Key Features | Electro-Voice PA1250T instruction

PA1250T

Single-Channel

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

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 installations.

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.

Technical Specifications:

Number of Channels 1

Load Impedance 70V/100V

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

Balanced

Signal-to-Noise Ratio, A-Weighted 103 dB

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.

PA1250T specifications

The Electro-Voice PA1250T is a robust power amplifier designed specifically for commercial audio applications requiring reliability, performance, and efficiency. Known for its pivotal role in live sound reinforcement, the PA1250T embodies cutting-edge technology to deliver exceptional sound quality for both professional and semi-professional settings.

At the heart of the PA1250T lies its impressive power output, providing 1250 watts at 4 ohms, ensuring that it can drive a wide range of speakers efficiently. This capability makes it a versatile choice for various audio setups, including public address systems, live concerts, and permanent installations in venues such as schools and auditoriums. Its lightweight design, weighing only 20 pounds, allows for easy transport and installation.

One of the standout features of the PA1250T is its Class D amplifier topology. This technology not only contributes to the amplifier's lightweight build but also enhances efficiency, generating less heat compared to traditional Class AB designs. This translates into longer operational periods without the risk of thermal overload, making it an ideal choice for prolonged use in demanding environments.

The amplifier is equipped with advanced protection circuitry, including short-circuit, thermal, and overload protection, ensuring the integrity of the unit and connected equipment. The PA1250T also boasts an integrated switch-mode power supply, which optimizes energy consumption and maintains consistent performance across varying input voltages.

Audio processing capabilities elevate the PA1250T’s performance, featuring a frequency response range from 20 Hz to 20 kHz, ensuring that both low-end and high-frequency sound reproduction remains clear and precise. Additionally, the amplifier provides a signal-to-noise ratio of over 100 dB, ensuring that even the most subtle nuances of audio are preserved, making it suitable for high-fidelity applications.

Connectivity options are abundant, including XLR and Euroblock inputs, which facilitate various setup configurations. The PA1250T also includes flexible output capabilities, allowing configurations for both low-impedance and high-impedance systems. This flexibility makes it adaptable for installations requiring different impedance levels.

Overall, the Electro-Voice PA1250T combines powerful performance with advanced technology, making it a top choice for audio professionals seeking a reliable and high-quality power amplifier for diverse applications. Its blend of efficiency, safety features, and audio fidelity cements its reputation as a go-to solution for both touring engineers and fixed installations in commercial settings.