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RCA CONNECTIONS: Connect with quality-shielded patch cords from source,
crossover, or any other sound processor.
SPEAKER CONNECTIONS: Slide wire into plug, with wires going down from
plug connections should be as follows: (From Left to Right): first slot Left (-),
second slot Left (+), Third slot Right (-) and fourth slot Right (+). For mono
operation use Left (+) and Right (-). These amplifiers are capable of 2-ohm
operation in stereo or 4 ohms in mono.
OPERATING THE AMPLIFIER AT LESS THAN THESE RATINGS WILL
CAUSE AMPLIFIER FAILURE AND VOID YOUR WARRANTY.
BRIDGED MONO OPERATION
The Model 992IQ is built with the right channel inverted. This allows the amplifier
to be used in a bridged mono configuration, as well as, a mixed mono/stereo
operation.
These amplifiers are capable of driving 2-ohm mono loads (**4 ohm speaker
impedance**). To use these amplifiers in that configuration, the internal taps
must be changed. Removing the faceplate and changing the spade connectors
from the '4' setting to the '2' setting accomplish this.
The wiring for the bridged mono mode is as follows:
With the connector end of the amplifier facing you, top side up, the speaker
terminal block is arranged: LEFT (-); LEFT (+); RIGHT (-); RIGHT (+). The mono
mode uses the LEFT (+) and RIGHT (-) connections. An electronic crossover,
such as the XO3, should be used to limit the frequency range to the input of the
amplifier for best results.
TWO-OHM CAPABILITY
Unplug the two jumper wires near the four large filter capacitors from the lugs
marked 4 ohm and press them firmly back onto lugs marked 2 ohm. This will
allow the amplifier to operate into a 2-ohm load on each channel, or a 4-ohm load
when used in bridged mono mode (**see statement above**). The lugs are
marked "2" for 2-ohm stereo or 4 ohm bridged, and marked "4" for 4-ohm stereo
and 8 ohm bridged.
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