Specifications

LIT-FBX1220-1224-OP-EN-080208.pmd - ks
5
© 2008 Sabine, Inc.
4.2. How To Operate your FBX1220 / FBX2420
Placeequipment&makeconnections.
a. Patch your FBX1220 or FBX2420 into system and make all connec-
tions (refer to pages 2 and 3 for connection options).
b. Place speakers and microphones in performance positions.
c. Set Input and Output levels on FBX back panel (see Section 5.1.1.
for details). Start with all buttons pushed in.
d. If you are using a graphic EQ, adjust only for the desired tonal quali-
ties, but DO NOT NOTCH FOR FEEDBACK.
e. Adjust the level for each mixer channel, and set the sound system’s
master volume to minimum.
Push SETUPbutton until all LEDs stop ashing and the
SETUPlight ashes on its own.
Setup mode clears all Fixed &
Dynamic lters. Do not use Setup mode during your performance.
Slowlyraisethe gain on the mixer or amp until the FBX
eliminatestherstfewfeedbacktones.
DO NOT TALK INTO THE MICS. The FBX will quickly begin to nd and remove
feedback. The rst Fixed lter set will be heard as a quiet feedback chirp and
shown as an amber LED. As you slowly raise the gain, more feedback chirps
will be heard, and more amber LEDs will light.
a.Ifyouareusingstationarymicrophones:
Continueraising the gainuntil all lter LEDscycle back andforth in
sequence. This is your indication that the FBX is exiting setup mode.
IMPORTANT: Reduce gain slightly. You are now in READY (perfor-
mance) mode, with the Fixed lters locked and the blue Ready light
on. Begin the show!
b.Ifyouareusingwirelessmicrophones:
You can get more gain in a variety of locations. To do this, lower the system
gain after the rst few lters are set, then move the microphone to another area
where it will be used and raise the gain slowly as before. Repeat this process
while you continueraisingthegainuntilalllterLEDscyclebackandforth
insequence. This is your indication that the FBX is exiting setup mode.
IMPORTANT: Reduce gain slightly. You are now in READY (perfor-
mance) mode, with the Fixed lters locked and the blue Ready light
on. Begin the show!
c.YoumayquitSetupmodeatanytime prior to its automatic exit by simply
pressing the READY button (blue READY LED will ash). Press it again at
any time to lock the Fixed lters (blue READY LED stays on). Whether locked
or unlocked, pressing the READY button before Setup mode automatically
nishes will enable ready-to-operate status, but with fewer xed FBX lters
in place. Dynamic FBX lters are still available to eliminate new feedback,
regardless of how or when SETUP mode is exited. Begin the show!
IfyoudonothavetimetouseSetupMode:
Push the READY button -- the blue LED ashes indicating the xed lters are
unlocked. Begin your show, and once several xed lters are set we recom-
mend you lock them by pushing ready again (blue LED stays lit). You won't
get all the potential benet of increased gain before feedback, but you will get
automatic feedback control during your performance.
1
3
2
Followtheseprocedurestogetmaximumgainbeforefeedback
Fixed&DynamicFilters
Front panel lter LEDs
lighting as gain is raised
and Fixed lters are set.
a. Set up one FBX channel at a
time.
b. DO NOT TALK INTO YOUR SYS-
TEM while in Setup mode.
c. See Section 5.2. FBX Filter Con-
trol for information on:
• Changing the number of Fixed
vs. Dynamic lters
• Selecting and mixing 1/10- &
1/5-octave lters
• Enabling and setting the Dy-
Power Tips
See Section 4.1.3. for details on
the differences between Fixed and
Dynamic FBX lters, and Section
5.2.2. for instructions on changing
the balance of Fixed versus Dy-
namic lters.
4
Fixed, Locked RED Steady BLUE
Fixed, Unlocked AMBER Flashing
BLUE
FILTER COLOR KEY
FBX Filters LEDs Ready LED