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(5) INPUTS
The input jacks are in parallel, to allow the audio input signal to be daisy-chained to other
devices. The "output" level is the same as the "input" level and there is no isolation between
the various jacks. The input is of the high impedance balanced type with high CMRR
(excellent hum rejection). One input is a male XLR, and the other is a combo female XLR and
1/4" RTS connector.
(6) LEVEL
Controls the gain of the Impulse 500P Subwoofer. When used with the Input jacks (5), it is
used to directly set the system output level. It does not affect the level of the signal coming
out of the High Pass Filtered Output jacks. The high frequency levels can be set on that unit
using its volume control.
(7) HIGH PASS FILTERED OUTPUTS
Provide a high pass filtered output to be fed to a powered full range enclosure, or what would
nominally be a full range sound system, that is, a speaker system and a power amplifier. The
output level is not controlled by the volume knob on the Impulse 500P Subwoofer, but should
be set using the volume control on the separate powered enclosure used for the highs, or the
power amplifier used to power the highs in the separate speaker enclosure.
OPERATING INSTRUCTIONS
CAUTIONS
The heat sink on the back plate can become hot to the touch. Do not block or cover the heat
sink from ventilation.
When using the Impulse 500P Subwoofer with a stand, be sure to position one of the legs in
the same direction as the rear of the system for maximum stability. Never use stands on
unstable or tilted surfaces!
DO NOT connect the inputs of the Impulse 500P Subwoofer to the output of a power
amplifier. The inputs are meant to be driven from a line level strength signal.
DO NOT remove the protective metal grille.
DO NOT use the INPUT jacks as mixers by trying to run more than one signal source at a
time into them. The INPUT jacks (5) are all hard-wired together to allow use of any of the
connector types as an input, and to allow a further send or "daisy-chaining" of the input signal
to some other audio device (such as another Impulse 500P Subwoofer or other powered
speaker). Attempting to run two different source signals directly into the Impulse 500P
Subwoofer could damage the outputs of the source units. Use a mixer to combine two or
more signals into a single signal sent to the Impulse 500P Subwoofer input.
WARNING: The Impulse 500P Subwoofer is extremely efficient and powerful! This
sound system can permanently damage hearing! Use extreme care setting the overall
maximum loudness! The apparent sound level of the Impulse 500P Subwoofer can be
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