Playing CDs

Customising the Sound of Your Music (Digital Filter Function)

This player has a variable coefficient (V.C.) digital filter. By selecting the type of filter you want, you can adjust the sound to match your system, your room, the music source, etc.

FILTER -AMS ±

CDP-XA50ES

FILTER-AMS ±

CDP-XA30ES

DIGITAL FILTER

Selecting the filter directly on the player

1Press FILTER.

The display shows the currently selected filter number and the filter indicator flashes.

2Turn -AMS ±until the digital filter number you want appears in the display.

As you turn the -AMS ±control, the digital filter number changes cyclically as follows:

nSTD n1 n2 n3A n3b n3C n4A n4b n4C

If you are playing a disc, the sound will be interrupted momentarily.

3Push -AMS ±to select the filter. The original display reappears.

The selected digital filter number is stored in memory even if you turn off the power.

You can also change the digital filter number by pressing the FILTER button while the indicator is flashing

Selecting the filter using the remote Z

1Press DIGITAL FILTER.

The display shows the currently selected filter number and the filter indicator flashes.

2Press DIGITAL FILTER repeatedly until the display shows the digital filter number you want. The digital filter number is stored and the original display reappears.

What is a variable coefficient (V.C.) digital filter?

CD players use digital filters to eliminate the noise generated during sampling. You can change the tone of your music by changing the cutoff characteristics of the digital filter.

This player has five types of filters with different coefficient characteristics: “STD,” “1,” “2,” “3” and “4.” In addition, digital filters “3” and “4” each have three coefficient patterns, A–C, for more detailed adjustments.

The following explains the terms you need to know to understand the characteristics of the digital filters used in this player.

Sharp roll-off and slow roll-off

Digital filters can be roughly classified into sharp roll- off types and slow roll-off types, according to their cutoff characteristics.

Response

 

(Slow roll-off filter)

(dB)

0

 

(Sharp roll-off filter)

-120

0 22.05k

Frequency (Hz)

Comparison of cutoff characteristics for sharp roll-off filter

and slow roll-off filter

8EN