Alesis Matica 500, Matica 900 manual Amplifier Operations

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Installations

CHAPTER 3

AMPLIFIER OPERATIONS

Once all gain adjustments are made and proper operation is confirmed, no special considerations are required for Matica amplifiers. Aside from the front panel gain controls, there are no user adjustments or routine maintenance operations necessary (or available).

When powering a system on or off, it is usually advisable to turn on the power amplifiers last and to turn them off first, so that any turn on or turn off transient signals generated by other equipment in the system are not amplified and sent to the loudspeakers. However, Matica amplifiersÕ protection relays have a 4 to 5 second turn-on delay which keeps the loudspeakers disconnected while the system is powering up. These relays also disconnect the load very quickly when power is removed from the amplifiers, thus minimizing the chance that turn-off transients originating elsewhere in the system will be sent to the speakers.

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Matica 500/900 Reference Manual

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Contents Alesis Contents Matica 500/900 Reference Manual About Alesis Maticaª Amplifiers IntroductionWhy Another Power Amplifier? Page Installations Physical InstallationUnpacking and Inspection Electrical Installation Audio Installation Input Wiring ConnectionPhone Jack Balanced wiring of a 1/4Ó 6.3 mm three-wire phone plug Audio Installation Output WiringLoad Impedance SolidPage System Setup and Testing Installations Matica 500/900 Reference Manual Amplifier Operations Installations Matica 500/900 Reference Manual Weak or Distorted Signal Case of TroubleNo Sound Channel B Shows Heavy Hum and/or NoiseThin or Muffled Sound Audio Cuts In and OutReference Preliminary Amplifier SpecificationsRear Panel Dimensions Net Weight Chassis Construction
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