SABINE FBX SOLO SL-610 User manual

CONGRATULATIONS! You now have the state-of-the-art in feedback control. The Sabine
FBX-SOLO gives you automatic real-time feedback control for any channel on your mix,
makes your system louder, and increases the clarity of your mains and monitors. It includes
a user-selectable noise gate, especially useful in systems with a number of open micro-
phones, such as courtrooms or conference rooms.
The FBX-SOLO incorporates the latest in design and digital signal processing technology.
It automatically senses feedback in a sound system and determines its pitch. It then places
one of its six micro-filters on the resonating frequency and eliminates the feedback in
typically less than one second.
Before the invention of the FBX, the most common device for controlling feedback was the
31-band graphic EQ. However, the FBX has three distinct advantages. The most obvious
is the FBX functions automatically, even during the program. Another is the FBX micro-
filters are precisely placed while EQ filters are fixed. The difference: FBX filters do not have
to be as deep, so there is more system gain. The most important advantage is that FBX
micro-filters are ten times narrower than 31-band EQ filters. FBX micro-filters return up to
90 percent of the power removed by EQ filters.
Over the years, engineers stopped using 12-band EQs in favor of the narrower-filter 31-
band EQ for controlling feedback. The FBX represents the next step. An EQ would need
more than 10,000 sliders to be equivalent to your FBX. With the SOLO, your monitors will
finally sound loud enough, everyone in the audience will understand each word, and the
mains will sound natural and transparent.
OPERATING
GUIDE
The Sabine
FBX-SOLO
models SM-610
andSL-610.
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, and Canadian Patent No. 2,066,624-2. Other patents pending.
SL-610
SM-610

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.
2
12 dB
500 Hz 1000 Hz 2000 Hz
6 dB
0 dB
FREQUENCYRESPONSE:
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.
100 Hz
-15.00
-13.13
-11.25
-9.375
-7.500
-5.625
-3.750
-1.875
0.0 dBV
1K 10K
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Look for this symbol for
specific information on
the SL-610, for mixer
insert points.
Look for this symbol for
specific information on
the SM-610, for mic or
instrument inputs.
A DIRECT HIT ON FEEDBACK! The
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.

Note: See pages 8 and 9 for front and back panel illustrations and descriptions.
The FBX automatic feedback controller improves any sound reinforcement system. By
following these simple instructions, you will be assured of the most benefit from your FBX
and sound system. The instructions presume that you are familiar with the fundamentals of
sound reinforcement. If any of the terms are not clear, or if the system does not perform as
expected, contact your local Sabine dealer for further information. Read on for a basic
explanation of FBX features you should understand before using your FBX.
POWERING UP
The only way to power up the FBX-SOLO is by connecting the power supply to
the unit; there is no power switch on the FBX-SOLO. When connecting the
power supply to the FBX-SOLO, push the connector into the input gently, with
the lip facing up as shown. Do not force the connector into or out of the FBX.
FIXED vs. DYNAMIC FILTERS
The FBX has two types of filters: FIXED and DYNAMIC. FIXED FILTERS are set during the
initial setup and retain their frequency center-points until the unit is reset by the user. The
system’s gain before feedback is provided by the FIXED FILTERS; i.e., increasing the
number of FIXED FILTERS increases the system’s gain before feedback. The FBX's DY-
NAMIC FILTERS control intermittent feedback that occurs during the program. They are
continually reset automatically to different frequencies as new feedback occurs during the
program. For many applications, the optimal setting is the one which gives maximum
gain - i.e., four FIXED and two DYNAMIC filters (default setting). However, in some
applications, such as use of wireless microphones, mobility is more important than
maximum gain. In this case you may wish to set three fixed and three dynamic filters.
The filters can be reconfigured easily from the factory default setting (four fixed and two
dynamic). For example, the following procedure will set three filters fixed and three dynamic:
1. Place the unit in BYPASS mode.
2. Power down the SOLO.
3. While depressing the RESET button, power up the unit.
4. Release the RESET button. The FILTER INDICATOR LEDs will now light in sequence.
5. When the third LED is lit, press the RESET button.
6. Notice that the first three LEDs flash three times to verify that they are now the fixed
filters.
Note: The fixed filters flash three times whenever the FBX is powered up.
WHERE TO PLACE THE SOLO IN YOUR SOUND SYSTEM
SL-610: Patch the SL-610 into the insert point of the desired channel. If your mixer has a
single connector insert point, connect the mixer to the IN/OUT connector on the SL-610 using
one TRS (Tip=input/Ring=output/Sleeve=ground; 1/4" phone connector) cord. Otherwise, use
the IN/OUT connector as the SL-610's input and the OUTPUT as the output. You can also
use a Y-cord from a single connector insert point. (See page 10 of this manual for informa-
tion on use with a guitar amplifier.) Use the following wiring diagrams (presented in order
of most common to least common setup) as guides for setup:
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3
INSTRUCTIONS FOR OPERATION
SL-610,
Configuration1:

SM-610: Connect your microphone or instrument directly to the SM-610 mic level input, and
then connect the SM-610's line level output to an input on your mixer or amp. (See page 10
of this manual for information on use with a guitar amplifier.) The SM-610 input accepts both
standard 1/4" phone and XLR input connectors.
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4
SL-610,
Configuration2:
SL-610,
Configuration4:
SL-610,
Configuration3:
SM-610 Setup:

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5
SL-610 SYSTEM INITIALIZING PROCEDURE
Follow these steps to obtain the maximum gain before feedback without changing the tonal
quality of your program. Set up only one SOLO at a time. The following instructions are for
using the SOLO on the mains. For use with monitors, substitute monitor send and
master monitor control for input channel level fader and mixer master output. Be
sure to turn off the mains when initializing the SOLO in your monitor system.
11. Place the speakers and microphones in the positions where they will be used
during the program. Avoid placing microphones directly in front of speakers.
2. Set the mixer master output, all channel level faders, and the monitors to mini-
mum.
3. Turn on the SOLO by connecting the power supply to the SL-610. (There is no
power switch.)
4. Turn on the mixer, any signal processing equipment, and finally the power amp.
Press the SOLO's RESET button until the LEDs stop flashing to clear out filters
set previously.
5. If you are using a graphic EQ, adjust it only for the desired tonal qualities. DO
NOT NOTCH FOR FEEDBACK.
6. Be sure the SL-610 is in active mode. The "BY" LED will light green to indicate the
SL-610 is active and red if it is in bypass mode.
7. To set the input channel clip level, play program material at nominal levels and
adjust the mixer input gain control as high as possible without lighting either the
channel or FBX CLIP LED. This will optimize the dynamic range of the SOLO
with the channel of the mixer.
8. Set the mixer master output to a nominal level, and lower all channel levels to minimum.
9. Slowly raise the input channel level fader for the channel being set until feedback occurs.
The SL-610 should quickly remove the feedback. The first FILTER LED will then blink to
indicate a filter has been set.
10. Keep raising the level slowly until all FIXED FILTERS and one dynamic filter is set. Any
uninitialized dynamic filters will be set later if feedback occurs during the program.
11. Now lower the channel level fader slightly so that the system is not on the verge of
another feedback point. This is the maximum volume level that the SL-610 will be able to
provide. Higher levels will cause uncontrollable feedback.
Note: Once you become accustomed to this procedure, you will be able to set up your FBX in
one or two minutes.
SM-610 SYSTEM INITIALIZING PROCEDURE
SM-610 Phantom Power Selection:
Your SM-610 is delivered from the factory with the phantom power function enabled. If
you do not wish to use phantom power - for example, if your microphone will be adversely
affected by using phantom power - you may disable the function by opening the unit and
switching the jumper. Please note: Phantom power does not affect mics with 1/4" input jacks.
The majority of low impedance balanced non-phantom-powered mics are wired to ignore
phantom power. Check your microphone owner's manual for verification to avoid damage.
To defeat phantom power, follow these instructions:
1. Disconnect the power supply and remove the SM-610's MIC GAIN knob, nut and washer
on the front panel.
2. Remove the back panel's four corner screws. Gently pull the back panel and printed
circuit board assembly out of the unit.
3. Find the phantom power jumper, located between the XLR connector and the 1/4"
connector. See the following diagram. (The jumper is shown in enabled position.)

4. Pull the jumper off the pins in phantom power enabled position, and push the jumper
onto the pins in phantom power disabled position, as shown:
5. Carefully slide the printed circuit board and back panel assembly back into the unit, and
re-insert the four corner screws.
6. Re-install the front panel nut, washer and MIC GAIN knob.
To initialize the SM-610:
Follow these steps to obtain the maximum gain before feedback without changing the tonal
quality of your program. Set up only one SOLO at a time. The following instructions are for
using the SOLO on the mains. For use with monitors, substitute monitor send and master
monitor control for input channel level fader and mixer master output. Be sure to turn off the
mains when initializing the SOLO in your monitor system.
1. Place the speakers and microphones in the positions where they will be used during the
program. Avoid placing microphones directly in front of speakers.
12. Set the mixer master output, all channel level faders, and the monitors to minimum.
13. Turn on the SOLO by connecting the power supply to the SM-610. (There is no power
switch.) Make sure the channel input is set for line, not microphone. Press RESET until
the LEDs stop flashing to clear out filters set previously.
4. Turn on the mixer, any signal processing equipment, and finally the power amp.
15. If you are using a graphic EQ, adjust it only for the desired tonal qualities. DO NOT
NOTCH FOR FEEDBACK.
6. Be sure the SM-610 is in active mode. The "BY" LED will light green to indicate the SM-
610 is in active mode and red if it is in bypass mode.
7. To set the SOLO clip level, play or talk into the connected microphone at nominal levels
(if using the SM-610 with an electric/acoustic guitar, set the guitar's output control to
maximum) and adjust the SOLO's MIC GAIN control as high as possible without lighting
its red CLIP LED. Then adjust the SM-610 MIC GAIN control one click counter-clockwise
to insure a margin of safety before clipping. If your mixer has an input gain control, adjust
it to match the clip level of the SOLO.
8. Adjust the mixer's master output to a nominal level, usually 0dB.
9. Slowly raise the channel level fader for the channel being set until feedback occurs. The
SM-610 should quickly remove the feedback. The first FILTER LED will then blink to
indicate a filter has been set. (For use with electric/acoustic guitars, adjust the SM-610
MIC GAIN control fully clockwise at this point to speed up the filter-setting process.
Return the MIC GAIN control to the previously determined level setting after initialization.)
10. Keep raising the channel level fader slowly until all FIXED FILTERS and one dynamic
filter is set. Any uninitialized dynamic filters will be set later if feedback occurs during the
program.
11. Now lower the channel level fader slightly so that the system is not on the verge of
another feedback point. This is the maximum volume level the SM-610 will be able to
provide. Higher levels will cause uncontrollable feedback.
Note: Once you become accustomed to this procedure, you will be able to set up your FBX in
one or two minutes.
HOW TO USE THE "LOCK FIXED" FEATURE
In certain situations the FBX may mistake music for feedback and drive the fixed filters
deeper than necessary. Typical examples might be in a church with a pipe organ or during a
performance with a great deal of intentional sustained electric guitar feedback. You may
prevent the fixed filters from deepening beyond their initial depth by pressing the "LOCK
FIXED" button on the front panel AFTER setting the fixed filters as described previously. The
"LOCK FIXED" LED will light to indicate that the FBX is in "LOCK FIXED" mode. The fixed
filters will stay locked until you press the "LOCK FIXED" button again. The dynamic filters are
not affected. In almost every situation, it is best to lock the fixed filters right after the
initial setup.
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7
LIMITING THE TOTAL NUMBER OF ACTIVE FILTERS
You may choose to limit the total number of active filters for each application by using the
"LOCK FIXED" button. For example, if you wish to use only three fixed and one dynamic
filter, set the FBX so there are five fixed and one dynamic filter. Then during the setup
procedure, simply press the "LOCK FIXED" button after setting the first three fixed filters.
The remaining two fixed filters will be locked in their zero position.
SELECTING FILTER WIDTH
If the SOLO is to be used for a music application, 1/10-octave filters are most effective.
However, in spoken word applications, such as lectures or teleconferencing, the wider 1/5-
octave filters are recommended. Select the filter width using the switch on the SOLO back
panel. The change takes effect only on power-up. Selecting a new width has no effect unless
you power down and then power up again.
ENGAGING THE NOISE GATE
One outstanding feature of your FBX-SOLO is a user-selectable noise gate. It acts as an
automatic switch that opens a microphone only when someone is speaking directly into the
mic. A noise gate is especially useful in systems that have a number of open microphones,
such as courtrooms, conference rooms, or parliament buildings. Gating microphones greatly
reduces the number of possible feedback points in the room and allows for more system
gain.
The level that turns the noise gate on and off is called the threshold. If the level coming into
the gate is greater than the threshold, the noise gate opens, and the mic is
turned on. If it is less than the threshold, the noise gate closes, and the mic is
turned off.
You can adjust your SOLO to four different threshold levels (see diagram at
right), or turn it off. To select the threshold, power down the SOLO. Hold in
the LOCK FIXED button, and power up the SOLO. The clip level LEDs will
light in sequence. Select the threshold level by pressing the LOCK FIXED
button again when the clip LED lights at the corresponding threshold level.
The noise gate is now enabled, indicated by a flashing level LED on power-
up. Pressing the LOCK FIXED button with no clip LEDs lighted turns off
the noise gate. If no lights flash on power-up, the noise gate is not
engaged. When the SOLO's noise gate is enabled, it will not become
engaged until after you've set all fixed filters and one dynamic filter (if the
SOLO is configured for any).
USING SABINE'S OPTIONAL SOLO ACCESSORIES
1-U rack tray (model #SL6RACK):
An optional 1-U rack tray holds up to six SOLOs. Mount the SL-610s, SM-610s, or a combi-
nation of both side by side on the tray. Use only Sabine supplied screws; use of any other
screws may damage the SOLO and void the warranty.

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SL-610 Front & Back Panels
ACTIVE/BYPASS
Bypassmodetakesthe unitout ofthe signalpath sothat itwill
havenoeffectontheprogram.InActivemode, the unitcontrols
feedbackautomatically.Thetwo-color"BY"LEDlightsgreen
whenthe unit is in Activemode andlights red when in Bypass
mode.
12VDCADAPTOR
TheFBX externalpowersupply(singleunitpowersupply;
model #S-PSU1) is included with the unit. Use of any other
powersuppliesmaycausepermanentdamagetotheunitand
WILL VOID THE WARRANTY.
8
MEMORY:
TheFBXstoresthepositionsanddepthsofthefiltersinnonvolatileinternalmemorywhentheunitisturnedofforduringapower
failure. Theunit willreturn allfiltersto theirpreviousfrequencies anddepths whenitis turnedback on.
BYPASSMODE:
TheSL-610 has a true power-offbypass.The signal is unaffectedinbypass mode even iftheunit is turned off. Ifthe
unit is in active mode, no signal will pass if the power is off.
PlacingtheSM-610inbypassmodeonlyshutsdowntheFBXfunction;themicrophonepreampstillfunctionswhenthe
unitisin bypass mode. The SM-610 will not passsignalifthe power is off in either active orbypassmode.
RESETTINGTHEFILTERS:
TheusermustresettheFBXifthemicrophonesorspeakersaremovedsignificantly.Toresettheunit,pressRESETuntiltheLEDs
stopflashing.
POWERDOWN:
PlacetheunitinBYPASSMODEbeforeremovingpowerfromtheunit.
LOCK FIXED FILTERS
When the "LOCK FIXED" button is pressed, its LED will light to
indicate that the FBX is in "LOCK FIXED" mode. "LOCK
FIXED"modecanbeactivatedatanytimeaftersystemsetup
andwill stay onuntilthe buttonispressed againandthe LED
turns off.
FILTER ACTIVITY
Whenoneoftheunit’sfiltersisactivated,thecorresponding
LED lights. A blinking LED indicates the filter that was most
recentlyactivated.
RESET
Press until the LEDs stop flashing to reset or clear all filters.
FILTER WIDTH SWITCH
Switchtonarrow1/10-octavefiltersformusicapplicationsorto
wider1/5-octavefiltersforspokenwordapplications.The
changetakeseffectonlyonpowerup.Selectinganewwidth
hasnoeffectunlessyoupowerdownandthen powerupagain.
INPUTS&OUTPUTS
TheconnectorlabeledIN/OUTservesasboththeunit'sinput
(tip) and output (ring) when used with a single TRS plug. When
used with a Y-cord, use the IN/OUT as the input and the
OUTPUT as the output.

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SM-610 Front & Back Panels
9
ACTIVE/BYPASS
InActivemode,theunitcontrolsfeedbackautomatically.The
two-color"BY"LED lights greenwhen the unitisin Active mode
andlightsredwheninBypassmode.Phantompowerandthe
micpreampremainactiveinBypassmode;onlytheFBXfunction
isbypassed.
12VDCADAPTOR
TheFBX externalpowersupply(singleunitpowersupply;
model #S-PSU1) is included with the unit. Use of any other
powersuppliesmaycausepermanentdamagetotheunitand
WILL VOID THE WARRANTY.
LOCKFIXED FILTERS
When the "LOCK FIXED" button is pressed, its LED will light to
indicate that the FBX is in "LOCK FIXED" mode. "LOCK FIXED"
modecanbeactivatedatanytimeaftersystemsetupandwill
stayon until the button ispressed again and the LEDturns off.
FILTER ACTIVITY
Whenoneof the unit’sfiltersisactivated, the correspondingLED
lights. Ablinking LEDindicates thefilter that was most recently
activated.
RESET
Press until the LEDs stop flashing to reset or clear all filters.
MIC GAIN
Usethistocontrolthemicrophonepreamplevel.Adjustitashigh
aspossiblewithoutlightingtheSOLO'sred CLIP LED.
MEMORY:
TheFBXstoresthepositionsanddepthsofthefiltersinnonvolatileinternalmemorywhentheunitisturnedofforduringapower
failure. Theunit willreturn allfiltersto theirpreviousfrequencies anddepths whenitis turnedback on.
BYPASSMODE:
TheSL-610 has a true power-offbypass.The signal is unaffectedinbypass mode even iftheunit is turned off. Ifthe
unit is in active mode, no signal will pass if the power is off.
PlacingtheSM-610inbypassmodeonlyshutsdowntheFBXfunction;themicrophonepreampstillfunctionswhenthe
unitisin bypass mode. The SM-610 will not passsignalifthe power is off in either active orbypassmode.
RESETTINGTHEFILTERS:
TheusermustresettheFBXifthemicrophonesorspeakersaremovedsignificantly.Toresettheunit,pressRESETuntiltheLEDs
stopflashing.
POWERDOWN:
PlacetheunitinBYPASSMODEbeforeremovingpowerfromtheunit.
INPUT
TheinputacceptsunbalancedTS(Tip/Sleeve)1/4"phoneplug,
balancedTRS (Tip/Ring/Sleeve)1/4"phoneplug,orbalanced
XLR-3(PIN 2high) plug.
OUTPUT
UseunbalancedTS1/4"phoneplugforunbalancedmixerline
inputs.UsebalancedTRS1/4"phoneplug(tiphigh)forbalanced
mixerlineinputs.
FILTERWIDTH SWITCH
Switchtonarrow1/10-octavefiltersformusicapplicationsorto
wider1/5-octavefiltersforspokenwordapplications.Thechange
takeseffectonlyonpowerup.Selectinganewwidthhasnoeffect
unlessyoupowerdownandthenpowerupagain.

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10
TROUBLESHOOTING TIPS
Q.Can I patch the SOLO SL-610 after the mixer and before the power amp, just like an
FBX-901 or 1802?
A. There are two reasons why this configuration won't work. First, you will have no way to
set the clip level of the SOLO. The SOLO SL-610 is designed to function as an insert
device -- you adjust the gain trim on the channel to match the clip level of the SOLO.
Second, the SOLO has only six FBX filters, which may not provide enough gain before
feedback for your entire mix.
Q.What is the best way to use the SOLO with a guitar amplifier?
A. To use the SL-610 with a guitar amplifier, the amplifier must be equipped with either an
INSERT POINT or PREAMP OUT/POWER AMP IN jacks. Connect the amplifier's
PREAMP OUT to the SL-610 INPUT, and the SL-610 OUTPUT to the amplifier's
POWER AMP INPUT. To use the SM-610 with an amplifier, connect the SM-610
OUTPUT to the instrument amplifier LOW GAIN or HIGH LEVEL input. (Use an input
that can handle line level input levels.)
Q.The CLIP LEVEL LEDs do not light. The unit will not catch feedback. Why?
A. The unit is not in the signal path. Check the connections.
Q.Why does one of the FILTER ACTIVITY LEDs blink?
A. The last filter to be automatically updated blinks. During normal operation, the blinking
will move from filter to filter as the SOLO finds new feedback points. This gives the user
a visual confirmation that the unit is functioning properly.
Q.Why would the FBX cause a noticeable hum?
A. It may hum if the system is improperly grounded. Check for bad grounds.
Q.Why does my system sound thin and muffled?
A. Place the SOLO in BYPASS MODE. If the system still sounds thin, your problem is
probably with improper use of a graphic EQ. If the problem exists only with the SOLO in
ACTIVE mode, verify the clip level setting, reinitialize the system and lock the fixed
filters.
Q.With the SL-610 in the insert point, I hear no audio. Why?
A. Your insert point may be wired opposite to the SOLO. Try reversing the tip and ring (in
and out) of your Y-cord. If you are using a single TRS cable, you will have to reconfigure
one end of it to conform to your mixer insert point.
Q.Will the SOLO eliminate feedback in both mains and monitors?
A. Yes, but you should only set fixed filters for either mains or monitors, not both. Choose
which system is more likely to have feedback, and follow the system initializing proce-
dure for either mains or monitors. During program, the dynamic filters will control
feedback for both mains and monitors if they are in use, but only on the input channel
the SOLO is patched into.
Q.The channel I have the SOLO in seems noisy. What can I do?
A. If the noise floor is too high, you need to readjust the gain structure of that channel.
Follow the SOLO initialization instructions in this guide.

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ENGINEERING SPECIFICATIONS
Filters
Six independent digital notch filters controlled automatically from
51Hz to 17,000Hz
Filter width: 1/10 octave, typical, or 1/5-oct. selectable
Filter depth: DSP controlled, variable to -50dB
Resolution: 1/20 octave or better
Time required to find and eliminate feedback: 0.4 seconds,
typical @ 1KHz
Total number of combined filters active: User selectable,
from 1 to 6
Number of Dynamic vs. Fixed filters: User selectable
Last configuration stored in memory
Input/output - SL610 ONLY
Input Impedance: Unbalanced 10K Ohms
Output Impedance: Unbalanced 10 Ohms nominal; Maximum
load 2K Ohms
Input/Output Maximum Signal Levels: Unbalanced +14dBV
peak at clip; 11dBV RMS
I/O Connectors: 1/4" TRS; tip=input, ring=output, sleeve=ground
Bypass: True Power Off Bypass; Unbalanced to Unbalanced
Input/output - SM610 ONLY
Input: Combination 1/4" TRS & XLR-3 PIN 2 high Balanced
Input Impedance: 1 meg Ohm
Gain Range: 8 to 40dB
Maximum Input Level at lowest gain: +6dBV peak
48V phantom power jumper selectable (available on XLR input
only)
Output: 1/4"; tip high, sleeve ground
Output Impedance: Unbalanced 10 Ohms nominal; Maximum
load 2K Ohms
Output Level: Unbalanced +14dBV peak at clip nominal
Bypass: Affects FBX function only; mic preamp stays on.
EIN: -105dBm @ 150 Ohms, 20Hz-17KHz or better
PERFORMANCE*
Frequency Response: < +0.5dB, 20Hz to 17,000Hz
Signal to Noise Ratio: >85dB typical
Total Harmonic Distortion: <0.015% @ 1KHz @ any gain
setting
Dynamic Range: >92dB
POWER SUPPLY
8-20VDC @ 400 mA
MEMORY BATTERY LIFE
7 years, typical
DIMENSIONS
1-U height, 1/6-RU width; 2.78 x 1.65 x 5.5 in. (6.95 x 4.13 x 13.75
cm)
WEIGHT
9 oz. (0.26 kg)
OPTIONS
Rack tray (holds up to six units)
EXPOSURE TO EXTREMELY HIGH NOISE LEVELS MAY CAUSE A PERMANENT
HEARING LOSS. INDIVIDUALS VARY CONSIDERABLY IN SUSCEPTIBILITY TO
NOISE INDUCED HEARING LOSS, BUT NEARLY EVERYONE WILL LOSE SOME
HEARING IF EXPOSED TO SUFFICIENTLY INTENSE NOISE FOR A SUFFICIENT
TIME. THE U.S. GOVERNMENT'S OCCUPATIONAL SAFETY AND HEALTH
ADMINISTRATION (OSHA) HAS SPECIFIED THE FOLLOWING PERMISSIBLE
NOISE LEVEL EXPOSURES:
DURATION/DAY IN HOURS SOUND LEVEL IN dBA, SLOW RESPONSE
890
692
495
397
2 100
1-1/2 102
1 105
1/2 110
1/4 or less 115
ACCORDING TO OSHA, ANY EXPOSURE IN EXCESS OF THE ABOVE
PERMISSIBLE LIMITS COULD RESULT IN HEARING LOSS. EAR PLUGS OR
PROTECTORS IN THE EAR CANALS OR OVER THE EARS MUST BE WORN
WHEN OPERATING THIS DEVICE IN ORDER TO PREVENT A PERMANENT
HEARING LOSS. IF EXPOSURE IS IN EXCESS OF THE LIMITS AS SET FORTH
ABOVE, TO ENSURE AGAINST POTENTIALLY DANGEROUS EXPOSURE TO
HIGH SOUND PRESSURE LEVELS, IT IS RECOMMENDED THAT ALL PERSONS
EXPOSED TO EQUIPMENT CAPABLE OF PRODUCING HIGH SOUND
PRESSURE LEVELS SUCH AS THIS DEVICE BE PROTECTED BY HEARING
PROTECTORS WHILE THIS UNIT IS IN OPERATION.
1. Read all safety and operating instructions before using this product.
2. All safety and operating instructions should be retained for future reference.
3. Obey all cautions in the operating instructions and on the unit.
4. All operating instructions should be followed.
5. This product should not be used near water, i.e a bathtub, sink, swimming pool,
wet basement, etc.
6. This product should be located so that its position does not interfere with its
proper ventilation. It should not be placed flat against a wall or placed in a built-in
enclosure that will impede the flow of cooling air.
7. This product should not be placed near a source of heat such as a stove or
radiator.
8. Connect only to a power supply of the type marked on the unit adjacent to the
power.
9. Never break off the ground pin on the power supply cord.
10. Power supply cords should always be handled carefully. Never walk or place
equipment on power supply cords. Periodically check cords for cuts or signs of
stress, especially at the plug and the point where the cord exits the unit.
11. The power supply cord should be unplugged when the unit is to be unused for
long periods of time.
12. Care should be taken so that objects do not fall and liquids are not spilled into
the unit through the ventilation holes or any other openings.
13. This unit should be checked by a qualified service technician if:
A. The power supply cord or plug has been damaged.
B. Anything has fallen or been spilled into the unit.
C. The unit does not operate correctly.
D. The unit has been dropped or the enclosure damaged.
14. The user should not attempt to service this equipment. All service work should
be done by a qualified service technician.
CAUTIONS:
11
*TestsperformedusinganAudioPrecisionSystemOnemodel322orequal.
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)

○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○
MADEIN USA.
*FBXFeedbackExterminatorisaregisteredtrademarkofSabine,Inc.,andisthebrandnameofitslineofautomatic
feedbackcontrollers. CoveredbyU.S.PatentNo.5,245,665. Otherpatentspending.
Manufacturedby:Sabine,Inc.•13301Highway441• Alachua, FL 32615 USA•
Phone:[phone]•Fax:[phone]
www.SabineUSA.com
THISLIMITEDWARRANTYVALIDONLYWHENPURCHASEDAND
REGISTEREDINTHEUNITEDSTATESORCANADA.ALLEXPORTED
PRODUCTSARESUBJECTTOWARRANTYANDSERVICESTOBE
SPECIFIED AND PROVIDEDBYTHEAUTHORIZEDDISTRIBUTORFOR
EACHCOUNTRY.
Ces clauses de garantie ne sont vaiables qu’aux Etats-Unis et au
Canada. Dans tous les autres pays, les clauses de garantie et de
maintenance sont fixees par le distributeur national et assuree par lui
selon la legislation en vigueur.
Diese Garantie ist nur in den USA and Kanada gultig. Alle Export-
Produkte sind der Garantie und dem Service des Importeurs des
jewelligenLandesuntervorfen.
Esta garantia es valida solamente cuando el producto es comprado en
E.U. continentales o en Canada. Todos los productos que sean
comprados en el extranjero, estan sujetos a las garantias y servicio que
cada distribuidor autorizado determine y otrezca en los diterentes
paises.
ONE-YEARLIMITEDWARRANTY/REMEDY
SABINE, INC. (“SABINE”) warrants this product to be free from defects in
material and workmanship for a period of one (1) year from date of
purchase PROVlDED, however, that this limited warranty is extended
only to the original retail purchaser and is subject to the conditions,
exclusions and limitations hereinafter set forth:
CONDITIONS,EXCLUSIONSANDLIMITATIONSOFLIMITEDWARRAN-
TIES
These limited warranties shall be void and of no effect if:
a. The first purchase of the product is for the purpose of resale; or
b. Theoriginalretailpurchaseisnot made from anAUTHORIZEDSABINE
DEALER;or
c. The product has been damaged by accident or unreasonable use,
neglect, improper service or maintenance, or other causes not arising out
of defects in material or workmanship; or
d. The serial number affixed to the product is altered, defaced or
removed;or
e. The power supply grounding pin is removed or otherwise defeated. In
the event of a defect in material and/or workmanship covered by this
limited warranty, Sabine will repair the defect in material or workmanship
or replace the product, at Sabine’s option; and provided, however, that,
in any case, all costs of shipping, if necessary, are paid by you, the
purchaser.
THEWARRANTYREGISTRATIONCARDSHOULDBEACCURATELY
COMPLETED,MAILEDTOANDRECEIVEDBYSABINEWITHIN
FOURTEEN(14)DAYSFROMTHEDATEOFYOURPURCHASE.
In order to obtain service under these warranties, you must:
a. Bring the defective item to any AUTHORlZED SABlNE DEALER and
presenttherewiththe ORIGINALPROOFOF PURCHASEsuppliedtoyou
bytheAUTHORIZEDSABINE DEALER inconnectionwithyour purchase
from him of this product. If the DEALER is unable to provide the
necessary warranty service, you will be directed to the nearest other
SABINEAUTHORIZEDDEALERwhichcanprovidesuchservice.
OR
b.CallSabineforaRETURNAUTHORIZATIONNUMBERandshipthe
defective item, prepaid, to:
SABINE,INC.
13301Highway441
Alachua,FL32615
including therewith a complete, detailed description of the problem,
together with a legible copy of the original PROOF OF PURCHASE and a
complete return address. Upon Sabine’s receipt of these items:
If the defect is remedial under the limited warranties and the other terms
and conditions expressed have been complied with, Sabine will provide
the necessary warranty service to repair or replace the product and will
return it, FREIGHT COLLECT, to you, the purchaser.
Sabine’s liability to the purchaser for damages from any cause
whatsoever and regardless of the form of action, including negligence, is
limited to the actual damages up to the greater of $500.00 or an amount
equal to the purchase price of the product that caused the damage or
that is the subject of or is directly related to the cause of action. Such
purchase price will be that in effect for the specific product when the
cause of action arose. This limitation of liability will not apply to claims
for personal injury or damage to real property or tangible personal
property allegedly caused by Sabine’s negligence. Sabine does not
assume liability for personal injury or property damage arising out of or
caused by a non-Sabine alteration or attachment, nor does Sabine
assume any responsibility for damage to interconnected non-Sabine
equipment that may result from the normal functioning and maintenance
of the Sabine equipment.
UNDERNO CIRCUMSTANCESWILL SABINEBE LIABLEFOR ANY
LOSTPROFITS,LOSTSAVINGS,ANYINCIDENTALDAMAGESORANY
CONSEQUENTIALDAMAGESARISINGOUTOFTHEUSEORINABILITY
TOUSETHEPRODUCT,EVENIFSABINEHASBEENADVISEDOFTHE
POSSIBILITYOFSUCHDAMAGES.
THESELIMITEDWARRANTIESAREIN LIEU OF ANYANDALL
WARRANTIES,EXPRESSORIMPLIED,INCLUDINGBUTNOTLIMITED
TO,THEIMPLIEDWARRANTIESOFMERCHANTABILITYANDFITNESS
FORAPARTICULARUSE;PROVIDED,HOWEVER,THATIFTHEOTHER
TERMSANDCONDITIONSNECESSARYTOTHEEXISTENCEOFTHE
EXPRESSLIMITEDWARRANTIES,ASHEREINABOVESTATED,HAVE
BEENCOMPLIEDWITH,IMPLIEDWARRANTIESARENOTDISCLAIMED
DURINGTHEAPPLICABLEONE-YEARPERIODFROMDATEOF
PURCHASEOFTHISPRODUCT.
SOMESTATESDO NOTALLOWLIMITATIONON HOWLONGAN
IMPLIEDWARRANTYLASTS,ORTHEEXCLUSIONORLIMITATIONOF
INCIDENTALORCONSEQUENTIALDAMAGES,SOTHEABOVE
LIMITATIONSOREXCLUSIONSMAYNOTAPPLYTOYOU. THESE
LIMITEDWARRANTIESGIVEYOUSPECIFICLEGALRIGHTS,ANDYOU
MAYALSOHAVEOTHERRIGHTSWHICHMAYVARYFROMSTATETO
STATE.
THESELIMITEDWARRANTIESARETHEONLYEXPRESS
WARRANTIESONTHISPRODUCT,ANDNOOTHERSTATEMENT,
REPRESENTATION,WARRANTYORAGREEMENTBYANYPERSON
SHALLBEVALIDORBINDINGUPONSABINE.
In the event of any modification or disclaimer of express or
implied warranties, or any limitation of remedies, contained herein
conflicts with applicable law, then such modification, disclaimer or
limitation, as the case may be, shall be deemed to be modified to the
extent necessary to comply with such law.
Your remedies for breach of these warranties are limited to those
remedies provided herein, and Sabine gives this limited warranty only
with respect to equipment purchased in the United States of America.
INSTRUCTIONS-WARRANTYREGISTRATIONCARD
1.MailthecompletedWARRANTYREGISTRATIONCARDto:
SABINE,INC.
13301Highway441
Alachua,FL32615
a. Keep the PROOF OF PURCHASE. In the event warranty service is
required during the warranty period, you will need this document. There
will be no identification card issued by Sabine, Inc.
2.IMPORTANCEOFWARRANTYREGISTRATIONCARDSAND
NOTIFICATIONOFCHANGESOFADDRESS:
a.CompletionandmailingofWARRANTYREGISTRATIONCARDS -
Should notification become necessary for any condition that may require
correction, the REGISTRATION CARD will help ensure that you are
contacted and properly notified.
b. Notice of address changes - If you move from the address shown on
theWARRANTYREGISTRATIONCARD,youshouldnotifySabineofthe
change of address so as to facilitate your receipt of any bulletins or
other forms of notification which may become necessary in connection
with any condition that may require dissemination of information or
correction.
3. You may contact Sabine directly by telephoning [phone].
4. Please have the Sabine product name and serial number available
whencommunicatingwithSabineCustomerService.
ONE-YEAR LIMITED WARRANTY:
FBX-SOLO-610-072500.p65