McIntosh MA7900 User Manual

11
The MA7900’s Power Amplifier, together with an
additional separate Power Amplifier, may be used to
Bi-Amplify a Loudspeaker System. In the illustration
on this page the Power Amplifier of the MA7900 is
connected to the Midrange/High Frequency Section
of the Loudspeaker. The additional separate Power
Amplifier is connected to the Low Frequency Section
of the Loudspeaker System.
Warning: The Loudspeaker System used for
Bi-Amplification must have the
jumpers removed from between the
MID/HIGH and LOW Frequency
Sections of the Loudspeaker System.
Failure to remove them could result
in damage to the MA7900 and/or the
separate Power Amplifier.
MA7900 Connections:
1. Remove the “McIntosh Jumpers” from between
the OUTPUT 1 Jacks and the PWR AMP In Jacks
located on the Rear Panel of the MA7900.
Note: Place the “McIntosh Jumper” in a safe place
for possible future use.
2. Using a pair of shielded RCA Type Audio “Y”
Adapters connect the OUTPUT 1 Jacks to the
PWR AMP In Jacks, for both Left and Right
Channels.
3. Connect the remaining unconnected part of the
“Y” Adapters to the separate Power Amplifier.
4. Refering to the Loudspeaker Connection Instruc-
tions on page 12, and in the Owner’s Manual sup-
plied with the Power Amplifier and Loudspeaker,
connect the MA7900 Output Terminals to the
Loudspeaker MID/HIGH Input Terminals.
Note: The Loudspeaker Connection illustrations
on this page are for the Left Channel. Con-
nect the Right Channel Loudspeaker in the
same manner.
Connecting for Bi-Amplification
Connecting for Bi-Amplification
+
-
Left Channel
Loudspeaker
“Y” adapter Cable
Power Amplier

McIntosh MA7900 Specifications

General

Brand	McIntosh
Model	MA7900
Category	Amplifier
Language	English