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Macro-Tech 600, 1200 & 2400
Macro-Tech 601, 1201 & 2401
Some models may be exported under the name Amcron
©2003 by Crown Audiol, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A. Telephone: 574-294-8000.
Fax: 574-294-8329. Trademark Notice: SmartAmp, PIP and Grounded Bridge are trademarks and
Amcron, Crown, Macro-Tech, IOC, ODEP, IQ System, and P.I.P. are registered trademarks of Crown
International, Inc. Other trademarks are the property of their respective owners.
Approved for
THX Theatre
Systems
Models:
®
.
130252-1A
3/03
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Table of Contents
Related Manuals for Crown Macro-Tech MA-1200
Summary of Contents for Crown Macro-Tech MA-1200
- Page 1 Macro-Tech 601, 1201 & 2401 Some models may be exported under the name Amcron ©2003 by Crown Audiol, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A. Telephone: 574-294-8000. Fax: 574-294-8329. Trademark Notice: SmartAmp, PIP and Grounded Bridge are trademarks and Amcron, Crown, Macro-Tech, IOC, ODEP, IQ System, and P.I.P.
- Page 2 Warranty. ITEMS EXCLUDED FROM THIS CROWN WARRANTY This Crown Warranty is in effect only for failure of a new Crown product which occurred within the Warranty Period. It does not cover any product which has been damaged because of any intentional misuse, accident, negligence, or loss which is covered under any of your insurance contracts.
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Page 3: Magnetic Field
Nor does it cover every possible situation which may arise during installation, operation or mainte- nance. If your unit bears the name “Amcron,” please substitute it for the name “Crown” in this manual. If you need special assistance beyond the scope of this manual, please contact our Technical Support Group. -
Page 4: Table Of Contents
5.2.1 Stereo Operation ... 24 5.2.2 Bridge-Mono Operation ... 26 5.2.3 Parallel-Mono Operation ... 26 6 Specifications ... 27 7 AC Power Draw & Thermal Dissipation ... 36 8 Accessories ... 38 8.1 PIP Modules ... 38 8.2 Cooling Fan Options ... 40 8.3 Level Control Security Kit ... - Page 5 Macro-Tech 600/1200/2400 Power Amplifiers Macro-Tech Amplifier ... 7 Front Panel Controls & Indicators ... 8 Rear Panel Controls & Connectors ... 9 Mounting Dimensions ... 10 Top View of a Rack-Mounted Unit ... 10 Proper Air Flow in a Rack Cabinet ... 10 Stereo Wiring ...
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Page 6: Important Safety Instructions
1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water. 6) Clean only with a damp cloth. 7) Do not block any of the ventilation openings. Install in accordance with the manufacturer’s instructions. 8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that pro- duce heat. -
Page 7: Welcome
Only you, the consignee, may initiate a claim for shipping damage. Crown will be happy to cooperate fully as needed. Save the shipping carton as evidence of damage for the shipper’s inspection. -
Page 8: Controls, Indicators & Connectors
This push button is used to turn the amplifier on and off. When turned on, the output is muted for approximately four seconds to protect your system from start-up tran- sients. (This delay can be changed. Contact Crown’s Technical Support Group for details.) G. Power Cord The power cord has an appropriate plug for the re- quired voltage. -
Page 9: Rear Panel Controls & Connectors
The phone jacks can be wired for either balanced (tip, ring and Reference Manual Fig. 2.2 Rear Panel Controls & Connectors sleeve) or unbalanced (tip and sleeve) input signals. Because they are electrically in parallel with the PIP in-... -
Page 10: Installation
3 Installation 3.1 Mounting Macro-Tech amplifiers are designed for standard 19-inch (48.3-cm) rack mounting and “stack” mounting without a cabinet. For more efficient cooling and extra support in a rack, it is recommended that units be stacked directly on top of each other. Important: If the unit will be transported, it should also be securely supported at the back of the rack. -
Page 11: Wiring
Please use care when making connections, selecting signal sources and controlling the output level. The load you save may be your own! Crown assumes no liability for damaged loads resulting from careless amplifier use or deliberate overpowering. -
Page 12: Bridge-Mono Operation
3.3.2 Bridge-Mono Operation Bridge-Mono mode is intended for driving loads with a total impedance of 4 ohms or more (If the load is less than 4 ohms, see Section 3.3.3). Installing the amplifier in Bridge-Mono mode is very different from the other modes and requires special attention. -
Page 13: Parallel-Mono Operation
Parallel-Mono mode is intended for driving loads with a net impedance of less than 4 ohms. (See Bridge-Mono if the load is 4 ohms or greater.) Installing the amp in Parallel-Mono mode is very different from the other modes and requires special attention. -
Page 14: Input Connection
3.3.4 Input Connection Both the balanced XLR and phone jack inputs have a nominal impedance of 20 k ohms (10 k ohms with un- balanced wiring) and will accept the line-level output of most devices. Female three-pin XLR input connectors are provided on the standard P.I.P.- FX input module (other PIP modules are described in Section 8.1). -
Page 15: Infrasonic Filter Capacitors
Frequency 4. Turn the entire system off before changing connections. Turn level controls down completely before powering the system back up. Crown is not liable for damage incurred when any transducer or component is overdriven. 910 Ω .003 Balanced In Balanced Out µ... -
Page 16: Output Connection
3.3.5 Output Connection Consider the power-handling capacity of your load be- fore connecting it to the amplifier. Crown is not liable for damage incurred at any time due to overpowering. Fus- ing loudspeaker lines is highly recommended (see Sec- tion 3.3.6). -
Page 17: Inductive Load (Transformer) Network
(Under these circumstances, Crown’s IQ System amplifiers can be monitored and controlled when they are located very near the loudspeakers.) In recording studios and home hi-fi, a damping factor of 500 or more is very desir- able. -
Page 18: Additional Load Protection
3.3.6 Additional Load Protection Macro-Tech amplifiers generate enormous power. If your loudspeakers do not have built-in protection from excessive power, it’s a good idea to protect them. Loud- speakers are subject to thermal damage from sus- tained overpowering and mechanical damage from large transient voltages. -
Page 19: Operation
9. Tampering with the circuitry by unqualified person- nel, or making unauthorized circuit changes invali- dates the warranty. Remember: Crown is not liable for damage that results from overdriving other system components. 4.2 Indicators The amber Enable indicator is provided to show that... -
Page 20: Macro-Tech Odep & Signal/Ioc Indicator States
This can greatly aid in deter- mining the source of problems. Please contact your lo- cal Crown representative or our Technical Support Group for futher assistance. Reference Manual... -
Page 21: Protection Systems
To do this, Crown established a rigorous program to measure the safe operating area (SOA) of each output transistor before installing it in an amplifier. Next, Crown designed intelligent circuitry to simulate the instanta- neous operating conditions of those output transistors. -
Page 22: Fuses And Circuit Breakers
4.3.4 Fuses and Circuit Breakers The power supplies of the Macro-Tech 600 and 1200 are protected by fuses. The power supplies of the Macro-Tech 2400 are protected by circuit breakers. With rated loads and output levels, the fuses (or circuit breakers) should only shut down the amplifier in the rare instance of a catastrophic failure. -
Page 23: Filter Cleaning
Macro-Tech 600/1200/2400 Power Amplifiers standard 1-kHz power, the middle position provides 26 dB gain, and the back position sets the sensitivity to 0.775 volts for standard 1-kHz power. 5. Replace the PIP module and reconnect the power to the amplifier. The Ground Lift switch is located on the back panel and can provide isolation between the input signal grounds and the AC (chassis) ground. -
Page 24: Technical Information
5 Technical Information 5.1 Overview Your Macro-Tech amplifier incorporates several new technological advancements including real-time com- puter simulation of output transistor stress, low-stress output stages, an advanced heat sink embodiment and the Programmable Input Processor (PIP) expansion system. Custom circuitry is incorporated to limit temperature and current to safe levels, making it highly reliable and tolerant of faults. -
Page 25: Circuit Block Diagram
Macro-Tech 600/1200/2400 Power Amplifiers Fig. 5.1 Circuit Block Diagram Reference Manual Page 25... -
Page 26: Bridge-Mono Operation
(+) back panel 5-way binding posts, twice the voltage can be output. The Channel 1 output feeds the Channel 2 error amp U204-A. Because there is a net inversion, the chan- nel 2 output is out of polarity with Channel 1. This pro- duces twice as much voltage across the load. -
Page 27: Specifications
Macro-Tech 600/1200/2400 Power Amplifiers 6 Specifications The following applies to units in Stereo mode with 8-ohm loads and an input sensitivity of 26 dB gain unless otherwise specified. Standard 1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.1% THD. Full Bandwidth Power: refers to maximum average power in watts from 20 Hz to 20 kHz with 0.1% THD. - Page 28 Refer to Section 4.3. Turn On: Four-second delay with no dangerous tran- sients. Contact Crown’s Technical Support Group to change the turn-on delay time. Construction Steel chassis with durable black finish, aluminum front panel with Lexan overlay, and specially designed flow- through ventilation from front to side panels.
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Page 29: Macro-Tech 600 Minimum Power Matrix
When measuring power, 0.1% THD appears to be the industry standard for distortion. Two of the maximum average power specifications shown in each minimum power matrix are measured at 0.1% THD so you can easily compare Crown specifica- tions to those of other manufacturers. But this high level of distortion actually allows for some clipping which is undesirable. -
Page 30: Macro-Tech 1200 Minimum Power Matrix
Macro-Tech 600/1200/2400 Power Amplifiers Fig. 6.2 Macro-Tech 1200 Minimum Power Matrix Fig. 6.3 Macro-Tech 2400 Minimum Power Matrix Page 30 Reference Manual... -
Page 31: Macro-Tech 600 Maximum Power Matrix
Maximum Power Specifications Crown’s maximum power specifications represent the largest amount of output power you can expect from your amplifier when it is driven to full output under the given conditions. These specifications can be used to prevent loudspeaker and hearing damage. -
Page 32: Macro-Tech 1200 Maximum Power Matrix
Macro-Tech 600/1200/2400 Power Amplifiers Fig. 6.5 Macro-Tech 1200 Maximum Power Matrix Fig. 6.6 Macro-Tech 2400 Maximum Power Matrix Page 32 Reference Manual... -
Page 33: Typical Frequency Response
Macro-Tech 600/1200/2400 Power Amplifiers –1 –2 –3 –4 –5 –6 –7 1400 1200 1000 504.0 126.8 MILLIOHMS 31.8 Reference Manual FREQUENCY (Hz) Fig. 6.7 Typical Frequency Response FREQUENCY (Hz) Fig. 6.8 Typical Damping Factor FREQUENCY (Hz) Fig. 6.9 Typical Output Impedance 8 ohm 1 watt 4 ohm... -
Page 34: Typical Phase Response
Measurement +45˚ 0˚ –45˚ Measurement –51 –57 –63 –69 –75 –81 Fig. 6.11 Typical Crosstalk for the Macro-Tech 600 Page 34 Macro-Tech 600/1200/2400 Power Amplifiers ® FREQUENCY (Hz) Fig. 6.10 Typical Phase Response ® FREQUENCY (Hz) 10 K 20 K 10 K 20 K Reference Manual... -
Page 35: Typical Crosstalk For The Macro-Tech 1200
Macro-Tech 600/1200/2400 Power Amplifiers –66 –72 –78 –84 –90 –96 –102 Fig. 6.12 Typical Crosstalk for the Macro-Tech 1200 –60 –66 –72 –78 –84 –90 –96 Fig. 6.13 Typical Crosstalk for the Macro-Tech 2400 Reference Manual ® 10 K FREQUENCY (Hz) ®... -
Page 36: Ac Power Draw & Thermal Dissipation
7 AC Power Draw and Thermal Dissipation This section provides detailed information about the amount of power and current drawn from the AC mains by the Macro-Tech 600 , 1200 and 2400 amplifiers and the amount of heat produced under various conditions. The calculations presented here are intended to pro- vide a realistic and reliable depiction of the amplifiers. -
Page 37: Macro-Tech 1200 Power Draw, Current Draw And Thermal Dissipation At Various Duty Cycles
Macro-Tech 600/1200/2400 Power Amplifiers Fig. 7.2 Macro-Tech 1200 Power Draw, Current Draw and Thermal Dissipation at Various Duty Cycles Fig. 7.3 Macro-Tech 2400 Power Draw, Current Draw and Thermal Dissipation at Various Duty Cycles Reference Manual Page 37... -
Page 38: Accessories
® IQ–P.I.P. –MEM is PIP2-compatible and integrates the amplifier into Crown’s patented IQ System. The IQ System provides com- puter control of 1 to 2000 amplifiers. For example, each amplifier channel can be monitored and controlled from a personal com- puter attached to an IQ System. - Page 39 RPA–RMT. Other features include bus inputs and outputs, adjustable input sensitivity, phantom power and RFI suppression. Input isolation transformers are optional. For more information on these or other PIP s under de- velopment, contact your local dealer or Crown’s Tech- nical Support Group. Page 39...
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Page 40: Cooling Fan Options
Two optional re- placement fan blades are available for special cooling requirements. Crown part C 6594-3 is a quieter, low- velocity fan blade that in many cases can provide ad- equate cooling. Crown part C 6593-5 is a reverse... -
Page 41: Service
Ac- cessories are not needed—do not send the instruction manual, cables and other hardware. If you have any questions, please call or write the Crown Technical Support Group. Crown International Technical Support / Factory Service 1718 W. - Page 42 Crown Factory Service Information Shipping Address: Crown Factory Service, 1718 W. Mishawaka Rd., Elkhart, IN 46517 Phone: 1-800-342-6939 or 1-574-294-8200 Fax: 1-574-294-8124 Owner’s Name: _________________________________________________________________________ Shipping Address: ______________________________________________________________________ Phone Number: ______________________________ Model: _________________________ Serial Number: ______________ Purchase Date: ____________ (Be sure to describe the conditions that existed when the problem occurred and what attempts were made to correct it.)