Carver pxm900, pxm450, pxm250 User Manual
p x m 2 5 0 /4 5 0 / 90 0
Professional Stereo Power Amplifier
Safety Information
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
Table Of Contents
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
Introduction
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 performance, 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 and
P aperwork
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.
_____________________________________
_____________________________
_______________________________
2
PXm250
250W bridged mono into 8 ohms
•
175W per channel into 2 ohms
125W per channel into 4 ohms
75W per channel into 8 ohms
Three connector versions available:
•
Standard - XLR and 1/4" TRS inputs with
Multi-way Binding Posts
BR Version - Barrier Strip inputs with
Multi-way Binding Posts
SP Version - XLR and 1/4" TRS inputs with
Neutrik™ Speakons™
Independent level controls for CH1 & CH2
•
Independent CH1 and CH2 switchable High Pass
•
Filters, selectable at 30Hz or 80Hz
Independent CH1 and CH2 selectable Clip Limiters
•
Independent CH1 and CH2 selectable Input
•
Sensitivity @ 0.775Vrms or 1.5Vr m s
Externally configurable for Parallel Mono mode,
•
to operate both channels with a mono signal
Externally configurable for Bridged Mono mode,
•
to combine the power of both channels into a
higher powered mono channel
Protection circuitry includes Thermal and
•
Short Circuit
Power Ready, Signal Present, Clip, Protect and
•
Thermal LED indicators for each channel
Variable speed fan cooling
•
RAMPoptional computer monitoring port
•
3
Power Output, both channels driven:
(1kHz, 1%THD), 175W per
channel into 2 ohms, 125W
per channel into 4 ohms,
75W per channel into 8
ohms
Continuous Average Output Power, both
channels driven:
(20Hz to 20kHz, with no more
than 1% THD), 120W per
channel into 4 ohms, 70W per
channel into 8 ohms
Bridged-mono operation:
250W into 8 ohms, 1kHz,
<1% THD
240W into 8 ohms 20Hz to
20kHz, <1% THD
Parallel-mono operation:
70W per channel into 8
ohms, from 20Hz to 20kHz,
<1% THD
120W per channel into 4
ohms, from 20Hz to 20kHz,
<1% THD
Dynamic Headroom: 2.0dB
F requency Response:20Hz to 20kHz (+/- 0.5 dB)
Channel Separation: >55dB @ 1kHz
Damping Factor: > 180
Input Impedance: 20K ohms, balanced
Sensitivity: 0.775V / 1.5V rms for rated
power into 4 ohms
Gain: 29dB, 23dB dependent on
sensitivity
Input Overload: +20dBu
THD: <0.1% @ 60W
IM Distortion: <0.15%
Signal-to-Noise Ratio:
>104dB, A-weighted,
ref. to rated power into 8
ohms
Slew Rate: 29V/µ Sec.
CMRR: 55dB @ 1kHz Typical
Current Consumption:
41w @ idle, 144w with
musical program, 424w @ full
power into 8 ohms,
(continuous), 643w @ full
power into 4 ohms
(continuous)
Power Requirements:
120VAC/60Hz (USA and
Canada). Other voltages as
required for export
Display: 5 LED indicators per channel;
1 red CLIP
1 yellow SIGNAL
1 green POWER ON
1 red PROTECT
1 red THERMAL
Size (H x W x D): 3.5" (2U) x 19" x 15.38"
89mm x 483mm x 391mm
Net Weight: 24.4 lbs., (11.1 kg)
Shipping Weight: 28.0 lbs., (12.7kg)
Due to ongoing research and development,
all specifications and features are subject to change
without notice.
Barrier strip input version available. Order
PXm250BR.
Neutrik™ Speakon™ version available. Ord e r
P X m 2 5 0 S P .
Handle Kit available. Order PX2HK.
The PXm250 series is available in 100V, 120V and
230V 50/60Hz.
4
PXm450
450W bridged mono into 8 ohms
•
275W per channel into 2 ohms
225W per channel into 4 ohms
150W per channel into 8 ohms
Three connector versions available:
•
Standard - XLR and 1/4" TRS inputs with
Multi-way Binding Posts
BR Version - Barrier Strip inputs with
Multi-way Binding Posts
SP Version - XLR and 1/4" TRS inputs with
Neutrik™ Speakons™
Independent level controls for CH1 & CH2
•
Independent CH1and CH2 switchable High Pass
•
Filters, selectable at 30Hz or 80Hz
Independent CH1and CH2 selectable Clip Limiters
•
Independent CH1 and CH2 selectable input
•
sensitivity @ 0.775Vrms or 1.5Vrms
Externally configurable for Parallel Mono mode,
•
to operate both channels with a mono signal
Externally configurable for Bridged Mono mode,
•
to combine the power of both channels into a
higher powered mono channel
Protection circuitry includes Thermal and
•
Short Circuit
Power Ready, Signal Present, Clip, Protect and
•
Thermal LED indicators for each channel
Variable speed fan cooling
•
RAMP optional computer monitoring port
•
5
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