SABINE FBX SOLO SL-610 Operating Manual page 6

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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.