MAINS OPERATION & RESULTING TEMPERATURE

Mains Operation

The following tables provide a useful aid in determining power supply and cabling requirements. Column “1/8 max. output power into 4 ohms(2)” states the values to be used for normal operation. These results were measured with the power amplifier being operated at maximum output and a Pink Noise signal according to EN60065 applied at the input, which approximately represents the strain of an audio signal driving the power amp at maximum modulation.

Temperatures inside of the power amplifier

The power drawn from the mains network is converted into acoustic output to feed the connected loudspeaker systems plus heat. The difference between drawn power and dispensed power is referred to as leakage power or dissipation (PD). The amount of heat resulting from power dissipation might remain inside of a rack-shelf and needs to be diverted using appropriate measures. The following table is meant as auxiliary means for calculating temperatures inside of a rack-shelf system/cabinet and the ventilation efforts necessary.

The column “PD” lists the leakage power in relation to different operational states. The column “BTU/hr” shows the dispensed heat amount per hour.

 

PA2450L

Umains

Imains

Pmains

Pout

PD

BTU/

 

 

[V]

[A]

[W]

[W]

[W]

hr(3)

 

idle

230

0,2

28

0

28

96

 

Max. output power into 8ohms(1)

230

5,4

923

2x300

323

1102

 

Max. output power into 4ohms(1)

230

8,8

1605

2x480

645

2201

 

1/3 max. output power into 4ohms(1)

230

5,6

953

2x160

633

2160

 

1/8 max. output power into 4ohms(1)

230

3,7

598

2x60

478

1631

 

1/8 max. output power into 4ohms(2)

230

3,2

530

2x60

410

1399

 

1/8 max. output power into 4ohms(2) (4)

253

3,6

629

2x73

484

1651

 

Normal Mode (-10dB) into 4ohms(1)

230

3,2

550

2x48

454

1549

 

Rated output power (0dB, rated) into 4ohms(1)

230

8,1

1482

2x450

582

1986

 

Alert-Mode (-3dB) into 4ohms(1)

230

6,1

1065

2x225

615

2098

 

 

 

 

 

 

 

 

 

PA4150L

Umains

Imains

Pmains

Pout

PD

BTU/

 

 

[V]

[A]

[W]

[W]

[W]

hr(3)

 

idle

230

0,4

54,7

0

55

187

 

Max. output power into 8ohms(1)

230

3,9

653

4x100

253

863

 

Max. output power into 4ohms(1)

230

6,3

1126

4x160

486

1658

 

1/3 max. output power into 4ohms(1)

230

4,0

665

4x53

452

1541

 

1/8 max. output power into 4ohms(1)

230

2,7

428

4x20

348

1187

 

1/8 max. output power into 4ohms(2)

230

2,4

385

4x20

305

1041

 

1/8 max. output power into 4ohms(2) (4)

253

2,6

450

4x24

353

1205

 

Normal Mode (-10dB) into 4ohms(1)

230

2,4

385

4x16

321

1095

 

Rated output power (0dB, rated) into 4ohms(1)

230

6,1

1080

4x150

490

1638

 

Alert-Mode (-3dB) into 4ohms(1)

230

4,6

790

4x75

490

1672

(1)Sine wave 1kHz

(2)Pink noise acc. to EN60065

(3)1BTU = 1055.06J = 1055.06Ws

(4)10% mains over voltage

(5)PD = Power dissipation

The following factors allow direct proportional calculation of the mains current (Imains) for different mains supply voltages: 100V = 2,3; 120V = 1,9; 220V = 1,05; 240V = 0,96

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Electro-Voice PA2450L, PA2400T, PA2250T Mains Operation & Resulting Temperature, Temperatures inside of the power amplifier

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.