wireless remote control is included.

Model Rating

Type	CD Player
D/A conversion part system	Real 20-Bit 4 dac Lambda Super Linear Converter
Filter	20-bit 8 x oversampling digital filter + GIC 3rd-order analog filter
Frequency characteristic	2 Hz to 20 kHz
Signal-to-noise ratio	118dB
Dynamic range	100dB
Total harmonic distortion factor	0.0018%(1kHz)
Channel separation	110dB
Analog output voltage	Fixed : 2.0V/10k Ω Variable : 0 ~ 2.0V/10k Ω
Pwer	100 VAC, 50Hz/60Hz
Power consumption	17W
External dimensions	Width 434x Height 135x Depth 340 mm
Weight	10.3kg
Attachment	Wireless Remote Control