OWNER‘S MANUAL BEDIENUNGSANLEITUNG MODE D‘EMPLOI PA1250T PA2250T PA2400T PA2450L PA4150L PA SERIES
CONTENTS ENGLISH IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SERVICE INSTRUCTIONS DESCRIPTION Unpacking & Warranty Installation Notes FRONT PANEL Mains Switch Protect Limiter Level Indication Power REAR PANEL Audio Signal Inputs Level Controls Mode Switch High Pass Filter Loudspeaker Outputs Mains Fuse Mains Socket Voltage Selector LF CONNECTION CORDS MAINS OPERATION & RESULTING TEMPERATURE NOTES FRANCAISE ...... 3 ...... 3 ...... 4 ...... 4 ...... 4 ...... 5 ...... 5 ...... 5 ...... 5 ...... 5 ...... 5 ......
IMPORTANT SAFETY INSTRUCTIONS The lightning flash with arrowhead symbol, within an equilateral triangle is intended to alert the user to the presence of uninsulated „dangerous voltage“ within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16.
DESCRIPTION Congratulations on your ElectroVoice PA series power amplifier purchase! The ElectroVoice PA-Series power amp line combines outstanding audio performance, exceptional reliability and secure operational safety in a compact 2RU chassis design. All models in the PA Series provide several protection circuits which not only prevent the power amplifier itself but also the connected loudspeaker systems from being damaged.
FRONT PANEL Mains Switch Use the mains switch to switch the unit’s power on. A soft-start function prevents inrush current peaks on the mains, additionally preventing the mains line protection switch from activating during the amp’s power-on operation. Loudspeaker outputs are activated via relay switching with a delay of approx. 2 seconds, which effectively eliminates eventual power-on noise. During this delay period, the Protect LED lights to confirm correct operation of the protection circuitry.
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.
REAR PANEL Loudspeaker Outputs The speaker output jacks are suitable for connecting speaker cables with a maximum diameter of 2.5 mm2. The provided screwlock connectors can be screwed to the power amp to prevent inadvertent disconnection. Power amps offer low impedance outputs and / or floating outputs (ISOLATED OUTPUTS) with nominal voltages of 50V, 70V and 100V, depending on the amp model.
REAR PANEL Mains Fuse Under normal circumstance, the mains fuse blows only in the event of failure. When replacing the fuse, make sure to use a fuse of the same type with identical amperage, voltage and blow characteristics. If the mains fuse blows repeatedly, please contact an authorized service centre. Mains Socket Please, make sure to check whether the voltage selector is set to the correct mains voltage that matches the local mains supply at the installation site.
MAINS OPERATION & RESULTING TEMPERATURE Mains Operation The following tables provide a useful(2)aid in determining power supply and cabling requirements. Column “1/8 max. output power into 4 ohms ” 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.
MAINS OPERATION & RESULTING TEMPERATURE PA2400T - 100V output idle Max. output power into 25ohms (1) Umains [V] Imains [A] Pmains [W] Pout [W] PD [W] BTU/ hr(3) 230 0,3 44,3 0 44 151 230 8,9 1643 2x430 783 2672 1/3 max. output power into 25ohms (1) 230 5,5 952 2x143 665 2270 1/8 max. output power into 25ohms (1) 230 3,7 602 2x54 495 1687 1/8 max. output power into 25ohms (2) 230 3,3 545 2x54 438 1493 1/8 max.
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BLOCK DIAGRAM PA2450L / PA4150L CH.
BLOCK DIAGRAM PA4150L CH.
BLOCK DIAGRAM PA2400T / PA2250T 35
BLOCK DIAGRAM PA1250T 36
DIMENSIONS PA series amplifier dimensions in mm.
USA Telex Communications Inc., 12000 Portland Ave. South, Burnville, 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 www.electro-voice.