Crossover Adjustments - Soundstream Rubicon 1002 Owner's Manual And Installation Manual

Crosso v e r A d j u st m e nts
The RUBICON302, 502 and 1002 amplifiers incorporate an on-board
staggered electronic crossover, with RCA outputs to drive an external
amplifier. No external electronic crossover is necessary. The high and low
pass portions of the crossover can be set independently of one another.
To engage the High Pass filter on the Rubicon502 and 1002, set the left
crossover switch on the top of the amplifier to "H.P. X-OVER", and use the
frequency adjustment knob marked "H.P. X-OVER". To engage the Low Pass
filter, set the left crossover switch to either "SUB SONIC" or "HAWKINS
BASS CONTROL" (see pages 11-12 for more details), and set the right cross-
over switch "L.P. X-OVER" to the "IN" position.
On the Rubicon302 to engage full range operation set the crossover switch to
"AP." To engage highpass or lowpass filtering set the crossover to "HP" or
"LP" and use the frequency adjustment dial labeled "X-OVER" to set the
frequency.
12 dB/Octave High Pass
In many car audio installations, there is a tendency for a "midbass boom."
Because of their interior dimensions, most cars will resonate or ring at these
midbass frequencies. If we design the system so there is reduced output in
this region, the final response is very smooth and natural sounding. The high
pass crossover is independently variable from 70 to 160 Hz on the Rubicon502
and 1002, and 50 to 200 Hz on the Rubicon302, at 12 dB/Octave. The low
pass crossover on the Rubicon502 and 1002 is independently variable from
55 to 220 Hz and 40 to 160 Hz on the Rubicon302 at 24 dB/Octave.
For initial crossover setup, try setting the low pass filter to approximately 75
Hz, and the high pass filter to approximately 120 Hz. Change the crossover
points to accommodate a good mixture of frequency response, power han-
dling, and personal preference.
I
MPORTANT:
Do not have the Low Pass filter and the High Pass
filter both engaged at the same time. While this won't damage the
amplifier, the frequency range of the amplified signal will be severely
limited.
24 dB/Octave Low Pass
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