JVC XL-Z1010NT CD player

Compact Disc Player - K2Interface. Revealing possibilities at the source

Changing the digital code on a CD into music requires that a digital-to-analog converter choose 1 of 65,536 possibilities every 1/44,100th of a second.

It's commonly assumed that digital signal is composed of 1's and 0's, each represented by the presence or absence of a square-shaped pulse. But the fact of the matter is, a digital signal contains ripple - a type of distortion that changes the shape of a waveform - and jitter, components that move the timing of a pulse forward or behind.

These "non-Code" components can result in a sound that differs from the intent of the digital source. The K2 interface solves this problem by completely regenerating the digital signal. At the heart of the K2 interface is essentially an ultra-high-speed camera with a shutter speed of 20 nanoseconds (20 billionths of a second). Based on these quick snap-shots, it recreates the digital signal as a perfect square wave.

Providing a perfect signal to the D/A converter allows for accurate reproduction of all the nuances such as sound staging and depth. As a matter of fact, in many ways both frequency range and dynamic range are expended. High frequencies sound clearer. There is a heightened sense of the power in the mid-to-low-frequency range.

Music seems to acquire more depth and width, providing clear images of instruments and voices. Overall, sound is smoother and more natural across the audio spectrum.

Precision D/A Converter System Using Four D/A Units.

The XL-Z1010TN features two D/A converter units for each channel - four in all. There is a 16-bit converter for the most significant bits and a 2-bit converter for the two least significant bits. Since the least significant bits have greatest bearing on the sound quality at low level, JVC uses an elaborate discrete D/A converter system for these bits to ensure higher precision. All four converters operate with 18 bits "full Time" whether the level is high or low. Our "quadruple full-time linear 18-bit combination D/A converter" allows you to enjoy digital sound at its most delicate and dynamic.

 

Specifications

Number of Channels:  Two

Converter:  16-bit

Sampling Frequency:  8-fold oversampling, 352,8 kHz

Outputs :
Analog:  2 V
Digital (Coaxial) : 0,5 Vp-p / 75 Ω 

Frequency Response:  2 Hz - 20 kHz

Total Harmonic Distortion :  0,003%

Dynamic Range:  99 dB

Signal-to-Noise Ratio:  better than 108 dB

Distortion Factor:  0,003% (1 kHz)

Channel Separation:  better than 102 dB (1 kHz

Power Requirements: 220 -240 V 50/60 Hz

Dimensions (W x H x D):  435 x 115 x 375 mm

Weight:  7,4 kg