SABINE FBX SOLO SL-610 Operating Manual page 2

2
A DIRECT HIT ON FEEDBACK!
FBX-SOLO targets feedback without taking
a big chunk out of your sound. Tests prove
that a single 1/3-octave EQ slider pulled
down 12 dB removes almost half the power
going to the speakers over a two-octave
range. And, as the illustration at right
shows, you can't place a graphic EQ filter
precisely on the ringing frequency. When
you pull down multiple sliders in a normal
setup (below), you end up with giant holes
in your sound. On the other hand, FBX
micro-filters are 10 times narrower - you get
back up to 90% of the power you lose with a
graphic EQ! That means more gain before
feedback and no loss in sound quality.
0.0 dBV
-1.875
-3.750
-5.625
-7.500
-9.375
-11.25
-13.13
-15.00
100 Hz
HOW CAN THE SOLO BE USED?
Assign a SOLO to any specific mixer channel. Use the SL-610 model for line level insert
points on your mixer's inputs. Use the SM-610, which includes a microphone preamp and
user-selectable phantom power, with mixers that don't have insert points. You can also use
the SM-610 to connect a phantom-powered mic to a non-phantom-powered mixer.
Look for this symbol for
specific information on
the SL-610, for mixer
insert points.
0 dB
The
6 dB
12 dB
500 Hz
1K
1000 Hz
FREQUENCY RESPONSE:
Full Set-Up FBX vs. 1/3-Octave Graphic
Equalizer.
Test procedure: A PA system was
set up using a microphone, mixer, FBX, power
amp and two speakers. The system's gain was
raised until the FBX removed six feedback points.
Next, the FBX was replaced with a 1/3-octave
graphic EQ. The EQ was adjusted while the
input was raised to the same level achieved with
the FBX. The frequency response curves of each
device were then plotted.
What this means to you: Doubling the cost of your
microphones, speakers and power amp probably
would not improve your system's frequency
response as much as replacing your EQ with an
FBX for chasing feedback.
10K
Look for this symbol for
specific information on
the SM-610, for mic or
instrument inputs.
2000 Hz