Electro-Voice P2000 User's Manual
Contents
1. LIMITER OUTPUT SIGN OUTPUT TRANSFORMER BALANCE Vs FAST SLOW A OPTIONAL STAGE H Lo cut LEVEL 979 YX ON OFF CHANNEL A 5 A CHANNEL A a A cz T BRIDGE POWER AMP E o 1 LIMITER De Pretec LO CUT HI CUT HF Protect LS INPUT Vx LIMIT CONTROL 8 OUTPUTA 8 x 0 0 5 LIMITA VCCA 9 FLOATING VOLTAGE INPUT ROUTING 7 8 STEREO MONO 55 5 DUAL PARALLEL 22 99 zs o H 299 5 LIMITER VCCB BRIDGED OUT E OUTPUT TRANSFORMER BALANCE FASTISLOW A OPTIONAL STAGE HI LO CUT LEVEL v7 rae ON OFF CHANNEL A CHANNEL B Ig ra MIRRORED BRIDGE POWER s an Sense H o 7 FRONTEND Therm Sense o T LIMITER DC Protect LO CUT HI CUT Protect Se 4 Vx INPUT 7 OUTPUT MX A LIMIT B VCCB FLOATING VOLTAGE OUTPUT SIGN INPUT SIGN PRESENT 177 I GROUND POWER VCC A MUTE DRIVE W SUPPLY gp MAINS TRANSFORMER A THERMAL SENSE POWER veca gt POWER SUPPLY SENSE A ON LLL Tq MAIN FUSE A N INRUSH CURRENT LIMIT o o cz POWER FLOATING n TURN b SUPPLY gt POWER SUPPLY SENSE B FLOATING io LELOATING A gt MAINS TRANSFORMER B THERMAL SENSE2. i 4 POWER ON RELAY B E xt x x l SA NA POWER FLOATING FAN SUPPLY ol rl cz 1 b hcl FLOATING 5 5 MAIN FUSE i t 5 5 amp 1 amp RELAY VCC B POWER _ VCCB EY Electro Voice Inc ELECTRO VOICE swarkivcompany 600 Cecil Street Buchanan Michigan 49107 MANUFACTURING PLANTS BUCHANAN MI NEWPORT TN SEVIERVILLE TN OKLAHOMA CITY OK GANANOQUE ONT 1995 Litho in U S A Part Number 532490 9530
3. Fast Slow Circuit L To Chassis Switch Grounded Ungrounded Input Routing Parallel Mono or Dual Stereo Front Two calibrated input level controls power switch Front Panel Indicators Five LED s per channel 10 total for power on input signal output signal limiter on and protect on Connections Input 3 pin female XLR type connectors for each channel in parallel with a 3 pin male XLR type output connector for easy signal routing the XLR connec tors are wired according to the IEC 268 standard pin 1 shield pin 2 positive pin 3 negative Output Neutrik Speakon NL4MP for channels A B and for bridged mode Power 12 gauge 3 wire permanently attached power cable no ac plug supplied P2000 SPECIFICATION GRAPHICS FIGURE 1 P2000 Dimensions 440 mm 17 34 17 34 in 1 01 0 010 426 16 8 in 0 001 1 5 5mm 0 22 in 483 mm 19 0 in jP2000 o PRECISION SERIES FIGURE 3 P2000 Front and Rear Panel CHAO O O O CHANNEL CHANNEL P2000 PRECISION SERIES BRIDGED LIMITER MODE GROUNDED UNGROUNDED gt RATED 4 OHMS 800W CHANNEL B CHANNEL A BRIDGED OUT RATED 8 OHMS 1600W HI LO CUT FILTER FAST sLow LO BRIDGED NORMAL MONO STEREO RATED 4 OHMS 800W FIGURE 2 P2000 Intermodulation Distortion SMPTE 60 Hz 7 kHz vs Power WATTS P2000 PRECISION S
4. and ensures headroom is not wasted The P2000 s professional Neutrik Speakon output connectors provide a sturdy reliable connection and allow use of heavy wire for loss free signal transmission There are separate output connectors for channels A and B and for the bridge mode The bridge mode connectoris sealed with a plastic cover to prevent connec tion errors To prevent ground loops from occurring the P2000 is equipped with a ground lift switch When the amplifier is operated in a rack with units of different ground potential the switch may be adjusted to eliminate hum Calibrated detented potentiometers on the front panel regulate the gain of the P2000 The panel nomenclature shows the amount of attenuation accurately The P2000 also has a constant gain option which with input level controls full clockwise provides a 26 voltage gain that is identical to that of all Electro Voice Precision Series am plifiers in the constant gain option regardless of power rating This makes it possible to ex change amplifiers of different power ratings withoutupsetting delivered sound pressure lev els or spectral balances The Electro Voice P2000 is the choice for seri ous professional amplification applications which require optimum sound quality speaker protection and the highest level of construction quality and long term reliability Figure 3 shows P2000 front and rear panels The block diagram is shown in Figur
5. action is governed by very sophisticated input output comparators which have acoustically optimized time con stants to preserve the integrity of the source The limiter s time constants are switchable fast slow so the limiter may be matched to the application for which the amplifier is being used The P2000 has built in switchable high and low cut filters These filters attenuate infrasonic and ultrahigh frequency signals preventing them from being amplified this allows more effective use of the amplifier s power and adds a measure of load protection These filters are switchable on off for use in applications utiliz ing frontend units like crossovers or equaliz ers which have these filters built in multifunction display keeps the user informed of the operating status of the amplifier Sepa rate LED displays for each channel show power on input signal output signal limiter on and protection active The P2000 has electronically balanced XLR type input and output connectors that allow easy problem free connections and signal routing The P2000 has an input routing switch that allows selection of either normal dual channel operation or parallel mono operation which routes an input to both channels but still allows forindependent level control The P2000 also has a constant gain option which allows the voltage gain to be fixed This permits differ ent amplifiers to be used in fixed installations without rebalancing
6. ERIES INPUT ROUTING OUTPUT INPUT CHANNEL A ON OUTPUT INPUT CHANNEL B PARALLEL DuaL Operating Voltage 120 V 60 Hz ac Power Consumption both channels operating in dual mode s power 4 Ohms 800 VA Dimensions See Figure 1 Height 132 5 mm 5 25 in Width 483 mm 19 0 in Depth 426 mm 16 8 in Color Gray Net Weight 26 kg 57 2 Ib Shipping Weight 30 kg 66 Ib DESCRIPTION The Electro Voice P2000 Precision Series amplifier is a very high quality power amplifier designed to elicit maximum performance from any speaker system Its ultralow distortion and powerful amplifiers ensure that program mate rial will be amplified very accurately Each channel of the P2000 delivers more than 500 watts continuous average power into 8 ohms 800 watts into 4 ohms and 1 000 watts into 2 ohms over the full audio frequency range In the bridge mode the amplifier can deliver more than 1 600 watts into 8 ohms and 2 000 watts into 4 ohms at less than 1 THD The power supply with its large toroidal transformer gives the amplifier impressive headroom and current output The P2000 contains 32 high power output de vices with 8 000 watts of dissipation capability These devices are protected from overheating by four three speed temperature sensitive fans The fans are quiet enough to permit use of the P2000 in noise sensitive applications such as recording studios and houses of worship The out
7. Elecio Voice CHAO O O O E access 2 c c SPECIFICATIONS Voltage Gain 1 kHz Any Mode Constant Conditions Gain Option 1 0 dBu 0 775 V rms 26 dB 2 Dual mode ratings are for each channel both operating unless noted 3 120 volt ac line voltage maintained throughout testing Continuous Rated Output Power 20 20 000 Hz at less than 0 1 THD both channels driven per EIA RS 490 Dual Mode 2 Ohms 1 000 watts Bridged Mode 4 Ohms 2 000 watts Dual Mode 4 Ohms 800 watts Bridged Mode 8 Ohms 1 600 watts Dual Mode 8 Ohms 500 watts Continuous Rated Output Power 1 kHz 1 THD both channels driven per EIA RS 490 Dual Mode 2 Ohms 1 200 watts Bridged Mode 4 Ohms 2 400 watts Dual Mode 4 Ohms 900 watts Bridged Mode 8 Ohms 1 800 watts Dual Mode 8 Ohms 560 watts Power Bandwidth 0 1 dB reference 1 kHz Any Mode 4 Ohms 10 30 000 Hz Frequency Response 0 3 dB reference 1 kHz 1 watt 10 30 000 Hz Input Sensitivity 1 kHz Dual Mode for 800 Watts into 4 Ohms 0 dBu 775 mV Maximum Input Level reference 1 kHz 20 dBu 7 75 V Input Impedance per channel 20 20 000 Hz Balanced 20 kilohms Phase Response at rated power any mode 10 30 000 Hz 22 5 degrees THD Plus Noise at 1 kHz at rated power measurement bandwidth 80 kHz lt 0 01 IMD SMPTE 60 Hz 7 kHz typical at rated power see Figure 2 lt 0 01 DIM 30 compo
8. d protect LED s for each channel Front panel controls shall include a power switch and level controls that shall be calibrated detented potentiometers and have accurate markings The amplifier shall have a constant gain option that with input level con trols full clockwise provides a 26 dB voltage gain that is identical to that of all Electro Voice Precision Series power amplifiers The power amplifier shall meet the following performance specifications maximum input voltage 7 75 V rms rated output power from 20 20 000 Hz at less than 0 196 THD each channel 500 watts into 8 ohms 800 watts into 4 ohms 1 000 watts into 2 ohms 1 600 watts bridged into 8 ohms and 2 000 watts bridged into 4 ohms hum and noise at least 100 dB A weighted below rated output power fre quency response 10 30 000 Hz 0 3 dB at any output power up to rated output power damping factor 2300 at any frequency up to 1 kHz in any mode with an 8 ohm load THD total harmonic distortion 0 0596 at 1 kHz at rated power transientintermodulation distortion DIN 30 or DIN 100 0 0196 crosstalk 70 dB below rated output power Dimensions shall be 132 5 mm 5 25 in x 483 mm 19 0 in x 426 mm 16 8 in hwd Net weight shall be 30 kg 66 Ib Color gray The power amplifier shall be the Electro Voice P2000 UNIFORM LIMITED WARRANTY Electro Voice products are guaranteed against malfunction due to defects in materials or work manship fo
9. e 4 ARCHITECTS AND ENGINEERS SPECIFICATIONS The power amplifier shall be a dual channel model of solid state design employing high power output devices in a true complementary symmetry output circuit It shall be capable of operating from a 120 200 220 240 V 50 60 Hz ac line The power amplifier shall contain a modern limiter circuit with switchable time con stants to protect the load from damage by amplifier clipping The amplifier shall contain sensing circuitry to provide protection for the output transistors against overtemperature excessive output voltage radio frequency interference shorted loads excessive phase shift and back EMF current The load shall be similarly protected against infrasonic signals start up shutdown transients low line voltage and Rear mounted panel controls shall include an input routing switch for selecting dual stereo or parallel mono operation a switch for turning the infrasonic and ultrasonic filters on or off a switch for selecting dual stereo or bridged op eration and a switch for selecting fast or slow speed for the built in limiters Input connections for each channel shall include a 3 pin female XLR type connector wired in parallel with a male 3 pin XLR output connector for signal routing Output connectors shall be Neutrik Speakon NLAMP s for channels A and B and for bridged operation Front panel indicators shall include power on input present output limit an
10. idental and Consequential Damages Excluded Product repair or replacement and return to the cus tomer are the only remedies provided to the customer Electro Voice shall not be liable for any incidental or consequential damages in INPUT SIGN PRESENT cluding without limitation injury to persons or property or loss of use Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation orexclusion may not apply to you Other Rights This warranty gives you specific legal rights and you may also have other rights which vary from state to state Electro Voice Electronics are guaranteed against malfunction due to defects in materials or workmanship for a period of three 3 years from the date of original purchase Additional details are included in the Uniform Limited Warranty statement Service and repair address for this product Electro Voice Inc 600 Cecil Street Buchanan Michigan 49107 616 695 6831 or 800 234 6831 Specifications subject to change without notice
11. put devices are mounted to a massive extruded aluminum heat sink that is engineered to minimize thermal gradients and allow the amplifier to operate safely into low impedance loads The output devices have a maximum junction temperature of 200 C 392 F so high operational temperatures present problems The output devices are mounted directly to the heat sink without mica insulators to ensure better dissipation of heat Many electronic circuit innovations exist in the P2000 Among the most novel of these circuits is the Mirrored Frontend Power Supply Bridge This design ensures complete symmetry for each bridged amplifier and both signal polari ties and eliminates asymmetrical rise and fall times The Dual Differential Discrete Topology is part of the front end of the amplifier and uses discrete electrical components instead of inte grated circuits to help the P2000 achieve its phenomenally low distortion The P2000 has sophisticated protection cir cuits that guard it and the load from problems Protection circuits guard against overload overtemperature shorted outputs radio fre quency interference and dc faults The output devices are protected against damage from reverse feeding of electrical energy back EMF and are switched on via relays to avoid tran sients which could damage speakers The P2000 has built in limiters to protect speak ers from the deleterious effects of amplifier clipping The limiter s
12. r a specified period as noted in the individual product line statement s below orin the individual product data sheet or owner s manual beginning with the date of original purchase If such malfunction occurs during the specified period the product will be repaired or replaced at our option without charge The product will be returned to the customer pre paid Exclusions and Limitations The Lim ited Warranty does not apply to a exterior finish or appearance b certain specific items described in the individual product line statement s below or in the individual product data sheet or owner s manual c malfunction resulting from use or operation of the product FIGURE 4 P2000 Block Diagram other than as specified in the product data sheet or owner s manual d malfunction re sulting from misuse or abuse of the product or e malfunction occurring at any time after re pairs have been made to the product by anyone other than Electro Voice or any of its authorized service representatives Obtaining Warranty Service To obtain warranty service a cus tomer must deliver the product prepaid to Electro Voice or any of its authorized service representatives together with proof of purchase of the product in the form of a bill of sale or receipted invoice A list of authorized service representatives is available from Electro Voice at 600 Cecil Street Buchanan MI 49107 616 695 6831 or 800 234 6831 Inc
13. site square sine wave band limited to 30 000 Hz lt 0 01 DIM 100 composite square sine wave band limited to 100 000 Hz lt 0 01 Rise Time 10 to 90 at rated power any mode lt 2 5 microseconds Slew Rate Any Mode gt 35 V microsecond Damping Factor Any Mode gt 300 Amplifier Protection Excessive output voltage shorted loads excessive phase shift rf interference overtemperature excessive back EMF In rush current limiter 1 Configured for constant gain option all Precision Series amplifiers regardless of power rating have a maximum voltage gain of 26 dB P2000 Precision Series Power Amplifier 560 watts per channel at 8 ohms 900 watts per channel at 4 ohms 1 200 watts per channel at 2 ohms e Neutrik Speakon output connectors allow use of heavy gauge speaker wire for low loss connections e Extremely low lt 0 01 dynamic distortion ensures excellent sound quality Three year parts and labor warranty Load Protection Start up shutdown transients dc fault infrasonic signals low ac line voltage nonlinear signal limiter Output Topology True complementary symmetry with ungrounded collectors no mica insulators means better heat transfer Output Devices Total Number 32 devices P max Rating 250 watts collector current 20 amps dc 200 C 392 F Controls and Switches Rear Hi Lo Cut Filter On Off Bridged Mode switch Bridged Normal Limiter mode
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