Soundstream Technologies HR 4 - Manual (Page 10)

CROSSOVER & PHASE ADJUSTMENTS
The Human Reign amplifiers incorporate an on-board staggered electronic
cross-over. No external electronic crossover is necessary. The low pass portion
of the crossover can be set independently of the rest of the system.
In many car audio installations, there is a tendency for a ”midbass boom.” Be-
cause 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 HUMAN
Reign has an always on low pass crossover that is independently variable from
40 to 160 Hz at 24 dB/Octave.
For initial crossover setup, try setting the low pass filter to approximately 60 Hz,
and the high pass filter on the
rest of the system to
approximately 100 Hz.
Change the crossover points
to accommodate a good
mixture of frequency
response, power handling,
and personal preference.
10
Phase Switch
In many car audio systems placement of the subwoofers can cause them to be
out of phase with the rest of the system. This may cause poor subwoofer
performance due to varying arrival times. To eliminate this the Human Reign
incorporates a 0 to 180 phase switch. By playing low frequency music and
experimenting with the subwoofer phasing better sound quality and bass imaging
may be obtained.