end of one cable, causing one loudspeaker to be out-of-phase.
Poor sound
� Is it loud and distorted? Make sure that you�re not overdriving a stage in the signal chain. Verify that all level controls are set properly. � Is the input connector plugged completely into the jack? Be sure all connections are secure. It�s a good idea to periodically clean all electrical connections with a non-lubricating electrical contact cleaner.
If your SR1530 needs service, please follow these instructions: 1. Review the preceding troubleshooting suggestions. Please. 2. Call Tech Support at 1-800-258-6883, 7am to 5pm PST, to explain the problem in detail. They will ask you all sorts of impertinent questions in the hope of sorting out the problem. If it appears that the SR1530 needs repair, request an RA (Return Authorization) number. Have your loudspeaker�s serial number ready. You must have an RA number before you can obtain service at the factory or an authorized service center. 3. Keep this user�s manual. We don�t need it to repair the loudspeaker. 4. Pack the loudspeaker in its original packaging, including protective wrap, endcaps, and box. This is very important. When you call for the RA number, please let Tech Support know if you need new packaging. Mackie is not responsible for any damage that occurs due to non-factory packaging. 5. Include a legible note stating your name, shipping address (no P.O. boxes), daytime phone number, RA number, and a detailed description of the problem, including how we can duplicate it. 6. Write the RA number in BIG PRINT on top of the box. 7. Ship the loudspeaker to us. We recommend United Parcel Service (UPS). We suggest insurance for all forms of cartage. Ship to this address: Mackie Designs SERVICE DEPARTMENT 16140 Wood-Red Rd. NE, STE 5 Woodinville, WA 98072 8. We�ll try to fix the loudspeaker within three business days. Ask Tech Support for the latest turnaround times when you call for your RA number. We normally send everything back prepaid using UPS BLUE (Second Day Air). However, if you rush your loudspeaker to us by Next Day Air, we�ll treat it in kind by shipping it back to you UPS RED (Next Day Air). This paragraph does not necessarily apply to nonwarranty service.
Noise
� Make sure all connections to the active loudspeakers are good and sound. � Make sure none of the signal cables are routed near AC cables, power transformers, or other EMI-inducing devices. � Is there a light dimmer or other SCRbased device on the same AC circuit as the SR1530? Use an AC line filter or plug the SR1530 into a different AC circuit.
Hum
� Try disconnecting the cable connected to the MAIN INPUT jack. If the noise disappears, it could be a �ground loop,� rather than a problem with the SR1530. Try some of the following troubleshooting ideas: � Use balanced connections throughout your system for the best noise rejection. � Whenever possible, plug all the audio equipment�s linecords into outlets which share a common ground. The distance between the outlets and the common ground should be as short as possible.
REPAIR
Service for the SR1530 is available only from one of our authorized domestic service stations or at the factory, located in sunny Woodinville, Washington. Service outside the United States can be obtained through local dealers or distributors.
