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18 - English
Care and Maintenance
Caring for Your Product
Cleaning
• Clean the product enclosures using only a soft, dry cloth.
• Do not use any solvents, chemicals, or cleaning solutions containing alcohol, ammonia, or abrasives.
• Do not use any sprays near the product or allow liquids to spill into any openings.
• If necessary, you may carefully vacuum the grille of the loudspeaker array.
Getting Service
For additional help in solving problems, contact the Bose Professional Sound Division at (877) 335-2673 or visit our
support area online at www.Bose.com/livesound.
Troubleshooting
If you experience problems while using this product, try the following solutions. The recommended troubleshooting
tools include a spare AC power cord and extra XLR and 1/4” phone plug cables.
Problem What to do
Loudspeaker is plugged in,
power switch is on, but power
LED is off.
• Make sure the power cord is fully engaged into both the F1 Model 812 Loudspeaker and the AC
outlet.
• Make sure you have power at the AC outlet. Try operating a lamp or other equipment from the
same AC outlet.
• Try a different power cord.
Power LED is on (green),but
no sound.
• Make sure the VOLUME control is turned up.
• Make sure volume control is turned up on your instrument.
• Make sure your instrument or audio source is plugged into the appropriate input connector.
• If the F1 Model 812 Loudspeaker is receiving input from the F1 Subwoofer, make sure the
subwoofer is turned on.
Instrument or audio source
sounds distorted.
• Lower the volume of the connected audio source.
• If you are connected to an external mixing console, make sure input gain to the mixing console
input channel is not clipping.
• Reduce the output of the mixing console.
Microphone is encountering
feedback.
• Reduce the input gain on the mixing console.
• Try positioning the microphone so it nearly touches your lips.
• Try a different microphone.
• Use the tone controls on the mixing console to reduce the offending frequencies.
• Increase the distance from the loudspeaker to the microphone.
• If using a vocal effects processor, make sure it is not contributing to the feedback.
Poor Bass Response • If using the F1 Model 812 Loudspeaker without the F1 Subwoofer, make sure the EQ switch is
set to FULL RANGE.
• If using the F1 Model 812 Loudspeaker with the F1 Subwoofer, check to see if the POLARITY
switch is in NORMAL mode. If there is a fair amount distance between the F1 Subwoofer and
the F1 Model 812 Loudspeaker, setting the POLARITY switch to REV may improve bass.
• If using two F1 Subwoofers, make sure that the POLARITY switch is in the same position on
each subwoofer.
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