Audioaccess MA-362 Hardware Installation

Audioaccess MA-362 Hardware Installation

Twelve channel amplfier
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MA-362
Twelve Channel
Amplfier
Hardware Installation
9/2002, rev 1.0

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Summary of Contents for Audioaccess MA-362

  • Page 1 MA-362 Twelve Channel Amplfier Hardware Installation 9/2002, rev 1.0...
  • Page 2: Table Of Contents

    Contents Page Important Safety Precautions ___________________________________ ii Unpacking and Inspection _____________________________________ v Typographical Conventions ____________________________________ v Technical Services____________________________________________ v MA-362 Product Description ____________________________________________ 1.1 Overview ________________________________________________ 1.1 Features _________________________________________________ 1.2 Rear Panel _______________________________________________ 1.3 Front Panel ______________________________________________ 1.4 Design Considerations & Physical Installation ________________________ 2.1...
  • Page 3 This publication is designed to provide accurate and authoritative information about the subject matter covered. Audioaccess reserves the right to make changes without further notices to any products or software herein to improve reliability, function or design.
  • Page 4: Unpacking And Inspection

    Unpacking and Inspection Use caution when unpacking the MA-362 and follow these procedures: ◊ Inspect the shipping carton(s) for exterior damage before opening them. If any damage is discovered, notify your freight agent and Audioaccess immediately. To open the shipping box, cut the tape and carefully remove the staples.
  • Page 5 (this page is intentionally blank) vi vi...
  • Page 6: Ma-362 Product Description

    Power to Spare With a power rating of 50 Watts per channel at 8 Ohms from 20Hz to 20kHz with less than .05% THD, the MA-362 will drive virtually any appropriate loudspeaker to room filling volume. Power into 4 Ohms is 75 Watts per channel and bridged operation provides an impressive 150 Watts per channel into 8 Ohms.
  • Page 7: Features

    MA-362 PRODUCT DESCRIPTION Installation Flexibility Ease of installation, a hallmark of all Audioaccess products is maintained in the new MA-362. An external speaker termination board allows advance termination of loudspeakers. At final installation, simply plug the speaker termination board onto the rear panel of the amplifier.
  • Page 8: Rear Panel

    MA-362 PRODUCT DESCRIPTION Rear Panel ¡ A UDIO NPUTS Six stereo RCA connectors (one pair per zone). ™ V OLTAGE RIGGERS 2-position, screw terminal Euro-Style connector (one voltage trigger per zone.) £ I NPUT ELECTOR Switch to set channel to be local or linked to previous zone output on zones 2 through 6.
  • Page 9: Front Panel

    Thermal Protect FLASHING RED 1 or more channels has become inoperative YELLOW ™ AC P (Push button switch) OWER WITCH When the switch is depressed (in) power is supplied to the MA-362. When the switch is out, the unit is off.
  • Page 10: Design Considerations & Physical Installation

    Trigger Settings The MA-362 channels can be configured for a variety of sources. Each zone (L and R channel) of the amp can be triggered O in three different ways as listed below.
  • Page 11: Channel Output

    DESIGN CONSIDERATIONS & PHYSICAL INSTALLATION Channel Output The MA-362 channels can be configured in different ways to allow for use in various installation applications. In most cases the channels would be run in stereo, but should the need arise, the MA-362 can be configured for MONO output to work in an area where the speakers are spread apart, or the channels can be bridged for more power output.
  • Page 12: Channel Configuration

    Section 3 Channel Configuration Each channel of the MA-362 can be configured for different signal feeds, turn on source and output. Read through the following information before configuring the amplifier. Input Signal DESCRIPTION SWITCH SETTING MODE Input Local Channel is fed directly from the inputs for that Zone.
  • Page 13: Local Inputs

    CHANNEL CONFIGURATION Local Inputs 1. Connect the left and right input signals to the Left and Right RCA jacks of a MA-362 Zone. 2. Set Input Link switch to L OCAL 3. Set M to appropriate setting based on “Output Mode” as described sarting on page 3.4 in this section.
  • Page 14: Multiple Linked Inputs (Bussing)

    CHANNEL CONFIGURATION INPUT LINK OPERATION - BUSSING (Stereo Mode) Zone Zone Zone Input Level Input Level Input Level Input Input Input Link Mode Trigger Link Mode Trigger Link Mode Trigger Stereo Stereo Stereo Link Link Link Link Link Link Mono Mono Mono Signal...
  • Page 15: Output Mode

    Stereo Mono Bridge/R Bridge/L Stereo Operation 1. Connect the left and right input signals to the left and right RCA jacks of a MA-362 Zone. 2. Set I to L (Note: Zone 1 always uses the local input). NPUT OCAL 3.
  • Page 16: Mono Operation

    Signal Sensing 12 Volt Trigger Mono Operation 1. Connect the left and right input signals to the left and right RCA jacks of a MA-362 Zone. 2. Set I to L (Note: Zone 1 always uses the local input). NPUT OCAL 3.
  • Page 17: Bridged Operation

    Bridged Operation Method One You must use Method One if you are bussing zones. 1. Connect the left and right input signals to the Left and Right RCA jacks of an MA-362 Zone. 2. Set I to L NPUT OCAL 3.
  • Page 18: Method Two

    CHANNEL CONFIGURATION Bridged Operation Method Two 1. Connect the left input signal to the Left RCA jack of a MA-362 Zone. 2. Set I to L NPUT OCAL 3. Set M to B RIDGE Set T to appropriate trigger type as described in “Triggering”...
  • Page 19: Trigger Source

    CHANNEL CONFIGURATION Trigger Source 12V Trigger 1. Connect RCA jacks and set the I switch to appropriate setting NPUT IGNAL based on “Input Signal” as described starting on page 3.1 in this section. 2. Set the O switch and connect speakers appropriately based on UTPUT “Output Mode”...
  • Page 20: Troubleshooting

    One or more channels are active — refer to RED state above. FLASHING THERMAL PROTECT — Unit is in protect mode. Remove the AC power to the MA-362 and check all wiring for shorts. YELLOW One or more channels has become inoperative — contact Audioaccess Technical Services.
  • Page 21 (this page is intentionally blank)
  • Page 22 Section 5 Technical Specifications Specifications Note: Due to constant research, specifications are subject to change without notice. Electrical Number of Channels 12, configured as 6 left/right pairs (zones) Power Output (Unbridged) 50W @ 8Ω, 75W @4Ω, 20 – 20k Hz, All Channels Driven Power Output (Bridged) 150W @ 8Ω, 20 –...
  • Page 23 (this page is intentionally blank)
  • Page 24 Appendix A Speaker Wiring Stereo / Mono Speaker Connection Audioaccess–TI501 Left Speaker Terminal Right Speaker Terminal Bridged Speaker Connection Audioaccess–TI501 Left Speaker Terminal Right Speaker Terminal...
  • Page 25 APPENDIX A Series Speaker Connection Audioaccess–TI501 Speaker 2 Terminal Speaker 1 Terminal Parallel Speaker Connection Audioaccess–TI501 Speaker 1 Terminal Speaker 2 Terminal...
  • Page 26 This warranty gives you specific rights and you may also have other rights which vary from state to state. UDIOACCESS 2081 South Main Street/P.O. Box 781, Middletown, Connecticut 06457-0781 USA (860) 346-0896 FAX (860) 347-6251 http://www.audioaccess.com...
  • Page 27 Harman International a Harman International company © 9/2002, rev 1.0 9/2002 Audioaccess. All rights reserved. Printed in U.S.A.

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