Ashly Electronic Amplifier none User Manual
Page 37
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FREQUENTLY ASKED QUESTIONS ABOUT ASHLY CROSSOVERS
Is the "dB" control a slope control?
have a slope of 6dB per octave?
If I set it at 6, will my crossover
A; No, this control has no effect on the ultimate slope of the crossover.
Slope is a fixed parameter; i.e. a 12dB per octave model will always have
an ultimate slope of 12dB per octave, regardless of front panel control
settings.
The
rolloff
(dB)
control
actually
affects
the
damping
of
the
filter
circuit
in
the
vicinity
of
the
crossover
frequency.
In
practice,
this control acts much like an equalizer tuned to the crossover frequency,
with clockwise rotation of the control producing a boost in the summed
response at the crossover point, and a counterclockwise rotation producing
a dip in the summed response. See pages 5 and 27.
Q: Where should I set the "dB" control?
A:
We recommend an initial setting of 6 for our 12dB per octave models and a
setting of 3 for our 18dB per octave models. Then, tune for flattest
response or best sound.
Q: Are Ashly crossovers capable of flat summed amplitude response?
A:
Yes. In addition, other summed response shapes are available via the "dB"
control, helping to compensate for uneven speaker response.
Q; Can my crossover be connected to long snakes and drive low impedance
1 oads?
A:
Yes. The output stage is designed to tolerate low impedance and reactive
loads without degrading performance, and provides good immunity from RF
and other common-mode noise.
Q: What does a flashing peak light indicate?
A:
You are either very close to or already in clipping. Our peak circuit
monitors
signal
levels
at
several
key
points
in
the
audio
chain.
See
page 6.
Q:
How should I choose my crossover frequencies?
A:
Follow speaker manufacturers recommendations for lowest and highest
crossover points. Too low of a crossover frequency may damage some high-
frequency
drivers.
Within
a
given
safe
range
of
crossover
frequencies,
the actual choice of the crossover point is largely a matter of personal
taste and sunnied system response.
Q:
Should I wire any of the crossover outputs out of phase with each other?
A:
No. All necessary phase inversions are done internally in Ashly
crossovers.
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