Rear Panel, Audio Signal Inputs | Electro-Voice PA2250T, PA2400T

REAR PANEL

Audio Signal Inputs

The electronically balanced inputs facilitate the connection of external signal sources (e.g. mixing consoles). When screwed to the power amp, the screwlock connectors provided with the unit prevent accidental disconnection.

Choosing balanced cables (2 conductors for audio signals + separate shielding mesh) for LF-signal connection is generally recommended, even when the connected signal source does not provide balanced output signals. This is possible by jointly connecting “–” conductor and shield on the source side (also refer to “LF-Connection Cords).

Level Controls

The Level Controls allow setting the according power amp channel’s overall amplification. To prevent distortion in mixing consoles connected to the amp, setting these controls to a value between -6dB and 0dB is generally recommended. A scale provides direct indication of the varying additional control attenuation applied to the fixed internal amplification.

Mode Switch

The Mode Switch allows selecting the power amp’s mode of operation. With the four- channel model it is possible to independently select channels A and B or C and D. The single-channel model comes without mode switch.

DUAL: The power amp channels work independently from each other, each re- producing the audio signals fed to the corresponding input.

PARALLEL: Both channels reproduce the audio signal fed to input A (or C). However, using the level controls allows individually setting the channel volumes.

BDGD: Audio signals need to be fed to channel A (or C) when in Bridged Mode. Power amps A and B (or C and D) now work in push-pull operation delivering doubled output voltage. Please keep in mind to correctly connect the loudspeaker systems for Bridged Mode operation. (also refer to “Loudspeaker Outputs”)

High Pass Filter (HPF)

The Hi-Pass filter allows effective attenuation of low bass audio signals. You can choose from three cut-off frequency settings:

Power Amps with low impedance outputs

300Hz, 12dB/Oct., BW 50Hz, 12dB/Oct., BW OFF (no Hi-Pass filter)

Power Amps with output transformer

300Hz, 12dB/Oct., BW 70Hz, 12dB/Oct., BW 50Hz, 18dB/Oct., BW

As a basic principle, all models with output transformer have a 50Hz Hi-Pass filter in the audio signal path to protect the transformer from being driven into saturation by high level low-frequency signals.

PA2250T, PA4150L, PA2450L, PA1250T, PA2400T specifications

The Electro-Voice PA2400T is a powerful and versatile amplifier designed for professional audio applications, making it a favorite among audio engineers and event organizers. Its robust performance, combined with sophisticated technology, ensures that users get exceptional sound quality and reliability whether for live performances, public address systems, or installed audio setups.

One of the defining features of the PA2400T is its considerable power output. The amplifier delivers 1200 watts per channel at 4 ohms, ensuring ample power for even the most demanding sound reinforcement situations. This kind of power allows the PA2400T to drive large speakers effectively, providing clear, dynamic sound that captures the attention of any audience.

The PA2400T utilizes advanced thermal protection and limiting circuitry to safeguard against overheating and overloading, which is crucial for prolonged use in high-energy environments. This technology allows the amplifier to maintain optimal performance without compromising sound quality, guaranteeing an extended lifespan even under heavy workloads.

Built with a sturdy metal chassis, the PA2400T is designed for durability and reliability. The front-panel indicators provide real-time feedback on power and signal levels, ensuring users can easily monitor the system's performance at a glance. Additionally, its rack-mountable design makes it suitable for both portable and installed applications, providing flexibility in setup.

In terms of connectivity, the PA2400T features balanced XLR inputs for a professional connection to mixers and other audio sources, along with binding post and Speakon outputs that cater to various speaker configurations. This versatility makes it an ideal choice for a wide range of audio setups, whether in small venues, larger concert halls, or fixed installations.

Further enhancing its adaptability, the PA2400T incorporates a variable speed fan that responds to operational temperatures, ensuring silent operation when needed. This feature is particularly beneficial in environments where noise levels need to be minimized while delivering powerful audio performance.

In summary, the Electro-Voice PA2400T is an exceptional amplifier that combines power, performance, and reliability, making it an indispensable tool for professionals in the audio industry. Its advanced technologies and robust features ensure that it meets the high demands of sound reinforcement applications, while delivering superior sound quality consistently. Whether for live events, installations, or touring, the PA2400T stands out as a reliable choice for audio excellence.