Mackie S515 Owners Manual - Page 9

Owner's Manual Appendix A: Service Information If you think your Mackie product has a problem, please check out the following troubleshooting tips and do your best to confirm the problem. Visit the Support section of our website (www.mackie.com) to get some ideas or contact our technical support heroes. You may find the answer to the problem without having to send your Mackie product away. Troubleshooting No Sound • Are the level controls on the mixer or amplifier turned all the way down? Follow the procedures in "Getting Started" section on page 4 to verify that all of the volume controls in the system are properly adjusted. • Is the signal source working (and making union scale)? • Are all the connections good and sound? Make sure all of the connecting cables are in good repair and securely connected at both ends. One side is way louder than the other! • Are the level controls set the same for both channels on the mixer and amplifier? • Check the pan control on the signal source. It may be turned too far to one side. If you're using a stereo signal source, it may be delivering an out-of-balance stereo signal. • Try switching sides: Turn off the amp, swap the speaker cables at the amp and turn the amp back on. If the same side is still louder, the problem is with your speaker cabling or the loudspeakers. If the other side is louder now, the problem is with the mixer, the loudspeaker processor, the amp, or the line-level cabling. Poor bass performance • Check the polarity of the connections between the amplifier and the loudspeakers. You may have your positive and negative connections reversed at one end of one cable. Bad Sound • Is the input connector plugged completely into the jack? Make sure it is plugged all the way in. • Is it loud and distorted? Reduce the signal level at the mixer. • If possible, listen to the signal source with headphones plugged into the preamp stage. If it sounds bad there, it's not the loudspeaker. • Too much bass or not enough bass? Move around the room and see if the bass response changes. It's possible your listening position coincides with a room mode where the low frequencies either become exaggerated or nulled. If so, try moving the loudspeakers to a different position, or moving your listening position. Care and Maintenance Your Mackie loudspeakers will provide many years of reliable service if you follow these simple guidelines: • Avoid exposing the loudspeakers to moisture. If they are set up outdoors, be sure they are under cover if you expect rain. • Avoid exposure to extreme cold (below freezing temperatures). If you must operate the loudspeakers in a cold environment, warm up the voice coils slowly by sending a low-level signal through them for about 15 minutes prior to high-power operation. • Use a damp cloth with a mild soap solution to clean the cabinets. Avoid getting moisture into any of the openings of the cabinet, particularly where the drivers are located. Owner's Manual 9