- 17 -
Issue 2
O
BTAINING A
600W S
INGLE
L
OUDSPEAKER
O
UTPUT
FIGURE 7 (Page 24) -
1 Zone of 600W Using 2 Slave Amplifiers
Shows how two 300W slaves may be configured to produce 600 Watts into a single load. We do not
recommend paralleled outputs because both amplifiers would have to possess identical gain and phase
throughout the audio frequency range. The two 50V outputs are connected in series to produce 100V
to the load and small changes in gain will not cause any problems. Both amplifiers must be of the
same power output rating and the gains are set to produce the same output voltage within 5%. If in
doubt set both to maximum.
FIGURE 8 (Page 25) -
1 Zone of 600W Using a Master and Slave Amplifier
Shows how a 300W slave may be connected to a 300W integrated amplifier to produce 600 Watts into
a single load. To obtain an output from the integrated amplifier all zone selection relays are energised
by applying 0V to the ‘ALL’ terminal of the zone selector. The slave amplifier obtains its input signal
from the floating line output selected to ‘post master V/C’ and must be in the correct phase. As with
the previous example the outputs are wired in series. The slave volume (gain) must be set so both
amplifiers produce the same output voltage within 5%. Input 1 of the slave is enabled by selecting
both DIL switches off therefore a link is not required between access and 0V.
FIGURE 9 (Page 26)
Shows how 2 300W amplifiers may be connected to provide 10 inputs and 600W output using the
power amplifier input socket.
FIGURE 10 (Page 27)
Slave amplifier rear view showing controls and connections.
FIGURE 11 (Page 27)
Shows where to position self-adhesive cable ties to help cable management.
FIGURE 12 (Page 28)
Rack and wall mounting adapters.
FIGURE 13 (Page 28)
Stacking bracket.
R
EMOVING THE
C
OVER
Ensure that the AC power has been unplugged
.
To remove the cover from the Mitre, remove all screws from cover. There are 9 x M3 screws and 4
No.4 self-tapping screws.
Lift cover from chassis.
Re-assembly is the reversal of the above, but please ensure the No.4 screws are refitted to the
extrusion rails at the front of the amplifier.
