FBX2410
User Manual: FBX2410
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FBX2410 Feedback Exterminator®
Since Sabine rst invented digital automatic feed-
back control in 1991, FBX Feedback Exterminators
have set the standard for transparent and reliable
automatic feedback control. Now Sabine is proud to
announce the latest innovation in automatic feedback
controllers: the FBX2410 Dual Feedback Controller.
The new FBX2410 includes the latest improvements
to Sabine’s patented feedback control algorithms,
providing the fastest ever feedback detection and
elimination. Sabine’s one Hz placement accuracy
means these lters are even more transparent, and
the signal to noise ratio has been improved by 10dB.
All this means the best just got better.
Super-fast Automatic Feedback Control ■
Quick and Quiet Setup ■
Increased headroom and reduced noise ■
oor
Accurately distinguishes music from ■
feedback
Places lters with 1 Hz resolution ■
Transparent – leaves your sound clear ■
and untouched
Provides more gain before feedback (6 to ■
9dB typical)
24-bit Digital Resolution ■
Three-color LED lter display ■
12 Filters per channel ■
Flexible Filter Controls ■
Dynamic Filter Reset ■
XLR & ¼”TRS inputs/outputs ■
The Power of FBX
FBX Feedback Exterminators set themselves apart for their
ability to control feedback during the program, not just at
setup time. If feedback occurs during that crucial moment of
the show, in the middle of the big solo, or just when the wor-
ship leader begins the sermon, the FBX places a lter that
only kills the feedback, not the sound and power you work
so hard to achieve. Think of the FBX as a very advanced
set of automatic parametric lters. If you had the time, the
lters, and the test equipment, you could nd the feedback
frequencies, dial in the precise lter location, and make a
very narrow lter, just deep enough to remove the offending
tone. The FBX does it all for you automatically, and it does
it faster than any other method. How do we do it? First let’s
consider just how a superior feedback control lter should
behave. Filters can be described by their Speed, Accuracy,
Resolution, and Sonic Integrity.
SPEED: The industry’s best digital signal processors give
the FBX2410 a distinct speed advantage over all other au-
tomatic feedback controllers. And in Setup Mode the speed
is increased, so you can complete your entire setup of the
FBX in less than 30 seconds.
ACCURACY: Is it music or is it feedback? This is the most
difcult question your feedback controller must answer. A
wrong decision means you waste lters (less gain for you)
and punch unnecessary holes in your sound. Less sophis-
ticated feedback controllers place lters on any loud tone,
even if it is music, but the FBX uses a patented analysis of
the harmonic content of your program material. Because
feedback is low in harmonics, and music and speech are
rich in harmonics, the FBX is able to make the correct and
accurate answer to the music or feedback question.
RESOLUTION: This is a big one. Now that we know feed-
back is happening, we need to target it precisely. Many
feedback controllers place their lters in the general vicinity
of the feedback and then widen the lters until the feed-
back goes away. The FBX uses a more sophisticated so-
lution. It centers the lter exactly on the frequency that is
Introducing the next generation in automatic feedback
controllers: cleaner, faster, more transparent
®
FBX2410 Feedback Exterminator®
feeding back. This unique one-Hertz resolution enables the
FBX to control feedback with transparent lters that are ten
times narrower than graphic equalizer lters, which can only
muster 31 spots to place their very wide lters. Feedback
frequencies are single tones, and that means there can be al-
most 20,000 places for them to occur in the audio spectrum.
You can see that using a feedback control device with less
resolution is like shooting a y with a shotgun.
SONIC INTEGRITY: Sabine’s innovative approach to digital
ltering is unique in the industry. Our lters just sound better,
with far less phase distortion and a smoother response. Most
other feedback controllers and graphic equalizers claim to
provide Constant Q lters, but they really get wider as the
lters go deeper. Sabine lters remain extremely narrow re-
gardless of their depth.
Faster Setup…
The FBX2410 gives you the easiest, fastest, and quietest
setup procedure. In less than 30 seconds you will be ready
for your performance, and the whole process is so quiet you
can almost do it without anyone knowing it is happening!
…and a Bright Display
After the super-fast setup is complete the bright blue LED on
the Ready button clearly tells you the show can begin, and
you’ve got all the extra gain you need. You have complete
control of the mix between lter types, and the bright, three-
color LED display shows you your lter status at all times
– you can see it from across the room!
Sabine: The highest quality automatic feedback controller
The new FBX2410 continues Sabine’s leadership in the eld
of innovative and effective feedback control. With improved
specs and audio performance, the FBX Feedback Extermi-
nator is made in the USA. Call us or head to your nearest
Sabine dealer and try the new FBX for yourself. You will hear
your sound and nothing else!
†FBX and FBX Feedback Exterminator are registered trademarks of Sabine, Inc., and are the brand names of its line of automatic feedback controllers. Covered by U.S.
Patent No. 5,245,665, Australian Patent No. 653,736, German Patent No. 69118486.0, U.K. Patent No. 0486679, and Canadian Patent No. 2,066,624-2. Other patents pending.
©2011 Sabine, Inc.
FBX2410 Engineering Specications
FILTERS
12 independent digital notch lters per channel, controlled automatically from •
40 Hz to 20 KHz.
Filter width: user-controllable – either 1/10 or 1/5 octave*, constant “Q”•
Resolution: 1 Hz•
Time required to nd and eliminate feedback: 0.4 seconds, typical @ 1 KHz•
Number of Dynamic vs. Fixed lters per channel: user selectable. Last congura-•
tion stored in memory.
INPUT/OUTPUT
Input/Output Maximum Signal Levels: Balanced +18dBV peak, •
unbalanced +12 dBV peak
Output Drive: Unit will perform as specied driving a load >600 Ohms•
Input Impedance: Balanced or unbalanced >40K Ohms, PIN 2 high•
Output Impedance: Balanced or unbalanced 150 Ohms nominal, PIN 2 high•
Bypass: True power off bypass•
Headroom: +14 dB peak @ 4 dBV nominal input, balanced•
I/O Connectors: XLR-3 and 1/4” TRS•
PERFORMANCE**
Frequency response: 20 Hz - 20 KHz +/- 0.3 dB•
Gain matching: +/- 0.2 dB•
Spectral Variation: + 0.25 dB, 20 Hz to 20 KHz•
SNR - Dynamic Range: >108 dB•
THD: .005% at 1 KHz. < 0.01% 20 Hz - 10 KHz, < 0.025% 10 KHz - 20 KHz•
POWER INPUT
115 VAC: 100 - 130 VAC 50/60 Hz
230 VAC: 200 - 240 VAC 50/60 Hz
FUSE
115 VAC, 0.1 A, 10 W, 0.160 A SB fuse
230 VAC, 0.06A, 10 W, 0.080 A T fuse
DIMENSIONS
1-U rack mount; 19 x 1.75 x 6.25 in. nominal (rack mountable); 48.3 x 4.5 x 15.9 cm
WEIGHT
8.0 lbs. (3.6 kg) nominal
OPERATING TEMPERATURE
Safe operating temperature: -15 to +50 degrees C ambient temperature (5 to 122F)
*Below approximately 200 Hz the feedback lters become slightly wider to increase the feedback and
rumble capture speed at these low frequencies.
**Tests performed using an Audio Precision System One model 322 or equal.
Sabine, Inc.
13301 Highway 441
Alachua, FL 32615 USA
www.Sabine.com
sabine@Sabine.com
Tel: (386)418-2000
Fax: (386)418-2001
One-year limited warranty
Patented†
Other Patents Pending
Made in USA
®
R
S A BINE INC.
MANUF A CT URED BY
ALACHUA, FLORIDA USA
POWER INPUT
120 VAC 50/60HZ 0.06A 10W
SABINE INC.
MANUFA CTURED B Y
ALACHUA, FLORIDA USA
