Orion Car Audio HCCA-D1200 - Manual (Page 11)

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Sealed Example High-Pass Set at 20Hz
This sealed example is the same 12-inch woofer in the recommended sealed enclosure. Up
to 6 dB of boost is capable if 20 Hz was used. With +6dB of boost, the woofer has more out-
put down to 15 Hz.
Sealed Example High-Pass Set at 30Hz
In this example, the frequency has been increased to 30 Hz. Up to 6 dB of boost is capable
at this frequency. With +6dB of boost, the woofer has more output down to 23 Hz. The
overall usable output is increased.
Vented Example High-Pass Set at 30Hz
Vented enclosures benefit most from the INTELLi Q. Up to 10 dB of boost is capable at the
box tuning frequency of 30 Hz. With +10dB of boost, the woofer has more output down to
22 Hz. The excursion below the tuning frequency has been greatly reduced.