Electro-Voice PA1250T Data Sheet

Electro-Voice PA1250T Data Sheet
Power Amplifier
Key Features:
1 x 270W at 70/100V
2 U Rack Space Chassis
Stepped Rear Level Controls
Complete Protection Package
Selectable 50 Hz or 300 Hz
Hi-Pass Filter
Phoenix Type Input
Phoenix Type Output
High Efficiency Circuit Design
Front Panel Power On/Off
Technical Specifications:
Number of Channels 1
Load Impedance 70V/100V
General Description:
The Electro-Voice® PA1250T is from the PA series of
professional commercial audio amplifiers. The direct path
airflow design reduces the heat buildup significantly and
allows for more reliable operation in slim two rack space
chassis. The audio performance of the PA1250T is superior
and fulfills the requirements in many demanding long term
applications from sound reinforcement, paging or life safety
Rated Output Power (*Rated Load) 270W
THD<1%, 1kHz
Rated Output Power (*Rated Load) 250W
THD<0.2%, 20Hz…20kHz
Slew Rate at 1kHz 41V/µs
Frequency Response, -1dB, Ref. 1kHz 65Hz - 20kHz
Power Bandwidth THD=1%, Ref. 45Hz - >20kHz
1kHz, Half Power
Input Impedance, 20Hz ... 20kHz, >20kOhm
Signal-to-Noise Ratio, A-Weighted 103 dB
High performance torroidal power and output transformers
combine clean saturation free audio performance with cool
running operation. The PA1250T 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 PA1250T provides excellent
headroom for a wide dynamic range on music signals. The
onboard dynamic limiter ensures that the output clipping of
the PA1250T will not will not generate excessive distortion. A
detented and marked level control on the rear panel provides
hidden reliable level adjustments for the channel. Front panel
LED indicates signal present, 0 dB, and limit. Phoenix type
connectors for inputs and outputs provide easy rack wiring.
Input Sensitivity at Rated Output 0dBu (775mV)
Power or Voltage, 1kHz
THD at rated output power, <0.1%
MBW=80kHz, 1kHz
IMD-SMPTE, 60Hz, 7kHz <0.1%
DIM30, 3.15kHz, 15kHz <0.1%
Power Requirements 120V or 230V, 50Hz 60Hz
Protection Audio Limiters
High Temperature
Peak Current Limiters
Turn-On Delay
Cooling Front-to-Rear
Dimensions (W x H x D), mm 483 x 88 x 406mm (2Ru)
19" x 3.5" x 16"
Weight 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
PA1250T Part Number:
Front View
PA1250T, 120V -- D170405
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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