7
You can activate the individual connected reproduction devices using the rotary switch >
IN 1 to IN 5
<.
Please use only high quality interconnect cables. This is the only way to ensure that the sound quality
of the PREAMP I
– MK 3 is fully exploited.
Pin declaration of the balanced input / output (XLR):
Pin 1:
Ground (shield)
Pin 2:
Non-inverting (hot; 0°)
Pin 3:
Inverting (cold; 180°)
These pin assignments comply with the standard adopted by the Audio Engineering Society. Refer to
the operating manual of your other units to verify that the pin assignments of their connectors
correspond to your ACCUSTIC ARTS
®
preamplifier.
IMPORTANT!
Always switch off the preamplifier before connecting an additional unit.
5.3 Use of the analog input >
SURROUND BYPASS
<
The SURROUND BYPASS from ACCUSTIC ARTS
®
is a special input configuration that allows the
signal from a surround processor to pass through the preamplifier with
no gain
. The volume will be
controlled by the surround processor.
WARNING!
You
can’t connect standard units like for example a CD-Player to this input.
In the SURROUND BYPASS configuration the volume of this input is not controlled, this means
that the incoming signal is transferred unchanged to the 3 outputs >OUT 1< to >OUT 3<. This
could otherwise lead to very high volume levels and do serious harm to your connected
loudspeakers.
The >
SURROUND BYPASS
< input will be activated by pressing >
SURROUND
<
9.1
on the frontplate.
When the >
SURROUND
< push-button is pressed the blue LED
9.2
will light up.
5.4 Use of the line outputs >
OUT 1
to
OUT 3
<
Connect the preamplifier balanced outputs
6.1
>
OUT 1
< or
6.2
>
OUT 2
< to the respective input of
your balanced power amplifier. Please check, if the pins of the XLR sockets have the same
configuration (see chapter
5.2
).
Notice:
“Bi-Amping”
To use two stereo power amplifier (or 4 mono power amplifier) in a
“Bi-Amping”
configuration, both
balanced line outputs of the PREAMP I
– MK 3 are necessary.
Even if you use the two balanced outputs of the PREAMP I
– MK 3 for such a “Bi-Amping”
configuration, you still have the possibility to use the unbalanced line output >
OUT 3
< for connecting a
