Power Amplifier
Key Features:
2 x 450W at 4 Ohms
2 U Rack Space Chassis
Rear Level Controls
Bridge Mode Operation Provides
1 x 900W at 8 Ohms
Complete Protection Package
Selectable 50Hz or 300Hz Hi-Pass Filter for
each Channel
Phoenix Type Inputs
Phoenix Type Outputs
High Efficiency Circuit Design
Front Panel Power On/Off
Technical Specifications:
Number of Channels
8 Ohm
4 Ohm
Rated Output Power (*Rated Load)
THD<1%, 1kHz
Rated Output Power (*Rated Load)
THD<0.2%, 20Hz…20kHz
Slew Rate at 1kHz
Frequency Response, -1dB, Ref. 1kHz
General Description:
The Electro-Voice® PA2450L is from the PA series of
professional commercial audio amplifiers. The direct path
airflow design reduces the heat buildup significantly and
allows for more amplifier channels and output power in
slim two rack space chassis. The audio performance of the
PA2450L is superior and fulfills the requirements in many
demanding long term applications from sound
reinforcement, paging or life safety installations.
The PA2450L features many of the same comprehensive
protection circuits typical in EV amplifiers. Complete
protection is provided for high temperature, audio limiters,
power up delay and peak current limiters. In addition to the
rated output power, the PA2450L provides excellent
headroom for a wide dynamic range on music signals. The
onboard dynamic limiter ensures that the output clipping of
the PA2450L will not will not generate excessive distortion.
The amplifier channels can be bridged for more power
Marked level controls on the rear panel provide hidden
reliable level adjustments for each channel. Front panel
LEDs indicate signal present, 0 dB, and limit. Phoenix type
connectors for inputs and outputs provide an easy rack wiring.
Load Impedance
<10Hz - 40kHz
Damping factor, at 100Hz / 1kHz,
4 Ohm
Power Bandwidth THD=1%, Ref.
1kHz, Half Power
>10Hz - >50kHz
Input Impedance, 20Hz ... 20kHz,
Signal-to-Noise Ratio, A-Weighted
Input Sensitivity at Rated Output
Power or Voltage, 1kHz
104 dB
0dBu (775mV)
THD at rated output power,
MBW=80kHz, 1kHz
IMD-SMPTE, 60Hz, 7kHz
DIM30, 3.15kHz, 15kHz
Crosstalk, Ref. 1kHz, at 10% Rated
Output Power
<-75 dB
Power Requirements
120V or 230V, 50Hz 60Hz
Audio Limiters
High Temperature
Peak Current Limiters
Turn-On Delay
Dimensions (W x H x D), mm 483 x 88 x 406mm (2Ru)
19" x 3.5" x 16"
16.5kg (36.34lbs)
Low Impedance Outputs:
- Min. Rated Load for Single Channel Operation is 4 Ohms. 2 Ohm Load is Not Recommended.
- Min. Rated Load for Bridged Operation is 8 Ohms. 4 Ohm Load is Not Recommended.
Block Diagram:
Dimension Drawings:
Top View
All Dimensions
in Millimeters
PA2450L Part Number:
Front View
PA2450L, 120V -- D170408
Rear View:
12000 Portland Avenue South, Burnsville, MN 55337
Phone:952/884-4051, Fax:952/884-0043
© Telex Communications, Inc. 1/2006
Part Number LIT-0000XX Rev 1
U.S.A. and Canada only. For customer orders, contact Customer Service at:
800/392-3497 Fax: 800/955-6831
Europe, Africa, and Middle East only. For customer orders, contact Customer Service at:
+ 49 9421-706 0 Fax: + 49 9421-706 265
Other International locations. For customer orders, contact Customer Service at:
+ 1 952 884-4051 Fax: + 1 952 736-4212
For warranty repair or service information, contact the Service Repair department at:
For technical assistance, contact Technical Support at: 866/78AUDIO
Specifications subject to change without notice.
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