21
If the Front Panel MUTE Push-button is pressed
for at least 3 seconds, the MA6600 will mute the
OUTPUT connectors (Output 1 and 2), yet listening
with headphones will continue until the Mute Push-
button is pressed again for 3 seconds. The Front Panel
Information
Display will
indicate the
Source and
Headphone
Setting. Re-
fer to figures
37 and 38.
Headphones Jack
Connect a pair of dynamic headphones to the Head-
phones Jack for private listening. Press OUTPUT 1
and/or 2 Push-buttons to mute the Loudspeakers or
use the MUTE Mode Headphone Function outlined
above.
Note: The Headphone Output is optimized for imped-
ances ranging from 16 to 250 ohms.
Power Output Meters
The MA6600 Power Output Meters indicate the power
delivered to the Loudspeakers. Refer to figure 39.
The meters respond to all the musical information
being produced by the Amplifier. They indicate to an
accuracy of at least 95% of the
power output with only a single
cycle of a 2,000Hz tone burst.
Power Guard
During normal operation,
the Front Panel Power Guard
Indicators will momentarily
illuminate during peaks in
the audio signals. In the event
the MA6600 over heats, due
to improper ventilation, high
ambient temperature and/or im-
pedance mismatch, the internal
protection circuits will activate.
The Front Panel Power Guard
Indicators will continuously
illuminate and the audio will
be muted. When the MA6600
has returned to a safe operating
temperature, normal operation
will resume.
How To Make a Recording
1. Select the desired signal
source you wish to record by
using the Front Panel INPUT
Control or the appropriate
Source Push-button on the
Remote Control.
2. Adjust the record level using
the recorder volume control
and proceed with the recording process.
3. To listen to the playback of the program source just
recorded select the REC Input.
Note: The MA6600 REC OUTPUTS are not affected
by the VOLUME, BALANCE or TONE Control
Settings.
Using a Separate Power Amplifier
There are two different ways to use a separate power
amplifier with a MA6600. The first way is to use the
separate amplifier instead of the MA6600 built-in
Power Amplifier. Connect the Loudspeakers to the
separate power amplifier and remove the McIntosh
Jumpers that are located between the OUTPUTS 1
Jacks and the PWR AMP INPUT Jacks. Refer to
figure 40.
Note: The McIntosh Jumpers must be connected,
between the above mentioned jacks, when the
MA6600 Internal Power Amplifier is to be used.
The second way is to use both a separate power ampli-
fier and the MA6600 built-in Power Amplifier. Con-
nect one pair of Loudspeakers to the separate power
amplifier and the second pair to the MA6600. Refer to
the MA6600 Output Connection Diagrams located on
the separate folded sheet “Mc1B” and figure 41.
Note: The MA6600 VOLUME Control will affect the
sound level of all the Loudspeakers.
Figure 39
SOURCE: CD1
15%
Figure 37
SOURCE: CD1
HEADPHONE - 15%
Figure 38
SOURCE: CD1
HEADPHONE - MUTE
How to Operate the MA6600, con’t
Figure 18
Figure 40
Jumpers
Figure 41
