Marantz SA-7S1 User's Guide download pdf (Page 26)

ENGLISH

OPERATION

USING A MASTER CLOCK

GENERATOR WHEN PLAYING DISCS

The master clock generator

In digital devices such as CD players or super audio CDs,

there is a process that samples or restores the analog signal.

In order to conduct this process, a clock signal (sampling

frequency) is used.

A master clock generator is an oscillation device that makes

this clock signal.

The clock signal output by the crystal oscillator built into this

unit is extremely accurate, enabling you to fully enjoy high

quality sound playback. However, you can also perform

playback using the clock signal output from an external master

clock generator, to enjoy the difference in the sound that the

master clock generator can provide.

In recent years, research has found that the difference in clock

signals causes differences in tone quality. In response to this

finding, many companies have released master clock

generators.

Generally speaking, the more precise the clock signal time

base is, the closer it is to the natural time base of the sound,

thus enabling the reproduction of higher fidelity sound.

Therefore many master clock generators insist that they are

capable of outputting a highly precise clock signal.

Anyway, the different clock seems give differences sound tone.

This unit offers the possibility of enjoying the change.

The frequency of the clock signal that can be input into this

unit is 44.1, 88.2, or 176.4kHz. Use a master clock generator

that is capable of outputting these signals.

7 Using a master clock generator

for playback

Should you elect to use an outboard master clock generator,

be sure to select one that has an extremely accurate clock to

avoid degrading the sonic performance of your SA-7S1.

q, ryt, u

q Switch off the power supply.

w Connect the EXT. CLOCK INPUT connector on the rear of

this unit to the output connector of the master clock

generator using a commercially available BNC terminal

coaxial cable. (See page 11)

e Switch on the power of the master clock generator, and

check the clock frequency to set. For details on this

operation, please refer to the instruction manual that came

with your master clock generator.

r Press the POWER switch on this unit to switch on the power

supply.

t When the unit’s LCD display is on, press the EXT. CLOCK

button on the front of the unit.

y Each time the EXT. CLOCK button is pressed, the clock

frequency indicator lights in the window, in the order shown

below.

OFF (Internal clock operates)

44.1 kHz

88.2 kHz

176.4 kHz

u Press the EXT. CLOCK button to match the frequency with

the clock frequency set in the master clock generator, and

when the LOCK indicator switches on, the settings are

complete.

You will be able to hear the changes in sound quality by

changing the clock signal. Set the frequency to your own

personal tastes.

Caution

• Switch between the master clock generator and the internal

clock when playback is stopped to prevent excessive sound

occurrence from the speaker.

• Sound will be muted when the LOCK indicator blinks. Check

the settings of your master clock generator, the connections

etc. During this time, the DIGITAL OUTPUT signal will not

be muted.

• The information after this operation is stored by the last

memory function even after the power is switched OFF.

SA-7S1 UK 01 eng 07.6.6, 10:21 AMPage 21 Adobe PageMaker 6.5J/PPC

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Marantz SA-7S1 User's Guide Page 26

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