W q e, About balanced jacks, About the filter – Marantz 6264 User Manual

Page 12

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14

ENGLISH

ABOUT BALANCED JACKS

q

The balanced output connector uses a XLR connector.

w

The XLR connector for professional use is internally wired in either
of the following two systems.

1. USA system (Pin 2 = COLD, Pin 3 = HOT)

2. European system (Pin 2 = HOT, Pin 3 = COLD)

e

The SA-1 uses the USA system of 1.

When a preamp or main amplifier adopting the European system is
connected using a cable with XLR balanced connectors, the repro-
duced signal may be inverted of phase.
In this case, correct the wiring of the one of the XLR connectors on
the extremities of the cable to the USA system by exchanging the
connections of pins 2 and 3. This will make it possible to play the
signal with the correct phase.

w q

e

GND

HOT

COLD

w q

e

GND

COLD

HOT

ABOUT THE FILTER

Super Audio CDs have a wide playback frequency band of about 100
kHz that is beyond the audible range: this means that their signals
contain ultra-high-range components that conventional CDs do not
have. A conventional amplifier is often not built to reproduce signals
containing these components, and when Super Audio CD signals are
output in their original state, noise may be generated, the amplifier's
protection circuits may be activated and/or the speakers may be
damaged.
To prevent this sort of trouble from occurring, the unit incorporates a filter
for attenuating the ultra-high-range components, and the filter can be set
STANDARD or CUSTOM using a switch on the rear panel. (This switch
is set to STANDARD when the unit is shipped from the manufacturing
plant.)
When the unit is to be connected with a next-generation amplifier that
supports Super Audio CDs, loosen the screws at the side of the switch,
release the protector, and set the switch to CUSTOM for use. This will
ensure play with a wider frequency range.

* Use the switch at the STANDARD position if the unit is to be used with

a regular amplifier. Otherwise, the amplifier and/or speakers may be
damaged.

* Even when the unit has been connected with an amplifier that supports

Super Audio CDs, change the switch to the STANDARD position when
recording Super Audio CD sound on a tape deck, for instance.

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