Precision Power PCX 250 Owner'S Manual Download Page 12

Do  not  attempt  to  service 

P r e c i s i o n

P o w e r

products  yourself.  Performing

exploratory surgery on your audio equipment yourself will void the warranty. Many
parts of your 

P r e c i s i o n

P o w e r

product are custom built to our specifications. Our 

factory parts are not made available to anyone else nor are they for sale. Our goal
is to make sure that your 

Precision

Power

product will always sound as good as

the day it was purchased. Contact your 

Authorized Precision

Power

Dealer

about

obtaining any warranty service through 

Precision

Power

. (See Warranty inside

back cover)

The extended use of a high powered audio system may result in hearing loss or
damage. While 

Precision

Power

systems are capable of "Concert Level" volumes

with incredible accuracy, they are also designed for you to enjoy at more reasonable
levels all of the sonic subtleties created by musicians. Please 

try

to observe all

local sound ordinances.

And thank you for choosing 

Precision

Power

audio equipment. At 

Precision

Power

we proudly design, engineer and manufacture audio products at our production
facilities. Our award winning engineering team utilizes innovative technology to
c o n s i s t e n t ly deliver 

Absolutely State of the Art 

T M

performance, sound quality,

reliability, and value. This 

Precision

Power

product reflects our commitment to

offer you unparalleled versatility and quality for years of dependable service and
listening enjoyment.

This warranty gives you specific legal rights, and you may also have other rights which vary from state
to state. 

Precision

Power

warrants its products to be free from defects in materials and workmanship

under normal use and service for a period of three (3) years from the date of original purchase when
the unit is installed by an Authorized Dealer. Non-Authorized Dealer installed products carry a one (1)
year parts and ninety (90) days labor limited warranty. The extent and conditions of Limited Warranty
are as follows:

1. Authorized Dealer Installed Products: 

Precision

Power

will either repair or replace at no charge, to

the original purchaser, any unit which 

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Power

examination discloses to be defective and

under warranty, provided the defect occurs within three (3) years from the date of original purchase
when the unit is installed by an Authorized Dealer and the product is returned immediately to

Precision

Power

. This warranty is not transferable.

2. Non-Authorized Dealer Installed Products: 

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Power

will either repair or replace at no charge,

to the original purchaser, any unit which 

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Power

examination discloses to be defective and

under warranty, provided the defect occurs within ninety (90) days from the date of purchase and the
product is returned immediately to 

Precision

Power

. Warranty claims beyond ninety (90) days for Non-

Authorized Dealer Installed Products will be for parts only and will extend for one (1) year from the
date of purchase. This warranty is not transferable.
3. Internet and mail order products purchased from non authorized 

Precision

Power 

dealers are not

subject to factory warranty.

Precision

Power

does not endorse or approve of internet and mail order

sales, but will repair products at current non warrantied part and labor rates.
4. The date of purchase and proof of Authorized Dealer Installation of a 

Precision

Power

product must

be established by an original sales receipt which must accompany the article being re-turned for war-
ranty work.
5 . This warranty shall NOTapply to any 

P r e c i s i o n

P o w e r

product found to have the original factory serial

number removed or defaced. All products received (by 

Precision

Power

) for in warranty or out of war-

ranty repair, with their original serial numbers removed or defaced, will NOT be repaired and will be
returned to sender, freight collect. Refer to original packaging for the serial number of your component
speakers.
6. The provisions of this warranty shall not apply to any  

Precision

Power

product used for a purpose

for which it is not designed, which has been repaired or altered in any way, or which has been con-
nected,  installed,  or  adjusted  other  than  in  accordance  with  the  instructions  furnished  in

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Power

owner’s manual. Nor shall this warranty apply to any part which has been subject to

misuse, neglect, or accident.
7.

Precision

Power

does not authorize any other persons to assume any other liability in connection

with  its  products.  THIS  WA R R A N T Y IS  THE  ONLY EXPRESS  WA R R A N T Y MADE  BY

P r e c i s i o n

P o w e r

APPLICABLE  TO  ITS  PRODUCTS.  A N Y IMPLIED  WA R R A N T Y OR  MER-

CHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE APPLICABLE TO

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Power

PRODUCTS IS LIMITED IN DURATION TO THE DURATION OF THIS LIMITED WARRANTY.

Precision

Power

SHALL NOT BE LIABLE FOR THE INCIDENTAL, CONSEQUENTIAL, OR COM-

MERCIAL DAMAGES RESULTING FROM THE BREACH OF THIS WRITTEN WARRANTY. Some
states or provinces do not allow the exclusion or limitation of incidental or consequential damages or
limitations on how long an implied warranty lasts;so the above limitations or exclusions may not apply
to you.
8. Your product will be serviced on an in-warranty basis within the warranty period for the correction
of warranted defects. If improper operation of your 

Precision

Power

product should occur, contact your

Authorized Dealer for assistance with the return and factory repair of your 

Precision

Power

product. If

an Authorized Dealer is not available, return the unit including your name, telephone number, return
address, a copy of your sales receipt, and a description of the problem to:

Precision

Power

Service Department

9235 S. McKemy Street

Tempe, AZ 85284

TO RETURN 

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Power

PRODUCTS OUTOF WARRANTY: Return the unit, postage prepaid,

in the original protective carton. Please include a description of the problem and, if desired, a request
for an estimate of repair costs. Unless a request for an estimate is included, the unit will be repaired
as necessary. Please contact 

Precision

Power

Customer Service at 1-800-62-POWER for questions

concerning out of warranty repair charges. Repaired unit will be returned with an itemized statement,
C.O.D.

Three-Year Limited U.S.A Warranty

21

Summary of Contents for PCX 250

Page 1: ...PrecisionPower 9235 South McKemy Street Tempe Arizona 85284 www precisionpower com 8900 4005 PCX 250 PCX 280 ...

Page 2: ...mentation Input Stage NEW 12dB Octave HP LP FULL 30 4kHz Crossover NEW Independent Line Output Crossover 30 4kHz Adaptive PWM Power Supply Triple Darlington Output Stage AP IV Protection Circuitry Forced Air Thermal Management PCX 280 QBASS Bass Boost PCX 250 QBASS Plus Bass Boost PCX 280 High Voltage Input Capability with 12dB Attenuation Switch Gold Plated RCAInput and Output Connectors PowerLoc...

Page 3: ...tion block near your amplifiers to distribute large gauge power cable to multiple amplifiers NOTE TOOLS ARE NOT SUPPLIED Small flat blade screwdriver Phillips screwdriver 2 or medium sized Wire cutters Wire strippers 4 6 round head screws and 1 8 sheet metal screw or nut bolt flat washer star washer see detail 2 Ring connectors large enough to accommodate your method of grounding In line fuse or c...

Page 4: ...e positive terminal to prevent a short to ground This is important unless you want to spend the rest of your life with a nickname like Sparky or Smokey Reconnect the negative terminal only after all connections have been made 5 Warning A Main Fuse must be installed within 18 of battery 16 ...

Page 5: ...t circuits Thermal Protection engaged The amplifier will turn off and several minutes later will come back on In this case ensure that there is nothing blocking the normal convective airflow of the amplifier No obstruction should be within 2 of the amplifier on all sides NOTE Low battery voltage will cause the amplifier to run warmer and possibly damage the amplifier NO SOUND Is the LED lit YES NO...

Page 6: ...ndent selection of frequencies from 30 4kHz See page 19 NOTE The System Diagrams beginning on page 15 show several ways to use the virtually unlimited PCX amplifiers internal crossovers in your system 12 1 Cooling Plenums Maintain a minimum 2 clearance around cooling plenums for proper amplifier cooling 2 Crossover HP LP FULL Select Switch Adjust this switch to select the HPF LPF FULLfunction for ...

Page 7: ...outer screws on the underside of the connector Insert the speaker leads into the end Check to be sure you ve maintained proper polarity before securing each wire and plug the PowerLock into the amplifier 10 The Advanced Instrumentation Input has trickled down from the 15 000 PrecisionPower2500F1 This circuit completely isolates the chassis ground from the audio circuit of the amplifier and reduces...

Page 8: ... temperature reaches a pre determined value the fan is activated and cool air is drawn in through the lower intake vents on the endplate This cool air flows below the circuit board through the fan and across the internal fins cooling the heatsink The warm air is then forced out through the upper endplate exhaust vents The New PCX amplifiers mass has been increased by 2 lbs per linear foot over las...

Page 9: ...ilicone or some similar material to prevent rust from developing on the bare metal If your grand total current draw is over 50 amps or total output power is over 300 watts you should run a separate ground wire beside your power wire from the battery to the amplifier s Keep the ground and power wires as close together as possi ble and use the same gauge wire for both This will ensure that you have ...

Page 10: ...6 6 Amps Total current draw 12V If the same amplifier is driven into a 2 Ohm stereo or 4 Ohm mono load double it s 4 Ohm RMS rating All POWERCLASS amplifiers will effectively double their power at this load 160W x 2 x 2 640W 640W 53 3 Amps Total current draw 12V If you are using more than one amplifier add up the total current draw for all of them and choose the appropriate gauge based on the gran...

Page 11: ...r circuit In doing this PrecisionPower engineers have allowed you to daisy chain your RCAoutput to the next amplifier input causing the first amplifier s Q BASS Remote to become the master control amplifier See your Authorized PrecisionPower Dealer for more information See diagram pg 18 Q BASS Settings 1 2 Freq IN IN 30Hz IN OUT 36Hz OUT IN 44Hz OUT OUT 60Hz 2 19 QBASS Plus PCX 280 Up to 18dB of B...

Page 12: ...l order products purchased from non authorized PrecisionPower dealers are not subject to factory warranty PrecisionPower does not endorse or approve of internet and mail order sales but will repair products at current non warrantied part and labor rates 4 The date of purchase and proof of Authorized Dealer Installation of aPrecisionPower product must be established by an original sales receipt whi...

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