CAUTION

RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
The lightning flash with arrowhead
symbol within an equilateral triangle
is intended to alert the user to the
presence of uninsulated"dangerous
voltage" within the product's
enclosure, that may be of sufficient
magnitude to constitute a risk of
electric shock to persons.
The exclamation point within an
equilateral triangle is intended to alert
the user of the presence of important
operating and maintenance (servicing)
instructions in the literature
accompanying the appliance.
Introduction............................................................2
Unpacking and Paperwork.....................................2
Features and Specifications
PXm250 ..........................................................3-4
PXm450 ..........................................................5-6
PXm900 ..........................................................7-8
Controls and Functions.....................................9-10
Installation and Operation
Location and General Precautions....................11
Mechanical Considerations ..............................11
Rear Support.....................................................11
Thermal Considerations....................................11
AC Power Considerations................................11
Magnetic Leakage Considerations ...................11
Input Wiring......................................................11
Standard Version.........................................11
BR Version..................................................12
High Pass Filter ..........................................12
Installation (continued)
High Pass Filter Cut Off.............................13
Clip Limiter ................................................13
Input Sensitivity..........................................13
Output Wiring.............................................13
Multi-way binding Posts.............................13
Polarity........................................................13
Bridged Mono.............................................14
Parallel Mono..............................................14
70V Distribution Systems...........................14
70V Direct Drive ........................................14
Operating Tips......................................................15
Care and Service Assistance ................................15
In Case of Difficulty.............................................16
Warranty Information...........................................17
Cables and Accessories........................................18
Safety InformationTable Of ContentsIntroduction
Congratulations on your purchase of a new Carver Professional Power Amplifier. The PXm250,
PXm450 and PXm900 are designed for any pro audio application. The PXm amplifiers are
designed and produced by Carver Professional, a division of Phoenix Gold International, Inc.
They combine the experience in pro audio and sonic heritage of Carver Professional with the per-
formance, manufacturing quality and attention to detail that has defined Phoenix Gold
International. Thank you for placing your confidence in Carver Professional and Phoenix Gold. We know
your amplifier will provide many years of dependable service and reliable sound reproduction.
Please read this entire manual, especially the Safety Warnings, before operating your amplifier.
Unpacking andPaperwork
Carefully unpack the amplifier and keep the original carton and packing materials for future moving, shipment
or long-term storage. After opening the box, please check for visible signs of damage that were not apparent
from the outside of the box. If you encounter what appears to be concealed damage, please consult your
Carver Professional Dealer before installing unit.
Important Paperwork
Make sure to save your sales receipt. Your receipt is extremely important to establish the duration of your
Limited Warranty and for insurance purposes. Next, make a note of the serial number, which is located on
the back of the amplifier. Record it in the space provided below for convenient reference.
Model: ___PXm250 ___PXm250BR ___PXm250SP
___PXm450 ___PXm450BR ___PXm450SP
___PXm900 ___PXm900BR ___PXm900SP
Serial Number: _____________________________
Purchased at: _______________________________
Date: _____________________________________
F i n a l l y, take a moment to fill out the Warranty Registration Card packed with the amplifier and return it to
Carver Professional. This will allow us to keep you informed about new products, as they become available.
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