moon MOON 750 D, Руководство пользователя

Страница: 14 / 16

750D Evolution
Series
14
Figure 5: Remote Operation with SimLink™ and 12V Trigger
In figure 5 we have a 750D DAC connected to a 740P Preamplifier via their respective SimLink™ ports (using a 1/8”
mini-jack cable), and the 740P is connected to a 870A Amplifier via their respective 12V triggers (also using a 1/8”
mini-jack cable). When you turn on the 750D via remote control (or its Standby button), both the 740P and 870A
will turn on automatically. The same rule applies when you put the 750D into Standby mode
Balanced Operation
When using an unbalanced interconnect, the audio
signal runs through both the center wire and the
shield/ground wire. Any noise picked up by this
interconnect (ie. nearby magnetic fields such as an AC
power cord) will be reproduced by both the
preamplifier and amplifier, then heard through the
loudspeakers. Conversely, a balanced interconnect has
three separate conductors; one for the ground and two
for the actual signal.
These two signals are identical except that one is 180
degrees out of phase with the other. For example,
when one conductor is carrying a signal of +4 Volts, the
other will be carrying a signal of –4 Volts. When these
two inverted signals on a balanced line are output from
the
MOON 750D , any noise picked up by the
interconnect will be eliminated since a differential
circuit amplifies only the difference between these two
signals: Noise on a balanced interconnect will be equal
on both conductors and therefore cancel out.