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When the switch is in the middle (ALL position), the high-pass cross-
over is bypassed. When the switch is to the right (HIGH position), the
high-pass crossover is active. The high-pass crossover is continuously
variable from 50Hz to 2kHz.
The remote gain port provides easy remote access to the internal gain
structure of the HCCA power amplifier. The optional RGC2 plugs into
the amplifier via the 1/8" mini jack plug. The RGC2 can be installed
in the front of the vehicle near the driver's position to control the
amplifier gain level. On HCCA10004, it only affects the rear channels
by default.
By removing low frequency signal that the woofer cannot produce,
the woofer can play its capable range louder. The first example is
an infinite baffle situation. The left graph displays the frequency
response of a 12-inch woofer in an infinite baffle application without
the high-pass filter. As you can see, with +3dB of boost and the high
pass filter set to 30Hz, the woofer has more output down to 25Hz and
less overall excursion when compared to the non-high-pass response.
Maximum physical excursion capability of the woofer is 15mm.
© 2009 Directed Electronics. All rights reserved.
Figure 6
Figura 6
Abbildung 6
Figure 7
Figura 7
Abbildung 7
NOTE: The first graph is the response; the second graph is the driver
excursion. These designations apply to the following graphs as well.
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