Low-Pass Crossover; Fine Tuning The Crossovers; Adjusting Intelli-Bass - Orion HCCA-D600 Owner's Manual

WARNING! DO NOT set crossover frequencies lower than the speakers recommended
operating range. This can cause driver failure that is not covered by the man-
ufacturer's warranty.

Low-Pass Crossover

The low-pass crossover adjusts the upper crossover of the filter and is continuously variable
from 30Hz to 250Hz.

Fine Tuning the Crossovers

The low-pass and high-pass crossover sections are each marked at four frequency points for
ease of system adjustment. The low-pass crossover section is marked at 30Hz, 50Hz, 150Hz,
and 250Hz. The high-pass crossover section is marked at 20Hz, 33Hz, 90Hz and 150Hz.
Specific crossover points can be chosen based on the recommended operational bandwidth
of your speakers.

Adjusting INTELLi-Bass

INTELLi-Bass on the rear channels maximizes the performance of a subwoofer and allows
for continuous adjustment of low frequency boost on the rear channels. INTELLi-Bass can be
adjusted from 0dB to 18dB of boost centered at 45Hz. Initially the Q is very low (wide). As
INTELLi-Bass is added, the Q rises (narrows). This allows the amplifier to overcome acoustic
deficiencies in your vehicle. The type of enclosure used, the sub-woofer's excursion capabil-
ity, personal preference, and attitude determine acceptable boost levels.
WARNING! Exercise caution when setting INTELLi-Bass. Maximum boost can potentially
cause woofer damage due to overexcursion.
Enclosure Type
Infinite Baffle
Sealed
Vented
Sealed Band-pass
Vented Band-pass
Aperiodic
8
Boost Levels
0dB +3dB
Tune above High X-Max
Fs of woofer Drivers--Tune
above Fs of
woofer
Tune above Tune above
Fs of woofer Fs of woofer
Tune to port Tune to port
frequency frequency
Tune above Tune above
Fs of woofer Fs of woofer
Tune to port Tune to port
frequency frequency
Set crossover Set crossover
to Fs of to Fs of
woofer woofer
+6dB +10dB
Not Not
Recommended Recommended
High X-Max Not
Drivers--Tune Recommended
above Fs of
woofer
Tune to port High X-Max
frequency Drivers--Tune to
port frequency
High X-Max Not
Drivers--Tune Recommended
above Fs of
woofer
Tune to port High X-Max
frequency Drivers--Tune to
port frequency
Set crossover Not
to Fs of Recommended
woofer
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