Marantz SA-7S1 manual Using a master clock generator For playback, Master clock generator

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.

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 capable of outputting a highly precise clock signal. Generally speaking, the time base of the clock signal output from a master clock generator is exact, with few fluctuating components (jitter), thus providing a higher-quality sound playback.

Furthermore, 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.

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 quality that the master clock generator can provide.

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.

7Using a master clock generator

for playback

It is recommended that you connect a master clock generator that outputs very high accuracy clock signals.

t, u y q, r

qSwitch off the power supply.

wConnect 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)

eSwitch 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.

rPress the POWER switch on this unit to switch on the power supply.

tWhen the unit’s LCD display is on, press the EXT. CLOCK

button on the front of the unit.

yEach time the EXT. CLOCK button is pressed, the clock frequency indicator lights in the window, in the order shown below.

OFF (Internal clock operates)

44.1kHz

88.2kHz

176.4 kHz

uPress 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.

ENGLISH

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