Macro-Tech 24x6 Скачать руководство пользователя

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Models: Macro-Tech

24x6 & 36x12

125782-3

3/00

© 2000 by Crown International, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A. Telephone: 219-294-
8000. Fax: 219-294-8329. Macro-Tech amplifiers are produced by the Professional Audio Division of Crown
International, Inc. Trademark Notice:

SmartAmp,

™

Grounded Bridge

™

and

PIP

™

are trademarks and

Amcron,

Crown,

Macro-Tech,

IOC,

ODEP,

IQ,

IQ System,

and P.I.P.

are registered trademarks of

Crown International, Inc. Other trademarks are the property of their respective owners.

Some models may be exported under the name

Amcron.

Содержание 24x6

Страница 1: ...ifiers are produced by the Professional Audio Division of Crown International Inc Trademark Notice SmartAmp Grounded Bridge and PIP are trademarks and Amcron Crown Macro Tech IOC ODEP IQ IQ System and...

Страница 2: ...nalpurchaser the warrantyperiod thatthenewCrownproductisfreeofdefectsinmaterials and workmanship We further warrant the new Crown product regardless of the reason for failure except as excluded in thi...

Страница 3: ...RISK OF ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE Magnetic Field CAUTION Do not locate sensitive high gain equipment such as preamplifiers or tape decks directly above or below...

Страница 4: ...ded plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience recepta...

Страница 5: ...tion Systems 18 4 3 1 ODEP 18 4 3 2 Standby Mode 19 4 3 3 Transformer Thermal Protection 19 4 3 4 Circuit Breakers 19 4 4 Controls 19 4 5 Filter Cleaning 20 5 Technical Information 21 5 1 Overview 21...

Страница 6: ...3 11 Wire Size Nomograph 14 3 12 Inductive Load Transformer Network 16 3 13 Loudspeaker Fuse Selector Nomograph 16 4 1 Indicators 17 4 2 ODEP and Signal IOC Indicator States 18 4 3 Input Sensitivity a...

Страница 7: ...ect condition as most do save all packing materials so you will have them if you ever need to transport the unit NEVER SHIP THE UNIT WITHOUT THE FACTORY PACK 1 2 Features Here are some of the impressi...

Страница 8: ...her IOC function is to indicate input overload If an input signal is too large the indicator for the affected channel flashes brightly with a 0 5 second hold delay to show clipping distortion D ODEP I...

Страница 9: ...e they are electrically in parallel with the PIP in put connectors input signals should not be connected to the phone jacks when certain PIP modules are in stalled see Section 3 3 1 The phone jacks ca...

Страница 10: ...ters etc to prevent rapid loading of the unit s own air filter When needed the unit s filter can be cleaned with mild dish detergent and water see Section 4 5 When mounting the amplifier in a rack cab...

Страница 11: ...l eliminate any chance of loud blasts or damage to the loudspeakers Because each channel produces a different power level the Macro Tech 24x6 and 36x12 are dedicated to Fig 3 4 Wiring a Macro Tech 36x...

Страница 12: ...ed Input Wiring Fig 3 7 Balanced and Unbalanced Phone Plug Wiring a standard tip ring sleeve TRS configuration the tip is positive the ring is negative and the sleeve is ground see Figure 3 7 Wiring f...

Страница 13: ...t energy and can drive loudspeakers to levels which can cause permanent hearing damage Crown is not liable for personal injury or damage incurred when a transducer or component is over driven Fig 3 10...

Страница 14: ...akers The latter problem occurs be cause the damping factor decreases as the cable Use Good Connectors 1 To prevent possible short circuits do not expose the loudspeaker cable connectors 2 Do not use...

Страница 15: ...wires can be used for the same effect SOLVING OUTPUT PROBLEMS Sometimes high frequency oscillations occur that can cause your amplifier to prematurely activate its protec tion circuitry which can res...

Страница 16: ...unless otherwise noted Speci fications were derived using a voltage that is accurate to within 0 5 with THD less than 1 0 under all testing conditions Performance variations can occur at other AC vol...

Страница 17: ...re event that there is no re serve the indicators turn off and ODEP proportionally limits the drive level of the output stages so the ampli fier can continue safe operation even when conditions are se...

Страница 18: ...dio output Possible reasons 1 There is no input signal 2 The input signal level is very low 3 The channel s level control is turned down ODEP SIGNAL IOC ON Normal Normal operation for a channel with a...

Страница 19: ...is excessive heat The switch automatically resets when the transformer cools to a safe temperature It is very unlikely that you will ever see a Macro Tech amplifier activate transformer thermal prote...

Страница 20: ...nly the phone jack inputs and has no affect on the PIP mod ule input connectors Sliding the switch to the left iso lates or lifts the grounds by placing an impedance between the sleeve of each input p...

Страница 21: ...nd PNP devices Each output stage has two composite NPN devices and two composite PNP devices The devices connected to the load are referred to as high side NPN and PNP and the devices connected to gro...

Страница 22: ...signed to prevent audible switching distor tion and yield the highest possible dynamic transfer function you hear only the music and not the amplifier You get not only the maximum power with the maxim...

Страница 23: ...iescent voltage D309 D310 D311 and a trim mer resistor set the quiescent current point for the bridge balanced output stage The protection mechanisms that affect the signal path are implemented to pro...

Страница 24: ...OWN NPN HI OUTPUT STAGE NPN LOW OUTPUT STAGE PNP LOW OUTPUT STAGE PNP HI OUTPUT STAGE OUTPUT Vcc Vcc TRANSLATOR LVA LVA Vcc Vcc BIAS CURRENT LIMIT TRANSLATOR BALANCE INPUT STAGE P I P BALANCED INPUTS...

Страница 25: ...acro Tech 36x12 Channel 1 3600 124 6 1 12 or 41 9 dB 1 0 dB Macro Tech 36x12 Channel 2 1200 64 1 12 or 36 dB 0 5 dB Power Output Power The following are guaranteed minimums for standard 1 kHz power at...

Страница 26: ...5 V and 1 4 V for rated output or a fixed voltage gain of 26 dB see Section 4 4 Output Signal Unbalanced two channel Output Connector A pair of color coded 5 way binding posts for banana plugs spade l...

Страница 27: ...Page 27 Reference Manual Macro Tech 24x6 36x12 Power Amplifiers Fig 6 1 Typical Frequency Response Fig 6 2 Typical Damping Factor Fig 6 3 Typical Output Impedance...

Страница 28: ...nual Macro Tech 24x6 36x12 Power Amplifiers TECHRON TEF 45 0 45 100 1 K 10 K 20 K FREQUENCY Hz Fig 6 4 Typical Phase Response Fig 7 1 Macro Tech 24x6 Power Draw Current Draw and Thermal Dissipation at...

Страница 29: ...c is 20 Duty cycle of continuous speech is 10 Duty cycle of infrequent short duration paging is 1 Here are the equations used to calculate the data pre sented in Figures 7 1 and 7 2 AC Mains Power Dra...

Страница 30: ...mplifier can be monitored and individu ally controlled from an inexpensive PC A total of 15 func tionscanbeeithermonitoredorcontrolled Memorybackup is also incorporated in case of power failure Requir...

Страница 31: ...ssor but a circuit to preventanyoverload Itcanyieldupto13dBoradditional signal safety margin without noticeable program change P I P EDCbState of the artprogrammableerror drivenand signal driven compr...

Страница 32: ...l Shaft Lock A security accessory the shaft lock can be used to secure your amplifier s level controls in situations where the front panel controls are subject to tampering One is needed for each chan...

Страница 33: ...warranty service we will pay for ground shipping both ways in the United States Contact Crown Factory Service or Technical Support to obtain prepaid ship ping labels prior to sending the unit Or if y...

Страница 34: ...________________ ______________________________________________________________________________ ______________________________________________________________________________ _________________________...

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