Directed Electronics Orion HCCA-D600 Manuel du propriétaire - Page 9

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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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