OWNER' S MAN U A L - 7
High-Pass Crossover
When the switch is to the right (FULL position), the high-pass
crossover is bypassed. When the switch is to the left, the high-pass
crossover is active. The high-pass crossover is continuously variable
from XTR500.4,XTR750.4 and XTR1000.4 : 50Hz - 5kHz ,
Adjusting Bass Boost
Bass Boost maximizes the performance of a subwoofer and allows for
continuous adjustment of low frequency boost on the rear channels.
Bass Boost can be adjusted from 0dB to 18dB of boost centered at
45Hz. Initially the Q is very low (wide). As Boost is added, the Q rises
(narrows). This allows the amplifier to overcome acoustic deficien-
cies in your vehicle. The type of enclosure used, the sub-woofer’s
excursion capability, personal preference, and attitude determine
acceptable boost levels.
WARNING! Exercise caution when setting Bass Boost. Maximum
boost can potentially cause woofer damage due to over-excursion.
NOTE: While the amplifier allows up to 18dB of boost, it is possible
to clip the amplifier with comparatively low output levels in other
frequency ranges.
Phase Shift Control
• 0° - leaves output unaffected. The output signal is in phase with
• 180° - inverts the output. The channel is 180° output of phase.
This configuration is useful for inverting the phase of subwoofers
to improve staging in a vehicle.
Remote Gain Operation
NOTE: Do not use the Remote Gain control when you have an
expanded system installed (see Line Output Configurations).
The Slave amplifier(s) gain will not be controlled.
The remote gain port provides easy remote access to the internal gain
structure of the XTR power amplifier. The Remote plugs into the
amplifier via the 1/8” mini jack plug. The Remote can be installed in
the front of the vehicle to control the amplifier gain level. The Remote
can be used as a bass level control when used on an amplifier
dedicated to subwoofers.
XTR1700.4 and XTR2500.4 : 50Hz-1.5kHz/500Hz-15kHz(Using x10
feature).
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