Audio Authority Car Audio System installation manual Ampifier Bypass, Speakers

Page 14

Ampifier Bypass

The source signal is supplied when no products in an amp group are selected. For the bypass option, remem- ber to leave the fourth position open on the last 942 module in each Amp Product Group. That position is reserved for the bypass connection, so no amp can be connected there (see pp. 6, 40).

There are many other hookup and demonstration possibilities for amplifiers, many of which are shown in this manual. Please call us at 800-322-8346 if you have questions about the type of switching modules you need, or with any other questions.

Speakers

The final component(s) in the signal path are the speakers. Each speaker Product Group is powered by the selected amplifier in its corresponding group. So, front type speakers are powered by front amps, rear type speakers by rear amps, etc. The Access System’s architecture was designed for a maximum of 16 unique speaker groups, with a capacity within each group for 99 pairs of speakers.

Possible Speaker/Amplifier Product Groups

Front Speakers

Tweeters

Rear Speakers

Mid Range Speakers

Subwoofers

Subwoofers

Figure 11. Some suggestions for group arrangements.

Sixteen unique speaker groups are possible.

Speakers use the special 932 switching module. Each 932 switches eight speakers in one channel (8 left or 8 right speakers) so two Model 932s are required for each eight pairs of speakers. The 932’s AutoDamping™ circuit shorts unselected speakers to ground so that they do not resonate sympathetically with the selected speaker pair.

In very small systems, it could be more cost effective to use the Model 940EZ high-level switching module for speakers. Each 940EZ module handles 4 pairs of speakers. Unselected speakers are NOT shorted to ground (AutoDamping) when the 940EZ is used, but that usually isn’t an issue when there are only a few speaker pairs in the system.

Figure 11. Model 932

932

932

Figure 12. Model 940EZ.

Speaker Selectors. This

This module could switch

 

 

configuration could switch

 

 

four speaker pairs, but does

eight speaker pairs.

 

 

not have the AutoDamping

 

 

 

Circuit.

940

14

Image 14
Contents Demonstration Network Car Audio Page Contents Introduction What is the Access System? Definition of TermsProduct Select Buses HOW the Access System WorksSelecting Products in the Access System 922Control Panels Full-Featured Control Panel Access System ComponentsAccess User Interfaces Features includeSwitching Modules System Specific Components System ModuleExpander Modules DC Distribution Modules Head Units Choosing the Correct Switching ModulesProduct Groups 910Amplifier Product Groups Amp SharingAmpifier Bypass SpeakersPreparation Begin InstallationAddress and Other Settings Number the Product GroupsSources, EQs and Amplifiers Speakers How to Use These TablesDetermine the Module ID settings Programming Switch Settings S M B T D Set the Address SwitchesSet the Programming Switches SilenTouch and Model Set the Left-Right SwitchTimeout Minutes and Model Speaker LimitDetermine Other Module Locations Installing the System HardwareDesignate the Switching Module Locations Mount the ModulesBlue Install Speaker Bus Low-Level BusesEQ and Amplifier Bypass Low-Level Bus Illustration.Low-LevelInstall the DC Power Distribution Cables Choosing the Power Mode for Your Display Power Supply VentilationSetting the Parallel Speaker Limits Install the RF Antenna Distribution System Check Your Work to This PointObserve correct polarity for all bus connections Installing a Control Panel Rear view of the 902 Control PanelControl Panel Expanders Control Panel Cutout SizesInstalling Product Select Buttons and Product Indicators Be careful to maintain PSB Cable polarity at both endsTheftAlert System Module AccessoriesRemote Power Switch 902 Testing Network FunctionRemote System Reset Page Install the First Products Display Component HookupPage Test Your Initial Product Installation Troubleshooting Noise Problems Connect the BatteryInstall the Remaining Products Test Product SelectionB System Comparison Selecting Additional Speaker Pairs with PSBsDeselecting Products with PSBs TheftAlert ProtectionSystem, DC and Signal Bus Wiring Diagrams Product to Switch Module Wiring DiagramsSystem Bus Speaker Bus DC Bus Amplifier Bypass Example SystemAddressing Low-Level Bus System Bus AddressingAmp Bypass EQ Bypass AMP Shared System 942 916X 932 Example of split Model 910D Setup Ch. High-Level 2-Ch Low-Level Head Unit915X DC Channel Signal Processor Or EqualizerPower Expander EQ Bypass NoteChannel Setup for 980EZ Model 980 System Module / 2- and 6-Channel Hookup916X Amplifiers / 2-Channel HookupChannel Amplifier Amp Bypass NoteAmplifiers / 4-Channel Hookup BAT+Shared Amplifier Hookup 942Left/Right and Mono Speaker Hookup Left Speaker RightWarranty Service Procedures Access WarrantyLimited Warranty Out of Warranty ServiceIndex