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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

[V]

Imains

[A]

Pmains

[W]

Pout

[W]

PD

[W]

BTU/

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

[V]

Imains

[A]

Pmains

[W]

Pout

[W]

PD

[W]

BTU/

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

9

Содержание PA1250T

Страница 1: ...OWNER S MANUAL BEDIENUNGSANLEITUNG MODE D EMPLOI PA1250T PA2250T PA2400T PA2450L PA4150L PA SERIES ...

Страница 2: ... 16 Mode Schalter 16 Hochpassfilter 16 Lautsprecherausgänge 17 Netzsicherung 18 Netzbuchse 18 Spannungswahlschalter 18 NF VERBINDUNGSKABEL 18 NETZBETRIEB WÄRMEENTWICKLUNG 19 NOTIZEN 21 2 FRANCAISE TABLE DES MATIÉRES 22 INSTRUCTIONS DE SÉCURITÉ IMPORTANTES 23 INSTRUCTIONS DE RÉPARATION IMPORTANTES 23 INTRODUCTION 24 Déballage et garantie 24 Remarques concernant l installation 24 FACE AVANT 25 Inter...

Страница 3: ... 15 To completely disconnect this equipment from the AC Mains disconnect the power plug from the AC receptacle 16 The mains plug of the power supply cord shall remain readily operable CAUTION These servicing instructions are for use by qualified personnel only To reduce the risk of electric shock do not perform any servicing other than that contained in the Operating Instructions unless you are qu...

Страница 4: ...a safe place Installation Notes First of all please make sure to check that the voltage selector on the amp s rear is set to the correct position matching the installation site s local mains voltage Generally installing or mounting power amps should be carried out in a way that guarantees continuously unopposed front to rear air circulation When including an appliance in a closed cabinet or rack s...

Страница 5: ...needs to be remedied In case of thermal overload you have to wait until the power amplifier automatically returns to normal operation Limiter The Limit indicator lights as soon as the integrated dynamic limiter is being activated and the power amp is driven at the clipping limit or generally at its maximum capacity Short term blinking is not a problem because the internal limiter trims input level...

Страница 6: ...nel 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...

Страница 7: ...r persons who have been instructed on how to do so Otherwise use prefabricated cables only PA1250T PA2250T PA2400T Integrated audio output transformers convert the power amp s nominal output voltage to 50V 70V and 100V The amplifier models PA2250T and PA2400T present all voltages simultaneously at the floating outputs so that the power amp channels can be used in any combination of possible output...

Страница 8: ...ains voltage make sure to replace the mains fuse with an appropriate model Please refer to the label on the rear of the enclosure indicating the correct values for different mains voltages LF connection cords Choosing balanced cables two conductors for audio signals plus separate shielding mesh is recommended for LF signal connection Although connecting unbalanced cables to the power amplifier inp...

Страница 9: ...dle 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 in...

Страница 10: ...dB into 40ohms 1 230 2 1 328 2x27 274 935 Rated output power 0dB rated into 40ohms 1 230 5 4 929 2x250 429 1464 Alert Mode 3dB into 40ohms 1 230 4 0 668 2x125 418 1426 PA1250T 100V output Umains V Imains A Pmains W Pout W PD W BTU hr 3 idle 230 0 2 21 7 0 22 74 Max output power into 40ohms 1 230 2 8 487 1x270 217 740 1 3 max output power into 40ohms 1 230 1 8 289 1x90 199 679 1 8 max output power ...

Страница 11: ...32 TECHNICAL SPECIFICATIONS ...

Страница 12: ...33 BLOCK DIAGRAM PA2450L PA4150L CH A B ...

Страница 13: ...34 BLOCK DIAGRAM PA4150L CH C D ...

Страница 14: ...35 BLOCK DIAGRAM PA2400T PA2250T ...

Страница 15: ...36 BLOCK DIAGRAM PA1250T ...

Страница 16: ...37 DIMENSIONS PA series amplifier dimensions in mm ...

Страница 17: ...urnville MN 55337 Phone 1 952 884 4051 FAX 1 952 884 0043 Germany EVI AUDIO Hirschberger Ring 45 D 94315 Straubing Germany Phone 49 9421 706 0 FAX 49 9421 706 265 Subject to change without prior notice Printed in Germany 10 08 2006 361 122 www electro voice de ...

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