Bose F1 Model 812 Loudspeaker With F1 Subwoofer Multilingual Owners Guide - Page 18

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. 18 - English