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p. 1

Table Of Contents

How To Use This Manual

p.2

Introduction
Terms & Conventions

Installation

p.3

Unpacking
Mounting
Cooling Requirements

Additional Guidelines

Maintenance

Features Overview

p.7

Front Panel
Rear Panel

Operation Modes

p.13

Stereo
Parallel
Bridged

Connections

p.15

Power
Input
Output

Safety

p.19

User Responsibility
Speaker Protection
Protection Circuitry

Service, Support & Warranty

p.23

Support
Contact Crest
Warranty

Specifications

p.25

Block Diagram

p.26

Wire Gauge Chart

p.27

Contents

Appendices

Содержание PRO 200 SERIES

Страница 1: ...PRO 200 Series Amplifier Owner s Manual ...

Страница 2: ...ymbole est utilisé dans ce manuel pour indiquer à l utilisateur la présence d une tension dan gereuse pouvant être d amplitude suffisante pour constituer un risque de choc électrique Ce symbole est utilisé dans ce manuel pour indiquer à l utilisateur qu il ou qu elle trouvera d impor tantes instructions concernant l utilisation et l entretien de l appareil dans le paragraphe signalé ATTENTION Risq...

Страница 3: ...ll servicing to qualified service personnel Servicing is required when the device is damaged in any way such as liquid has been spilled or objects have fallen into the device the unit has been exposed to rain or moisture does not operate normally or has been dropped 15 Never break off the ground pin Connect only to a power supply of the type marked on the unit adjacent to the power supply cord 16 ...

Страница 4: ......

Страница 5: ...idelines Maintenance Features Overview p 7 Front Panel Rear Panel Operation Modes p 13 Stereo Parallel Bridged Connections p 15 Power Input Output Safety p 19 User Responsibility Speaker Protection Protection Circuitry Service Support Warranty p 23 Support Contact Crest Warranty Specifications p 25 Block Diagram p 26 Wire Gauge Chart p 27 b c a Contents Appendices ...

Страница 6: ...tor life Pro 200 Series models 8200 7200 and 5200 use CrestAudio s innovative Power Density cir cuitry and packaging Although these amplifiers are simple to operate and housed in ultra strong steel chassis improper use can be dangerous These are very high powered amplifiers that can put out high voltages and sizable currents at frequencies up to 30 kHz Always use safe operating techniques with the...

Страница 7: ...king Mounting Cooling Requirements Additional Guidelines Maintenance What to do with the shipping carton Proper rack mounting technique Keeping the amplifier cooled Tips for trouble free operation Routine maintenance practices ...

Страница 8: ...ies amplifiers will mount in standard 19 racks Rear mounting ears are also provided for additional support which is recommended in non permanent instal lations like mobile or touring sound systems Because of the cables and connectors on the rear panel a right angle or offset screwdriver or hex key will make it easier to fasten the rear mounting ears to the rails Front Width 19 483mm Front Panel 82...

Страница 9: ...that may have built up inside When used in an environment where residue from smoke fog machines is regular ly present the amplifier s should be periodically checked by authorized Crest ser vice personnel for build up of that residue Users will not need to make any adjustments to the amplifier during its lifetime There are no user serviceable parts or adjustments that require opening the unit Addit...

Страница 10: ......

Страница 11: ...p 7 Features Overview 3 Front Panel Rear Panel Controls and Connectors Legend of Panel Symbols ...

Страница 12: ...flashing quickly and intermittently the channel is at its clip threshold A steady bright glow means the unit is clip limiting or reducing gain to pre vent severely clipped wave forms from reaching the speakers During ini tial power up theACL LED will light to indicate that theAuto Ramp gain reduction circuitry is activated This will prevent sudden signal bursts when the speaker relays are closed 4...

Страница 13: ...rational It lights under normal operation and remains on even when the channel is inACL gain reduction These protection features leave the output relay closed If theActive LED goes off there will be no signal at the output connector s 8Airflow Outlet Grille Pro 200 Series amplifiers are cooled by dual variable speed rear mounted fans Cool air flows over the heat sink and exhausts through the front...

Страница 14: ...lect switch determines whether the amplifier has an overall gain of 40x 32 dB or 20x 26 dB The OUT position will select x40 The IN position will select x20 3 Mode Select Switch The rear panel Mode Select Switch determines whether the amplifier is in stereo parallel or bridged mono mode Do not operate the Mode Select Switch with the amplifier on See Chapter 4 for more information on operation modes...

Страница 15: ...annel In Bridged Mono mode the Speakon connector for ChannelA is used exclusively Note Both Binding Post and Speakon output connectors may be used at the same time Both sets are are parallel to each other so if you use them together be sure calculate the total impedance for each channel For example If you connect a 4 ohm load to the binding posts on channel A and another 4 ohm load via the Speakon...

Страница 16: ......

Страница 17: ...p 13 Operation Modes 4 Stereo Parallel Bridged Choosing the appropriate mode Switching between operation modes Special considerations when using bridged mode ...

Страница 18: ...s in the stereo mode Bridged Mono Both amplifier channels can be bridged together to make a very pow erful single channel monaural amplifier Use extreme caution when operating in the bridged mode as potentially lethal voltage may be pre sent at the output terminals To bridge the amplifier turn the power off and set the rear panel mode select switch to the bridge position Apply the signal to Channe...

Страница 19: ...p 15 Connections 5 Power Input Output Connecting the amplifier toAC power Proper signal paths Stereo Parallel Bridged Mono Proper wiring schemes for output connectors ...

Страница 20: ... 230Vac 50Hz for rated power output safe operating range 200 264Vac Note Due to the nature of the switching power supplies in the Pro 200 Series 50 60Hz operation is acceptable for either option above Very high current is available at the outputs Please connect your output cable to the and terminals of each sec tion precisely as shown a Stereo Parallel Female XLR Bridged Mono TRS pinouts Speaker t...

Страница 21: ...p 17 Connections 5 A A B B A A B Bridged Mono A Stereo Mode 5 way binding post connectors Parallel Mode 5 way binding post connectors Bridged Mono Mode 5 way binding post connectors ...

Страница 22: ...r to PIN 1 1 2 1 2 1 A A B Speaker to PIN 1 Speaker to PIN 1 1 2 1 2 1 A Speaker to PIN 1 Speaker to PIN 2 1 2 1 2 1 Bridged Mono Stereo Mode Speakon output connectors Parallel Mode Speakon output connectors Bridged Mono Mode Speakon output connectors ...

Страница 23: ...p 19 Safety 6 User Responsibility Speaker Protection Protection Features The owner s role in amplifier safety Protecting your speakers Description of protection features ...

Страница 24: ...g Fuses may also be used to limit power to speaker drivers although as current limiting rather than voltage limiting devices Some poor quality fuses have a significant series resistance that could degrade the amplifier s damping of the speaker s motion and may even deteriorate the system s sound quality If you elect to use fuses check with the speaker manufacturer to deter mine the proper current ...

Страница 25: ... Impedance Sensing Pro 200 Series amplifiers feature innovative circuitry that allows safe operation into any load When an amplifier sees a load that overstresses the output stage the Instantaneous Gain Modulation IGM circuit adjusts the channel gain to a safe level This method of out put stage protection is far superior to the conventional brute force type limiting found on other amplifiers The I...

Страница 26: ...es out of a protect mode the Auto Ramp circuit activates While the speakers are disconnected theAuto Ramp circuit fully attenuates the signal After the output relay closes the signal slowly and gradually rais es up to its set level The Auto Ramp Signal Control circuit has some important advan tages over the conventional instant on circuits 1 If a signal is present during power up or when coming ou...

Страница 27: ...p 23 Service Support Warranty 7 When to get support Ways to contact CrestAudio Support Contact Crest Warranty ...

Страница 28: ...ntact your nearest Crest Audio Service Center Distributor Dealer or any of the worldwide Crest Audio offices For those with Internet access please visit the CrestAudio web site Contact Crest Customer Service Phone 201 909 8700 USA Fax 201 909 8744 USA Email customerserve crestaudio com Technical Support Phone 201 909 8700 USA Fax 201 587 0550 USA Email techserve crestaudio com Web Site www crestau...

Страница 29: ...1 150W 1kHz at 0 05 T H D 1 600W 1kHz at 0 05 T H D 300W 1kHz at 0 005 T H D 625W 1kHz at 0 05 T H D 880W 1kHz at 0 05 T H D 2Ω 2Ω 2Ω 52 volts 75 volts 90 volts 10Hz 100kHz 0 3dB 10Hz 100kHz 0 3dB 10Hz 100kHz 0 3dB 10Hz 60kHz 0 3dB 10Hz 50kHz 0 3dB 10Hz 50kHz 0 3dB 300 1 20Hz 1kHz 300 1 20Hz 1kHz 300 1 20Hz 1kHz 85 dB 1kHz 85 dB 1kHz 85 dB 1kHz 1 12 volts 3 1 58 volts 3 1 87 volts 3 2 24 volts 3 3...

Страница 30: ... C A STEREO B PARALLEL C BRIDGE B ATTENUATOR Channel A Inputs Phoenix Combicon 1 4 TRS Female 3 Pin XLR Phoenix Combicon 1 4 TRS Female 3 Pin XLR Channel A Outputs 5 Way Binding Posts Neutrik Speakon 5 Way Binding Posts Neutrik Speakon Channel B Inputs Channel B Outputs SEE SECTION 5 FOR OUTPUT CONNECTION DETAILS ...

Страница 31: ...5 4 6 4 3 2 9 1 45 0 87 0 55 0 37 8 2 5 6 2 9 1 74 1 09 0 73 15 5 10 8 5 6 3 4 2 2 1 45 0 5mm2 0 75 1 5 2 5 4 6 8 24 5 6 2 9 1 74 1 09 0 73 5 5 10 8 5 6 2 9 1 74 1 09 28 19 9 10 8 6 7 4 3 2 9 0 75mm2 1 5 2 5 4 6 10 15 5 8 2 5 1 3 2 2 2 1 31 0 73 15 5 9 8 6 3 4 3 2 6 45 28 18 2 12 0 8 2 5 1 2meters 5meters 10meters 30meters Wire Gauge Power Loss 8Ω load 4Ω load 2Ω load ...

Страница 32: ...14 12 10 1 61 1 02 0 64 0 40 0 25 3 2 2 0 1 28 0 80 0 51 6 2 4 0 2 5 1 60 1 01 18AWG 16 14 12 10 8 6 2 4 0 2 5 1 60 1 01 0 60 11 9 7 7 5 0 3 2 2 0 1 20 22 14 6 9 6 6 2 4 0 2 4 18AWG 16 14 12 10 8 11 9 7 7 5 0 3 2 2 0 1 20 22 14 6 9 6 6 2 4 0 2 4 37 26 17 8 11 8 7 7 4 7 5feet 10feet 40feet 80feet Wire Gauge Power Loss 8Ω load 4Ω load 2Ω load ...

Страница 33: ...http www crestaudio com Pro 200Owner s Manual Version 1 1 11 02 ...

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