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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.
®
©2001 by Crown Audio, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A. Telephone: 219-294-8000. Fax:
219-294-8329. 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.
Obtaining Other Language Versions:
To obtain information in another language about the use of this product, please contact your local Crown
Distributor. If you need assistance locating your local distributor, please contact Crown at 219-294-8200.
Note:
The information provided in this manual was deemed accurate as of the publication date. However,
updates to this information may have occurred. To obtain the latest version of this manual, please visit the
Crown website at www.crownaudio.com.
125113-4
3/01

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Summary of Contents for Macro-Tech 3600VZ

  • Page 1 Model: Macro-Tech 3600VZ Some models may be exported under the name Amcron. ® ©2001 by Crown Audio, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A. Telephone: 219-294-8000. Fax: 219-294-8329. Trademark Notice: SmartAmp, ™ PIP, ™ and Grounded Bridge ™ are trademarks and Amcron , ®...

  • Page 2: North America

    THREE YEAR FULL WARRANTY WORLDWIDE NORTH AMERICA SUMMARY OF WARRANTY 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.

  • Page 3: Magnetic Field

    The information furnished in this manual does not include all of the details of design, production, or variations of the equipment. 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: 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- diately. Only you, the consignee, may initiate a claim Tech 3600VZ to pack more power into a mere 3½ inches with the carrier for damage resulting during shipment. of vertical rack space than ever before. Because it’s a Crown will be happy to cooperate fully as needed.

  • Page 8: Features

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

  • Page 9: Facilities

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

    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 amplifiers may be operated in one of three Such connection does not result in increased power out- modes (Stereo, Bridge-Mono, and Parallel-Mono) by put and can cause premature activation of the protec- switching the Stereo/Mono switch on the rear panel.

  • 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 µ Balanced Out – – 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 the or eliminate hum resulting from inductive coupling. amplifier’s excellent damping factor can easily be ne- gated 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 3.3.6 Additional Load Protection Because the amplifier generates enormous power, it The nomograph in Figure 3.15 shows fuse size versus may be desirable to protect loudspeakers (or other sen- loudspeaker peak power rating. It can be used to deter- sitive loads) from damage due to excessive power.

  • 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

    To do this, Crown established a rigorous program to 4.3 Protection Circuits measure the safe operating area (SOA) of each output Macro-Tech amplifiers provide extensive protection and transistor before installing it in an amplifier. Crown also diagnostics capabilities. Protection systems include designed intelligent circuitry to simulate the instanta- ODEP, “standby,”...

  • Page 22: Standby Mode

    But reduces the system’s current demand during start-up. even when the limits of a Macro-Tech are exceeded, it protects itself—and your investment—from damage. If dangerous subsonic frequencies or direct current (DC) is detected in the amplifier’s output, the unit will...

  • Page 23: Controls

    Macro-Tech 3600VZ Power Amplifier tions where extremely low-impedance loads and sus- tained high output levels result in current draw that ex- ceeds 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) the unit will not cool as efficiently as it should and may are located on the back panel to protect the power sup- produce lower-than-normal output levels due to high plies against overload.

  • Page 25: Technical Information

    Grounded Bridge. technology is what makes it possible to pack such tre- The Grounded Bridge topology takes full advantage of mendous power into Crown’s Macro-Tech 3600VZ and the power supplies delivering peak-to-peak voltages to 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 power transistors, parallel the more voltage mode to pro- you can deliver to duce less volt- the load. But when age and more you lower the resis- current.

  • 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

    By setting the back panel Stereo/Mono switch to Bridge- Mono, the user can convert the Macro-Tech into a The bias servo Q318 is thermally coupled to the heat Bridge-Mono amplifier. With a signal applied to the...

  • Page 29: Specifications

    Macro-Tech 3600VZ Power Amplifier 6 Specifications 100 VAC International Units: 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 7.5 amp circuit breakers. Protection Indicators Macro-Tech amplifiers are protected against shorted, Enable: This amber indicator is on when the amplifier open or mismatched loads; overloaded power supplies; is switched on to show that the low voltage power sup- excessive temperature, chain destruction phenomena, ply is operating.
  • 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 ® –60 Measurement –66 –72 –78 –84 –90 –96 ® 10 K 20 K FREQUENCY (Hz) Fig. 6.7 Typical Crosstalk...

  • Page 36: Ac Power Draw And Thermal Dissipation

    AC mains The following equation converts power draw in watts to by the Macro-Tech 3600VZ, and the amount of heat pro- current draw in amperes: duced under various conditions. The calculations pre- sented here are intended to provide a very realistic and reliable depiction of the amplifier.

  • 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.-FMX facilitates “daisy-chaining” several amplifier bal- to the input of your amplifier. Each channel includes a cus- anced inputs together. Female to Male 3-pin XLR connec- tom equalization network for Bose loudspeakers. Also in- tors are used to passively bridge the amplifier inputs.

  • 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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