Alto MAC 2.2, Owner'S Manual, Page: 8 / 16

1 2
3
BRIDGED INPUT
CH-2
LINE
BALANCED
INPUT
LINE
CH-1
CLIP LIMT
OFF ON
BRIDGED
STEREO
PARALLEL
(MONO)
OFF ON
LF 30HZ
FILTER
1.15V/20K
INPUT
CONNECTION
(+)
- ( )
(GND)
SRT
T(+)
S(GND)
R( ) -
CH-1 CH-2
BRIDGED
MONO
CHANNEL1 CHANNEL2
A104
BREAKER
SERIAL
MODEL
DESIGNED IN ITALY
CH1
1+
2+
1+
1
2
BRIDGED
CH2
1
2 1
3
PUSH
2 1
3
PUSH
16 15
13 10
14 8 12
9 11
Rear Panel:
8 CIRCUIT BREAKER
This is an electronic fuse for protecting the unit from possible damage. When the
unit is overloaded or the temperature inside the unit is too high, this push-type
button will spring out and disconnect the power supply. Push the Breaker to
restore normal working conditions.
9 IEC socket for AC power cable
Connect the supplied main cord. Do not insert the power cord into the MAC 2
series amplifier and into the AC Outlet until voltage has been correctly set.
10 XLR BALANCED INPUT CONNECTORS
Each Channel features balanced XLR and 1/4" jack sockets wired in parallel. The
Balanced signals are less sensitive to hum noise generated by AC.
11 SPEAKON OUTPUTS (Channel 1 & Channel 2)
These connectors are specifically designed to connect high power speakers. The
correct polarity is secured automatically, they prevent shock hazard and they lock-in
securely.
12 BINDING POST OUTPUTS (Channel 1 & Channel 2)
Please make sure to respect the speaker polarity when using binding post.
turn off the unit before connecting an audio signal to the binding post to
avoid any electric shock!
Caution:
3. CONTROL ELEMENTS
SPO
TLIGHT
6