ODEPCH1 CH2POWEROFFODEPCH1 CH2POWEROFFModels:Micro-Tech 600, 1200 & 2400Micro-Tech 601, 1201 & 2401Some models may be exported under the name

Page 10Micro-Tech 600/1200/2400 Power Amplifiers3 Installation3.1 MountingMicro-Tech amplifiers are designed for standard 19-inch (48.3 cm) rack moun

Page 11Micro-Tech 600/1200/2400 Power Amplifiersthe rack so it blows outside air into the space betweenthe door and the front of the amplifiers. This

Page 12Micro-Tech 600/1200/2400 Power AmplifiersCAUTION: In Stereo mode, never tie the amplifier’soutputs directly together, and never parallel themw

Page 13Micro-Tech 600/1200/2400 Power AmplifiersCAUTION: Only connect balanced equipment(meters, switches, etc.) to the Bridge-Mono output.Both sides

Page 14Micro-Tech 600/1200/2400 Power Amplifiers3.3.4 Input ConnectionThe balanced phone jack inputs have a nominal im-pedance of 20 K ohms (10 K ohm

Page 15Micro-Tech 600/1200/2400 Power AmplifiersSOLVING INPUT PROBLEMSSometimes large subsonic (subaudible) frequenciesare present in the input signa

Page 16Micro-Tech 600/1200/2400 Power Amplifiersconductors that could bisect the magnetic field.Ground loops will also occur when the input and out-p

Page 17Micro-Tech 600/1200/2400 Power Amplifiers1. Note the load resistance of the loudspeakers connectedto each channel of the amplifier. Mark this

Page 18Micro-Tech 600/1200/2400 Power AmplifiersA better approach is to fuse each driver independently.This allows you to apply the most appropriate

Page 19Micro-Tech 600/1200/2400 Power Amplifiers4 Operation4.1 PrecautionsAlthough your amplifier is protected from internal andexternal faults, you

WORLDWIDESUMMARY OF WARRANTYThe Crown Audio Division of Crown International, Inc., 1718 WestMishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrant

Page 20Micro-Tech 600/1200/2400 Power Amplifiers4.3.4 Transformer Thermal ProtectionAll Micro-Tech amplifiers have transformer thermal pro-tection. T

Page 21Micro-Tech 600/1200/2400 Power Amplifiers4.4 ControlsThe power switch is located on the front panel so youcan easily turn the amplifier on or

Page 22Micro-Tech 600/1200/2400 Power Amplifiers5 Technical Information5.1 OverviewMicro-Tech amplifiers incorporate several technologi-cal advanceme

Page 23Micro-Tech 600/1200/2400 Power AmplifiersFAULTONLY ONE CHANNEL SHOWNNPN HIOUTPUTSTAGENPN LOWOUTPUTSTAGEPNP LOWOUTPUTSTAGEPNP HIOUTPUTSTAGERED(

Page 24Micro-Tech 600/1200/2400 Power AmplifiersFrom the error amp, the voltage translator stage routesthe signal to the Last Voltage Amplifiers (LVA

Page 25Micro-Tech 600/1200/2400 Power Amplifiers6 SpecificationsThe following applies to units in Stereo mode with with both channelsdriven into 8 oh

Page 26Micro-Tech 600/1200/2400 Power AmplifiersControlsPower: A front panel rocker switch used to turn the ampli-fier on and off.Level: A back panel

Page 27Micro-Tech 600/1200/2400 Power AmplifiersCrown specifications are guaranteed for three years.In an effort to provide you with as much informat

Page 28Micro-Tech 600/1200/2400 Power AmplifiersFig. 6.3 Micro-Tech 2400 Minimum Power Matrix82Micro-Tech 2400 – Minimum Guaranteed Power (Watts)Ste

Page 29Micro-Tech 600/1200/2400 Power AmplifiersMaximum Power SpecificationsCrown’s maximum power specifications represent the largest amount of outp

Printed onrecycled paper.WATCH FOR THESE SYMBOLS:The lightning bolttriangle is used toalert the user to therisk of electric shock.The exclamation poin

Page 30Micro-Tech 600/1200/2400 Power Amplifiers82Stereo(both channelsdriven)Bridge-Mono(balanced output)Parallel-Mono116446855003201,3951,0406651,34

Page 31Micro-Tech 600/1200/2400 Power AmplifiersFig. 6.7 Typical Frequency ResponseFig. 6.8 Typical Damping FactorFig. 6.9 Typical Output Impedanc

Page 32Micro-Tech 600/1200/2400 Power AmplifiersTECHRONTEF®+45˚0˚–45˚100 1 K 10 K 20 KFREQUENCY (Hz)100 1 K 10 K 20 KFREQUENCY (Hz)dBTECHRONTEF®–81–7

Page 33Micro-Tech 600/1200/2400 Power Amplifiers–102100 1 K 10 K 20 KFREQUENCY (Hz)dBTECHRONTEF®–96–90–84–78–72–66100 1 K 10 K 20 KFREQUENCY (Hz)dBTE

Page 34Micro-Tech 600/1200/2400 Power AmplifiersHere are the equations used to calculate the data pre-sented in Figures 7.1, 7.2 and 7.3:AC Mains Pow

Page 35Micro-Tech 600/1200/2400 Power AmplifiersFig. 7.2 Micro-Tech 1200 Power Draw, Current Draw andThermal Dissipation at Various Duty Cycles8 Ohm

Page 36Micro-Tech 600/1200/2400 Power Amplifiers8 Accessories8.1 Cooling Fan OptionsEvery Micro-Tech amplifier has a built-in high-velocityfan that p

Page 37Micro-Tech 600/1200/2400 Power Amplifiers9 ServiceThis unit has very sophisticated circuitry which shouldonly be serviced by a fully trained t

Detach and send with unit.Crown Factory Service InformationShipping Address: Crown International, Inc., Factory Service, Plant 2 SW, 1718 W. Mishawaka

Page 4Micro-Tech 600/1200/2400 Power AmplifiersCONTENTS1 Welcome ... 71.1 Unpa

Page 5Micro-Tech 600/1200/2400 Power AmplifiersILLUSTRATIONS1.1Micro-Tech Amplifier ...

Page 6Micro-Tech 600/1200/2400 Power Amplifiers

Page 7Micro-Tech 600/1200/2400 Power Amplifiers1 WelcomeCongratulations on your purchase of a Micro-Tech®professional power amplifier. Crown’s Micro-

Page 8Micro-Tech 600/1200/2400 Power AmplifiersFig. 2.1 Front FacilitiesODEPCH1 CH2POWEROFFAB CC D2 FacilitiesA. Filter GrilleThis metal grille supp

Page 9Micro-Tech 600/1200/2400 Power AmplifiersFig. 2.2 Rear FacilitiesCAUTION:THIS COVER IS NECESSARY FOREFFICIENT COOLING OF THE AMPLIFIER.REMOVE