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a/d/s/ P450 Owner's Manual

Analog and digital systems
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P4 5 0 /P6 5 0 /P8 5 0
owners manual
analog and digital systems
©2001 analog and digital systems, inc.
300 wildwood avenue, woburn, massachusetts 01801
781.729.1140
www.adst.com
00-3009 REV A

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  • Page 1 P4 5 0 /P6 5 0 /P8 5 0 owners manual analog and digital systems ©2001 analog and digital systems, inc. 300 wildwood avenue, woburn, massachusetts 01801 781.729.1140 www.adst.com 00-3009 REV A...

  • Page 2: Table Of Contents

    introduction about this manual features of your PowerPlateTM warning and tips system planning signal sources system configurations mounting locations installation controls and connections multi-crossTM crossover and configurations tuning troubleshooting specifications warranty information introduction Although it may be hard to remember, back in the 1970’s, car audio as we now know it didn’t really exist.

  • Page 3: Specifications

    47 kW recommended fuse type P850 2 X 40 ATC P650 2 X 30 ATC P450 1 X 40 ATC crossover section ch 1 & 2 high-pass ch 3 & 4 high-pass & low-pass ch 5 & 6 high-pass &...

  • Page 4: Mounting Locations

    Warnings and tips Always disconnect the battery ground wire before doing any work on your vehicle. Reconnect the cable only after the installation is complete and the wiring has been checked to make sure that there are no problems. If your radio features a code type security system, be sure you know the code before disconnecting the battery! Your a/d/s/ PowerPlate should be installed in 12V negative ground vehicles only.

  • Page 5: System Configurations

    symptom possible cause action to take no output low or no remote turn-on input check remote turn-on voltage output at amplifier and correct as needed fuse blown check power wire integrity and reversed polarity, repair as needed and replace fuse power wires not connected check power wire and ground connections and repair or...
  • Page 6 P450 system diagrams System 1 - P450 used in 4-channel mode with front and rear full range speakers. System 2 - P450 used in 2-channel bridged mode with full range speakers.
  • Page 7 System 3 - Two P450’s; one is used to drive front tweeters and midrange drivers, the second is used in 2-channel bridged mode for subwoofers. Subwoofer level can be controlled by using the source’s front output for the first P450 and the rear output for the second P450.
  • Page 8 System 1 – P650 used in 6-channel mode. Channels 1/2 are high-passed for front speakers. Chan- nels 3/4 are high-passed for rear speakers. Channels 5/6 are low-passed for subwoofers. Although shown with 4-channels of input, the source unit can be either 2- or 4-channel. System 2 –...
  • Page 9 adjusting input sensitivity The input sensitivity setting is important to ensure proper performance, low noise levels, and maxi- mum system reliability. As a general rule, components at the "front end" of the system should be set as high as possible with the input sensitivity of the amplifier set as low as possible while still pro- viding adequate volume levels.
  • Page 10 3/4 crossover. If the 1/2 crossover switch is in the 3/4 posi- tion the 1/2 level will also be controlled. You can use P450 as a bridged two channel subwooofer amplifier this way. On the P650 the AC502 will control the level of the low-pass output of the 5/6 crossover.
  • Page 11 xover control 5/6 (P650) – The crossover selection for channels 5&6 has three possibilities: When the switch is in the left position, the crossover section of the amplifier is bypassed. Channel 5&6 output is full range. When the switch is the center position, channels 5&6 are filtered through a 12dB per octave high-pass crossover that is infinitely variable from 45Hz to 5,000Hz.

  • Page 12: Installation

    1. Disconnect the battery ground cable. Reconnect the ground cable only after the installation is complete and the wiring has been checked to make sure that there are no problems. If your radio features a code type security system, be sure you know the code before disconnecting the battery! 2.
  • Page 13 internal signal routing, cont’d Channels 5/6 input switch (P650 and P850) – selects input from three possibili- ties. When the switch is in the left position, channels 5/6 receive input from the 5/6 DIN inputs. When the switch is in the center position, channels 5/6 receive input from channels 1/2 RCA input.

  • Page 14: Internal Signal Routing

    signal sources Due to the wide input level adjustment range, all a/d/s/ PowerPlates conventional preamplifier drive signal or the amplified signal from a powered source unit. This makes the PowerPlate perfect for upgrading an OEM (Original Equipment Manufacturer) stereo system while retaining the factory installed radio. Because of the high impedance of the a/d/s/ input stage, the factory radio drives an easy load.

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