a/d/s/ P850, P650, P450 owner manual Table of contents, Introduction, Warranty

table of contents

introduction	1
about this manual	2
features of your PowerPlateTM	2
warning and tips	3
system planning	4
signal sources	4
system configurations	6
mounting locations	11
installation	12
controls and connections	13
multi-crossTM crossover and configurations	16
tuning	17
troubleshooting	19
specifications	21
warranty information	22

introduction

Although it may be hard to remember, back in the 1970’s, car audio as we now know it didn’t really exist. Sure, music lovers could buy a cassette or 8-track tape deck and some 6" x 9" three-way speakers. Advanced stereo buffs might even add a "power-booster" to increase output to as much as 12 watts RMS! But none of this really delivered the power to cut through road noise with sound quality that compared with the best home audio. Not until 1979 that is, when a/d/s/ introduced the revolutionary PowerPlateTM P100 amplifier and 300i 2-way plate loudspeakers. Aesthetically, the P100 introduced the low profile design which has been an a/d/s/ trademark to this day. Technologically, the P100 combined a high efficiency switching power supply with a state-of-the-art, discrete high-current stereo power amplifier. For the first time, a car audio system existed with the musical integrity and dynamic range that made you want to take long drives to nowhere, just to listen to the music. High quality car audio was born, and the original a/d/s/ PowerPlateTM P100 made it happen.

The latest improvements to the PowerPlate TM line-up include increased heatsink area to facilitate higher power output, and fully balanced high-level inputs compatible with any source. The amplifier you have purchased is an enhancement of the respected P-series multichannel amplifiers. In this version, we have improved upon the already acclaimed sound quality by addressing internal details, and upgrading selected components to incorporate the latest technology which may not have been available when the P-series was originally designed. Selected low-noise, high-speed Burr-Brown op amps are used in critical circuits. Class-A biasing is used throughout the voltage-gain and active crossover stages. Numerous modifications and "tweaks" were also performed which improve the power supply dynamics and reduce noise. These changes improve transparency and dynamic linearity, resulting in a smoother and more detailed top-end, tighter bass, more explosive dynamic contrasts, and virtually holographic imaging. Left intact are the P-series unequalled flexibility, high efficiency and superb reliability. These, along with multi-channel design, are fundamental in the a/d/s/ approach to systems engineering, which makes achieving true high fidelity reproduction simple and predictable in any installation.

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warranty

There are two things you must do to ensure trouble free service in the event you need warranty repairs.

1.Keep your original sales receipt in a safe place. A copy of the receipt will be required to obtain warranty service.

2.Be sure your retail dealer has written the date, model number and serial number (if applicable) of the product on the receipt. To give yourself an extra measure of protection, make a separate record of the information about your purchase and keep it in a safe place. In the event you misplace the sales receipt, your dealer may be able to give you a copy.

Take a moment now to read the terms of your warranty. Check to be sure your sales receipt is dated and has the product model number and serial number (if applicable) on it. Then put it away in a safe place.

When shipping a Product in for service:

•Enclose a copy of your original sales receipt that has the date, product model number and serial number (if applicable) written on it.

•Always ship Products in the complete original packing material.

•Avoid shipping Products via the postal service. If you must use the postal service, be sure to register and insure the package.

a/d/s/ Limited Warranty

Analog and Digital System, Inc. (a/d/s/) warrants to the original consumer purchaser of the a/d/s/ Prod- ucts described in this manual, that the Product will be free from defects in materials and workmanship for a period of one (1) year after the date of purchase, if the Product is installed by an authorized a/d/s/ retail dealer, the warranty is extended to three (3) years. a/d/s/’ sole obligation under the warranty shall be to provide, without charge, parts and labor necessary to remedy the defects, if any, that appear during the warranty period.

This warranty is the sole and exclusive express warranty given with respect to the Product. All other express warranties are hereby excluded. Neither a/d/s/ nor the authorized dealer who sells the Product is responsible for indirect, incidental, or consequential damages. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

IMPORTANT – Keep your original sales receipt. Be sure the retail dealer has written on it the date, model number and serial number (if applicable) of the Product. This information is required for warranty service.

This warranty is limited to:

•Products purchased from authorized a/d/s/ retail dealers in the United States. a/d/s/ will supply a list of

authorized dealers on request.

In order to obtain warranty service you must:

•Return the Product, freight prepaid, to the a/d/s/ dealer from which it was purchased, an authorized a/d/s/ independent service agency, or to a/d/s/. If necessary you may call the a/d/s/ Customer Service Department for the names and addresses of authorized independent service agencies in your area.

•Provide proof of purchase in the form of a copy of your original sales receipt. The date, model num ber and serial number (if applicable) of the Product must be written on the sales receipt.

This warranty does not cover:

•Damage that is the result of misuse, abuse, accident (including but not limited to damage by water), faulty hookup, defective or maladjusted associated equipment, or the use of the Product with equip ment of which it was not intended.

•Cosmetic defects that appear more than thirty (30) days after the date of purchase. Cosmetic damage caused by improper handling is also excluded.

•Products that are used for commercial purposes.

•The cost of removing or reinstalling the Product.

•Damage that occurs while the Product is being shipped to whoever will service it. See the information above regarding shipping procedures.

This warranty is void if:

•The Product identification or serial number is removed or defaced in any way.

•The Product is serviced or repaired by anyone other than a/d/s/ or an authorized a/d/s/ dealer or service agency.

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