Crown Macro-Tech 3600VZ Reference Manual
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Crown Macro-Tech 3600VZ Reference Manual

Professional power amplifier
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Model:
Macro-Tech 3600VZ
Some models may be exported under the name Amcron .
®
©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,
™
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.
125113-3
4/00

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Summary of Contents for Crown Macro-Tech 3600VZ

  • Page 1 Model: Macro-Tech 3600VZ Some models may be exported under the name Amcron . ® ©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,...

  • Page 2: North America

    SUMMARY OF WARRANTY The Crown Audio Division of Crown International, Inc., 1718 West The Crown Audio Division of Crown International, Inc., 1718 West Mishawaka Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL...

  • Page 3: Magnetic Field

    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. Crown Audio Technical Support Group Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A.

  • Page 4: Important Safety Instructions

    Macro-Tech 3600VZ Power Amplifier 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 dry cloth. 7) Do not block any ventilation openings. Install in ac- cordance with the manufacturer’s instructions.

  • Page 5: Table Of Contents

    Macro-Tech 3600VZ Power Amplifier CONTENTS 1 Welcome ................7 1.1 Unpacking ..............7 1.2 Features ............... 8 2 Facilities ................9 3 Installation ............... 11 3.1 Mounting ..............11 3.2 Cooling ..............11 3.3 Wiring ................ 12 3.3.1 Stereo (Two-Channel) Operation ...... 12 3.3.2 Bridge-Mono Operation ........
  • Page 6 Macro-Tech 3600VZ Power Amplifier ILLUSTRATIONS Macro-Tech 3600VZ Amplifier ............ 7 Front Facilities ................9 Rear Facilities ................. 10 Mounting Dimensions .............. 11 Top View of a Rack-Mounted Unit ..........11 Proper Air Flow in a Rack Cabinet ........... 11 Stereo Wiring ................12 Bridge-Mono Wiring ..............

  • Page 7: Welcome

    Macro-Tech 3600VZ Power Amplifier Fig. 1.1 Macro-Tech 3600VZ Amplifier 1 Welcome Congratulations on your purchase of the Macro-Tech ® 1.1 Unpacking 3600VZ professional power amplifier. It is the first audio Please unpack and inspect your new amplifier for any amplifier to offer Crown’s patented Variable Impedance damage that may have occurred during transit.

  • Page 8: Features

    Macro-Tech 3600VZ Power Amplifier 1.2 Features ❏ Full protection against shorted outputs, open cir- The Macro-Tech 3600VZ amplifier uses the latest tech- cuits, mismatched loads, general overheating, high nology and miniaturized design to deliver the highest frequency overloads and internal faults; loudspeaker power and value for its size, weight and price.

  • Page 9: Facilities

    Macro-Tech 3600VZ Power Amplifier Fig. 2.1 Front Facilities 2 Facilities A. Dust Filter ergy. They dim proportionally as energy reserves de- The dust filters remove large particles from the air at the crease. In the event that energy reserves are depleted, air intake.

  • Page 10: Rear Facilities

    Macro-Tech 3600VZ Power Amplifier Fig. 2.2 Rear Facilities available to drive a single load with an impedance less L. Ground Lift Switch than 4 ohms. Important: Do NOT change this switch The input signal ground may be isolated from the AC...

  • Page 11: Installation

    Macro-Tech 3600VZ Power Amplifier 3 Installation 3.1 Mounting When mounting the amplifier in a rack cabinet, the side Macro-Tech amplifiers are designed for standard 19 inch (48.3 cm) rack mounting and “stack” mounting walls of the rack should be at least 2 inches (5 cm) away without a cabinet.

  • Page 12: Wiring

    Macro-Tech 3600VZ Power Amplifier 3.3 Wiring The following section describes common ways to in- 3.3.1 Stereo (Two-Channel) Operation stall your amplifier in a sound system. The input and The installation is very intuitive in Stereo mode. The in- output terminals are located on the rear panel. Please...

  • Page 13: Bridge-Mono Operation

    Macro-Tech 3600VZ Power Amplifier 3.3.2 Bridge-Mono Operation Bridge-Mono mode is intended for driving loads with a not defeated in Bridge-Mono mode. Any signal fed into net impedance of 4 ohms or greater. (See Parallel-Mono Channel 2 may work against and add to or distort the if the load is less than 4 ohms.) Installing the amplifier in...

  • Page 14: Parallel-Mono Operation

    Macro-Tech 3600VZ Power Amplifier 3.3.3 Parallel-Mono Operation Parallel-Mono mode is used to drive loads with a total Note: It is normal for the IOC indicator of Channel 2 to impedance of less than 4 ohms. (See Bridge-Mono if stay on in Parallel-Mono mode.

  • Page 15: Input Connection

    Macro-Tech 3600VZ Power Amplifier 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 XLR input connectors are pro- vided on the standard P.I.P.-FX input module (other PIP...

  • Page 16: Subsonic Filter Capacitors

    Macro-Tech 3600VZ Power Amplifier 910 Ω SOLVING INPUT PROBLEMS .003 Sometimes large subsonic (subaudible) frequencies Balanced In Balanced Out µ – – are present in the input signal. These can damage loud- 910 Ω speakers by overloading or overheating them. To at- 1.8 mH...

  • Page 17: Output Connection

    Macro-Tech 3600VZ Power Amplifier shielded pair cable is another effective way to reduce resistance increases. This is very important because or eliminate hum resulting from inductive coupling. the amplifier’s excellent damping factor can easily be negated by insufficient loudspeaker cables.

  • Page 18: Inductive Load (Transformer) Network

    Macro-Tech 3600VZ Power Amplifier 1. Note the load resistance of the loudspeakers connected 2. Avoid using shielded loudspeaker cable. to each channel of the amplifier. Mark this value on the 3. Avoid long cable runs where the loudspeaker “Load Resistance” line of the nomograph.

  • Page 19: Additional Load Protection

    Macro-Tech 3600VZ Power Amplifier The nomograph in Figure 3.15 shows fuse size versus 3.3.6 Additional Load Protection loudspeaker peak power rating. It can be used to deter- Because the amplifier generates enormous power, it mine the size of the required fuse.

  • Page 20: Operation

    Macro-Tech 3600VZ Power Amplifier 4 Operation 4.1 Precautions Although the Macro-Tech 3600VZ is protected from ex- ternal faults, the following precautions should be fol- lowed for safety and optimum operation: 1. There are important differences among the Ste- reo, Bridge-Mono and Parallel-Mono operating modes (see Section 3.3).

  • Page 21: Protection Circuits

    Macro-Tech 3600VZ Power Amplifier Fig. 4.2 Macro-Tech Indicator States amplifier’s performance. As input overload indicators, 4.3.1 Output Device Emulation Protection (ODEP) they flash brightly with a 0.5 second hold delay when Crown invented ODEP to solve two long standing prob-...

  • Page 22: Standby Mode

    Macro-Tech 3600VZ Power Amplifier Its name describes what it does: Output Device Emula- fier channel into standby mode in rare situations where tion Protection or ODEP . It not only simulates the opera- heavy common-mode current is detected in a channel’s tion of the output transistors but it also compares their output.

  • Page 23: Controls

    Macro-Tech 3600VZ Power Amplifier in situations where extremely low-impedance loads and sustained high output levels result in current draw that exceeds the breaker’s rating. Again, this should only be possible when operating outside rated conditions or when an input signal is clipped severely.

  • Page 24: Filter Cleaning

    Macro-Tech 3600VZ Power Amplifier The Circuit Breaker Reset Buttons (PUSH TO RESET) To clean, remove each of the filter elements by gently are located on the back panel to protect the power sup- pulling them away from the front panel. Clean with mild plies against overload.

  • Page 25: Technical Information

    The Grounded Bridge topology takes full advantage of technology is what makes it possible to pack such tre- the power supplies delivering peak-to-peak voltages to mendous power into Crown’s Macro-Tech 3600VZ and the load that are twice the voltage seen by the output 5000VZ amplifiers.

  • Page 26: The Vz Supply

    Macro-Tech 3600VZ Power Amplifier voltage require- Also, the lower the ments are not resistance of the high, it operates in power transistors, a parallel mode to the more voltage produce less volt- you can deliver to age and more cur- the load.

  • Page 27: Circuit Block Diagram

    Macro-Tech 3600VZ Power Amplifier Fig. 5.5 Circuit Block Diagram Reference Manual Page 27...

  • Page 28: Bridge-Mono Operation

    Macro-Tech 3600VZ Power Amplifier The input signal at the phone jack passes directly into To further protect the output stages, a specially devel- the balanced gain stage (U104-C,D). Use of a PIP mod- oped ODEP (Output Device Emulation Protection) cir- ule for input signal causes the input signal to pass cuit is used.

  • Page 29: Specifications

    Macro-Tech 3600VZ Power Amplifier 100 VAC International Units: 6 Specifications Stereo mode with both channels driven: These specifications apply to 120 VAC units in stereo 1460 watts into 2 ohms. mode with 8 ohm loads and an input sensitivity of 26 dB 1300 watts into 4 ohms.
  • Page 30 Macro-Tech 3600VZ Power Amplifier Controls Input Impedance: Nominally 20 k ohms, balanced. Nominally 10 K ohms, unbalanced. Enable: A front panel push button used to turn the am- plifier on and off. Input Sensitivity: Switchable between 0.775 V (unbal- anced) for rated output or a fixed voltage gain of 26 dB.
  • Page 31 Macro-Tech 3600VZ Power Amplifier Construction 120 VAC, 60 Hz Units: Net weight 55 lbs, 1.5 ounces (25.0 kg); shipping Durable black powder coated steel chassis and alumi- weight 63 lbs, 10 ounces (28.9 kg). num front panel with Lexan overlay; specially designed “flow-through”...

  • Page 32: Minimum Power Matrix

    Macro-Tech 3600VZ Power Amplifier Crown specifications are guaranteed for three years. In an effort to provide you with as much information as possible about the high power-producing capabilities of your amplifier, we have created the following power matrices. Minimum Guaranteed Power Specifications Crown’s minimum power specifications represent the absolute smallest amount of output power you can expect from your amplifier...

  • Page 33: Maximum Power Matrix

    Macro-Tech 3600VZ Power Amplifier 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 34: Typical Frequency Response

    Macro-Tech 3600VZ Power Amplifier –1 8 ohm 1 watt 4 ohm –2 2 ohm –3 –4 –5 –6 –7 10 K 100 K FREQUENCY (Hz) Fig. 6.3 Typical Frequency Response 1400 1200 1000 8 ohm 10 K 20 K FREQUENCY (Hz) Fig.

  • Page 35: Typical Phase Response

    Macro-Tech 3600VZ Power Amplifier ® Measurement +45˚ 0˚ –45˚ ® 10 K 20 K FREQUENCY (Hz) Fig. 6.6 Typical Phase Response (Measured with a TEF ® Analyzer) ® –60 Measurement –66 –72 –78 –84 –90 –96 ® 10 K 20 K FREQUENCY (Hz) Fig.

  • Page 36: Ac Power Draw And Thermal Dissipation

    Amplifier Efficiency amount of power and current drawn from the AC mains by the Macro-Tech 3600VZ , and the amount of heat pro- The quiescent power draw of 90 watts is typical, and duced under various conditions. The calculations pre- assumes the cooling fans are not running.

  • Page 37: Accessories

    Macro-Tech 3600VZ Power Amplifier 8 Accessories IQ-P.I.P.-MEM Integrates Crown PIP-compatible amplifiers into Crown’s IQ System. Each channel of each amplifier 8.1 PIP Modules can be monitored and individually controlled from an inex- One advantage of Crown PIP compatible amplifiers is pensive PC.
  • Page 38 Macro-Tech 3600VZ Power Amplifier P.I.P.-BEQC adds many features of the Bose ® Controllers P.I.P.-FXT uses balanced 1:1 transformers to isolate the to the input of your amplifier. Each channel includes a cus- source from the inputs. It comes with balanced female 3- tom equalization network for Bose loudspeakers.

  • Page 39: Level Control Security Kit

    Macro-Tech 3600VZ Power Amplifier 8.2 Level Control Shaft Lock A security accessory, the shaft lock can be used to se- cure your amplifier’s level controls in situations where the front panel controls are subject to tampering. One is needed for each channel.They can be ordered through the Crown Service/Parts Department.

  • Page 40: Service

    Macro-Tech 3600VZ Power Amplifier 9 Service This unit has very sophisticated circuitry which should Factory Service Shipping Instructions: only be serviced by a fully trained technician. This is 1. When sending a Crown product to the factory for one reason why each unit bears the following label:...
  • Page 41 Macro-Tech 3600VZ Power Amplifier Crown Factory Service Information Shipping Address: Crown Factory Service, Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, IN 46517 Phone: 1-800-342-6939 or 1-219-294-8200 Fax: 1-219-294-8124 Owner’s Name: _________________________________________________________________________ Shipping Address: ______________________________________________________________________ Phone Number: _____________________________ Fax Number: _____________________________...

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