Technical information

Macro-Tech 3600VZ Power Amplifier
Page 9
Fig. 2.2 Rear Facilities
®
INTERNATIONAL, INC.
ELECTRONIC EQUIPMENT
ELKHART, IN 46517
MADE IN U.S.A.
SERIAL NUMBER
0000
000000
GHI JK NKLNNN
IMPORTANT:
CLASS 1 OUTPUT
WIRING REQUIRED.
PUSH TO RESET
120 VAC / 60 Hz / 30 A
BRIDGE-MONO WIRING
TURN AMPLIFIER OFF.
SET STEREO/MONO
SWITCH TO
BRIDGE-MONO.
OUTPUT ACROSS
RED TERMINALS
ONLY. (CH-1
IS POSITIVE.)
PARALLEL-MONO WIRING
TURN AMPLIFIER OFF.
SET STEREO/MONO SWITCH
TO PARALLEL-MONO.
ADD JUMPER (14 GAGE
OR LARGER) ACROSS
RED TERMINALS.
OUTPUT ACROSS CH-1
TERMINALS ONLY.
1
2
3
4
1
2
3
CH-2 OUTPUT CH-1 OUTPUT
+
–
+
–
WARNING:
PROTECTIVE COVER
MUST BE IN PLACE
OVER OUTPUT TERM-
INALS BEFORE OPER-
ATING AMPLIFIER.
UNBALANCED
INPUT WIRING
BALANCED
INPUT WIRING
THIS AMPLIFIER IS EQUIPPED WITH SELECTABLE INPUT SENSITIVITY. REMOVE P.I.P. MODULE TO ACCESS SENSITIVITY SWITCH.
CH-2 CH-1
+
–
TIP
RING
SLEEVE
GND
INPUT GROUND LIFT
LIFT
+
TIP
SLEEVE
GND
(AFFECTS PHONE INPUTS ONLY.)
INPUTS
CAUTION: TURN OFF AMPLIFIER
BEFORE CHANGING THIS SWITCH!
STEREO
BRIDGE
MONO
PARALLEL
MONO
MAXIMUM OUTPUT: 1800
WATTS PER CHANNEL INTO
2 OHMS AT 1 KHz WITH NO
MORE THAN 0.1% THD.
(MONO)
Programmable
Input Processor (P.I.P.)
3
12
GND
INPUT INPUT
CH-2 CH-1
PUSHPUSH
FX
MM
REG. U.S. PAT. OFF.
4,330,809
4,611,180
4,788,452
100 VAC / 20 A / 50-60 Hz
120 VAC / 20 A / 50-60 Hz
230 VAC / 10 A / 50-60 Hz
available to drive a single load with an impedance less
than 4 ohms. Important: Do NOT change this switch
unless the amplifier is first turned off (see
Section 3.3).
I. Reset Buttons (PUSH TO RESET)
These reset buttons are used to reset the breakers that
safeguard the power supplies from overload (see
Section 4.3).
J. P.I.P. Module
Versatile Programmable Input Processor modules pro-
vide flexible expansion features that can be added to
customize the amplifier. P.I.P. modules plug into the
connector inside the back panel of the amplifier. A P.I.P.
module’s input connectors are placed in parallel with
the input phone jacks. The P.I.P.-FX is included as a
standard feature to provide balanced XLR inputs. It has
no internal circuitry and can be used along with the
input phone jacks to facilitate “daisy chaining” multiple
amplifiers. See Section 8 for a list of available P.I.P.
modules.
K. Balanced Phone Jack Inputs
A balanced ¼ inch phone jack is provided for input to
each channel. They may be used with either balanced
(tip, ring and sleeve) or unbalanced (tip and sleeve)
input wiring (refer to Section 3.3). Because these in-
puts are in parallel with the P.I.P. connector, they should
not be used as inputs if the installed P.I.P. has active
circuitry. Caution: The Channel 2 input should NOT
be used in either mono mode.
L. Ground Lift Switch
The input signal ground may be isolated from the AC
ground with this switch to help prevent the hum cre-
ated by unwanted ground loops. It affects only the in-
put phone jacks. It has no affect on the P.I.P. module’s
XLR input connectors. Activating the switch inserts an
impedance between the sleeve of each phone input
jack and the circuit ground.
M. Balanced XLR Inputs
A balanced 3-pin female XLR connector is provided
for input to each channel by the P.I.P.-FX, a standard
feature of your amplifier. The XLR connectors are in
parallel with the amplifier’s phone jacks. Because there
is no active circuitry on the P.I.P. , the XLR connectors
can be used at the same time as the phone input jacks
for “daisy chaining” multiple amplifiers. Caution: The
Channel 2 input should NOT be used in either mono
mode.
N. Output Jacks
Two pairs of dual binding posts are provided for the
output of each channel so multiple loudspeakers can
be connected easily. The connectors accept bare wire
or spade lugs.
❑ Input Sensitivity Switch
The three position input sensitivity switch inside the
amplifier can be accessed by removing the P.I.P. mod-
ule. Settings include 0.775 volts and 1.4 volts for rated
output, and 26 dB voltage gain (see Section 4.4).