User manual ART MX225

[. . . ] Each output zone features independent level control from inputs 1 and 2, stereo/mono selector with mono indicator, LED level metering, and left and right balanced line level zone outputs. The built in power supply and single high 19" rack mount format allows for easy installation and reliable operation. The use of multiple power amplifiers, each driving one or more speakers, or multiple powered speakers is now commonplace in most distributed audio systems. Whether the installation is a club, a hall, a restaurant, a church, an arena, an office, a recreational facility, or even a portable PA with distributed speakers, systems like this offer the potential to balance the audio level throughout the coverage area. [. . . ] Alternately a mono signal source can be connected to either L or R input. Repeat the process with Line 2 In source for an additional mixer or other audio source. c) Using balanced XLR cables connect the Zone Out connectors to the inputs of the appropriate power amplifiers and/or powered speakers. d) In many situations the Stereo/Mono selector would be in the Mono position. Firstly, stereo separation works well in the home where the listener can be situated more exactly between the speakers to hear each one equally. But away from that environment in a club, restaurant, office, rec hall, etc, listeners often find themselves closer to one speaker than the other. Stereo separation can cause a situation where you primarily hear just part of the program e. g. , guitar but no keyboard or vice-versa. With the system in Mono mode, all of the program music comes out all of the speakers. Secondly, if you connect a mono source to one of the Left or Right Source Input connectors then switch one or more zones into Stereo, that source will only come out the amp/speakers connected to the Left or Right Zone outputs. People not situated close to those speakers may not be able to hear that source at all. e) Adjust the Source level controls to produce the desired volume in each area. If a CLIP indicator lights, reduce either that Zones level control, or the output of the signal source to prevent distortion. f) The LED level indicators in each Zone show the relative signal level for that Zone. g) The Source Indicator 1 and 2 lights show signal activity of each source. WARNINGS All operating instructions should be read before using this equipment. To prevent the risk of electrical shock, do not remove the cover or the back. There are no user-serviceable parts inside. Please refer servicing to a qualified service technician. Do not expose this unit to rain or moisture or to heat sources such as radiators, stoves, or other items that generate excessive heat. This unit should be cleaned only with a damp cloth. When moving this equipment, it should be placed in its original carton and packing, to reduce the risk of damage in transit. WARRANTY INFORMATION Limited Warranty Applied Research and Technology will provide warranty and service for this unit in accordance with the following warrants: Applied Research and Technology, (ART) warrants to the original purchaser that this product and the components thereof will be free from defects in workmanship and materials for a period of three years from the date of purchase. [. . . ] 2) If you believe the ART unit is at fault, go to www. artproaudio. com. You may contact Customer Service for more assistance, or directly request a Return Authorization for service in the "resources" area of the website. 3) If you are returning the unit for service, pack the unit in its original carton or a reasonable substitute. The original packaging may not be suitable as a shipping carton, so consider putting the packaged unit in another box for shipping. [. . . ]