Model: Macro-Tech 5000VZ Some models may be exported under the name Amcron.® ©2003 by Crown Audio, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A. Telephone: 574-294-8000. Fax: 574-294-8329. Trademark Notice: PIP, SmartAmp 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.
3 YEAR THREE YEAR FULL WARRANTY 3 YEAR WORLDWIDE NORTH AMERICA SUMMARY OF WARRANTY The Crown Audio Division of Crown International, Inc., 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A.
Macro-Tech 5000VZ 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 accordance with the manufacturer’s instructions. 8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
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 maintenance. 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 Technical Support Group 1718 W. Mishawaka Rd.
Macro-Tech 5000VZ Power Amplifier CONTENTS 1 Welcome ................................................................................. 8 1.1 Why So Much Power? ....................................................... 8 1.2 Unpacking ........................................................................ 8 1.3 Features ........................................................................... 9 2 Facilities ................................................................................ 10 3 Installation .
Macro-Tech 5000VZ Power Amplifier Contents continued... 9 Service .................................................................................. 43 9.1 Worldwide Service .......................................................... 43 9.2 North American Service .................................................. 43 9.2.1 Service at a North American Service Center ........ 43 9.2.2 Factory Service .................................................... 43 ILLUSTRATIONS 1.1 2.1 2.2 2.3 2.4 2.5 3.1 3.2 3.3 3.
Macro-Tech 5000VZ Power Amplifier Fig. 1.1 Macro-Tech 5000VZ Amplifier 1 Welcome Congratulations on your purchase of a Macro-Tech® 5000VZ.® You have selected one of the most reliable, powerful and cost-effective professional amplifiers ever made. From now on, you can enjoy the advantages of having the highest level of innovation available in any amplifier at any price. The Macro-Tech 5000VZ is the most advanced amplifier to offer Crown’s patented Variable Impedance (VZ) power supply technology.
Macro-Tech 5000VZ Power Amplifier 1.3 Features The Macro-Tech 5000VZ uses the very latest technology and miniaturized design to provide the highest power and value for its size, weight and price. Its patented Grounded Bridge™ circuitry offers many advantages over conventional designs. In Stereo mode, the amplifier’s separate high-voltage supplies and ultra-low crosstalk make it possible to treat each channel as an independent amplifier.
Macro-Tech 5000VZ Power Amplifier 2 Facilities Fig. 2.1 Front Facilities A. Dust Filters The dust filters remove large particles from air drawn in by the cooling fans. Check the filters regularly to prevent clogging (see Sections 3.2 and 4.5). B. Level Controls The output level for each channel is set with these convenient front panel level controls. Each control has 31 detents for precise adjustment (see Section 4.4). A security option is also available to prevent tampering (see Section 8.2). C.
Macro-Tech 5000VZ Power Amplifier Fig. 2.2 Front Facilities behind the Filter Grille mode for each power supply. The switches are located behind the top dust filter about 1.75 inches (4.5 cm) behind the front panel. Always turn off the power before changing either switch. To access the VZ mode switches, remove the top dust filter and reach upward through the grille opening with a long narrow nonconductive object like a plastic pen. The switches are easy to locate with the aid of a flashlight.
Macro-Tech 5000VZ Power Amplifier Fig. 2.3 Rear Facilities N. Output Connectors P. Balanced Phone Jack Inputs This high-current output block is provided for output connection. Its connectors accept banana plugs, spade lugs or bare wire. The detachable output cover (S) shown in Figure 2.5 is used to protect against accidental short circuits and dangerous electrical shock.
Macro-Tech 5000VZ Power Amplifier 3 Installation 3.1 Mounting The Macro-Tech 5000VZ is designed for standard 19 inch (48.3 cm) rack mounting and “stack” mounting without a cabinet. For optimum cooling and rack support, multiple units should be stacked directly on top of each other. Important: Always support the back of the unit. Provide extra support if the unit will be transported. Fig. 3.1 Mounting Dimensions 3.2 Cooling NEVER block the air vents in the front or back of the amplifier.
Macro-Tech 5000VZ Power Amplifier 3.3 Wiring The following instructions describe the most common ways to install your amplifier in a sound system. The input and output terminals are located on the back panel. 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 personal injury or damaged loads from careless amplifier use or deliberate overpowering.
Macro-Tech 5000VZ Power Amplifier Note: A method for paralleling multiple amplifiers for fail-safe redundancy is available from Crown’s Technical Support Group. Note: The Channel 2 input jack and level control are disconnected in Bridge-Mono mode. A signal feeding Channel 2 will have no effect on the output. 3.3.2 Bridge-Mono Operation Bridge-Mono mode is intended for driving loads with a total impedance of 4 ohms or more (see Section 3.3.3 if the load is less than 4 ohms).
Macro-Tech 5000VZ Power Amplifier 3.3.3 Parallel-Mono Operation Parallel-Mono mode is intended for driving loads with a total impedance of less than 4 ohms (see Section 3.3.2 if the load is 4 ohms or greater). Installing the amplifier in Parallel-Mono mode is different from the other modes and requires special attention. CAUTION: Do NOT operate the amplifier in Stereo or Bridge-Mono mode until the Parallel-Mono jumper is removed. Failure to do so will result in high distortion and excessive heating.
Macro-Tech 5000VZ Power Amplifier 3.3.4 Input Connection Both the XLR and ¼-inch phone jack inputs are balanced. They have a minimum impedance of 10 K ohms (5 K ohms with unbalanced wiring) and will accept the line-level output of most devices. The XLR connectors and phone jacks are provided on the standard PIP2-FXQ input module (other PIP and PIP2 modules are described in Section 8.1).
Macro-Tech 5000VZ Power Amplifier SOLVING INPUT PROBLEMS Sometimes large infrasonic (subaudible) frequencies are present in the input signal. This can cause output clipping and off-center woofer cone movement. As a result, the loudspeakers may handle less power and could be damaged by overload or excess heat. To reduce the risk of such problems, turn on the Loudspeaker Offset Integration (LOI) for each channel. The LOI switches are located on the back panel of the amplifier.
Macro-Tech 5000VZ Power Amplifier .0002 .0002 Use Good Connectors RS Source Resistance (Ohms) .0004 .0006 1. To prevent possible short circuits, do not expose the loudspeaker cable connectors. .001 2. Do not use connectors that might accidentally tie two channels together when making or breaking connections (for example, a standard three-wire stereo phone plug). RL RS Damping Factor .002 20,000 .004 10,000 .006 .01 3.
Macro-Tech 5000VZ Power Amplifier 2. Lace together the loudspeaker conductors for each channel (do not lace together the conductors from different channels). This minimizes the chance that cables will act like antennas and transmit or receive high frequencies that can cause oscillation. 3. Avoid using shielded loudspeaker cable. There are basically two approaches that can be taken when installing fuses for loudspeaker protection. A common approach is to put a single fuse in series with 1.0 1.2 1.4 1.
Macro-Tech 5000VZ Power Amplifier the output of each channel. This makes installation convenient because there is only one fuse protecting the loads on each output. The main disadvantage of this approach becomes apparent if the fuse blows, because none of the loads will receive any power. than 11% above the amplifier’s rated line voltage will activate the overvoltage protection circuitry (refer to Section 4.3.2).
Macro-Tech 5000VZ Power Amplifier 4 Operation 4.1 Precautions The Macro-Tech 5000VZ is protected from internal and external faults, but you should still take the following precautions for optimum performance and safety: 4.2 Indicators The Macro-Tech 5000VZ has several internal indicators that can be used to help to identify a problem that causes a power supply to be put in “standby.” These indicators are described in Section 4.3.2. 1.
Macro-Tech 5000VZ Power Amplifier Fig. 4.
Macro-Tech 5000VZ Power Amplifier with a 0.1 second hold delay to show that an input signal is too large and must be compressed at the input. The indicators will also stay on brightly for a channel that is put in standby mode (see Section 4.3.2). Under abnormal operating conditions, a high-voltage power supply may be put in standby mode to prevent amplifier damage. If this happens, the channel’s Signal/IOC indicator will stay on with full brightness.
Macro-Tech 5000VZ Power Amplifier The undervoltage protection circuitry can also activate the standby mode. If the AC line voltage drops to about 20% or more below the unit’s rated voltage, both channels will go into standby to prevent loudspeaker damage that can result from brownouts and blackouts.
Macro-Tech 5000VZ Power Amplifier The high-voltage power supplies are also protected by internal fuses. With rated loads and output levels, a fuse should only shut down its channel in the rare instance of a catastrophic amplifier failure. Other protection systems like ODEP keep the amplifier operational under most other severe conditions. A fuse can also shut down its channel if an extremely low-impedance load and high output level result in current draw that exceeds the fuse rating.
Macro-Tech 5000VZ Power Amplifier nal (if it is turned on). If an input signal has too much voltage, the input overload circuitry will light the IOC indicator brightly, and the compressor will compress the input signal regardless of the COMPRESSOR switch position. The OFF setting bypasses all drive sources for the compressors except for input overload. When the COMPRESSOR switch is set to FAST, the compressors have an attack time of 4 milliseconds and a release time of 300 milliseconds.
Macro-Tech 5000VZ Power Amplifier 5 Technical Information 5.1 Overview Your Macro-Tech VZ amplifier incorporates several new technological advancements including low-stress output stages, real-time simulation of output transistor conditions, advanced thermal management, a modular system for signal input and processing, multispeed compressors, Loudspeaker Offset Integration, split feedback paths, modular internal construction and articulated VZ power supplies.
Macro-Tech 5000VZ Power Amplifier VZ POWER SUPPLY POWER TRANSISTOR sipate. Also, the lower the resistance of the power transistors, the more voltage you can deliver to the load. But at the same time that you lower the resistance of the transistors, you increase the current passing through them, and again increase the amount of heat they must dissipate. + POWER SUPPLY SPEAKER LOAD – POWER TRANSISTOR Fig. 5.1 A Typical Power Supply 5.2.
Macro-Tech 5000VZ Power Amplifier Fig. 5.
Macro-Tech 5000VZ Power Amplifier a reduction in gain of the balanced input stage at the onset of clipping in the output stage. The compressor is also activated any time the first stage is about to be overdriven. The compressor control circuit also sends signals to the display module to indicate IOC or input overload. The variable gain stage (U100B) sets the input sensitivity. Switch S100 is used to select 26 dB gain, 1.4 volts or 0.775 volts sensitivity for standard 1 kHz power.
Macro-Tech 5000VZ Power Amplifier steering diodes (D810 and D811) provide the two modes of the power supply. The VZ mode switch (S700) has four positions which control how the articulated supply functions. (Two of the four switch positions are identical because there are only three VZ modes.) In the VZ position, the supply will automatically change as needed depending on the signal demands. In the Lock Low position, the supply stays in high-current mode and cannot switch into high-voltage mode.
Macro-Tech 5000VZ Power Amplifier 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. All units have multitap transformers and can be configured for any AC line voltage. 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. Performance Frequency Response: ±0.
Macro-Tech 5000VZ Power Amplifier reserve energy. In the rare event that a channel has no reserve, its indicator will dim in proportion to ODEP limiting. An ODEP indicator may also turn off under other conditions (see Section 4.2). ILoad /ILimit: Each channel has a two-color (green/red) indicator that shows load current and limit current. They glow green to indicate load current flowing out the amplifier, and they turn red when maximum current is being delivered to the load.
Macro-Tech 5000VZ 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 when it is driven to full output under the given conditions.
Macro-Tech 5000VZ 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. The maximum power matrices include specifications for single cycle and 40 millisecond burst sine waves. Burst signals act like large transient peaks that are present in common source signals.
Macro-Tech 5000VZ Power Amplifier Fig. 6.3 Typical Frequency Response Fig. 6.4 Typical Damping Factor Fig. 6.
Macro-Tech 5000VZ Power Amplifier TEF ® Measurement +45˚ 0˚ –45˚ 100 TEF ® 1K 10 K 20 K FREQUENCY (Hz) Fig. 6.6 Typical Phase Response –60 TEF ® Measurement –66 –72 –78 dB –84 –90 –96 100 TEF ® 1K 10 K 20 K FREQUENCY (Hz) Fig. 6.
Macro-Tech 5000VZ Power Amplifier 7 AC Power Draw and Thermal Dissipation This section provides detailed information about the amount of power and current drawn from the AC power line by the Macro-Tech 5000VZ, and the amount of heat produced under various conditions. The calculations presented here are intended to provide a realistic and reliable depiction of the amplifier.
Macro-Tech 5000VZ Power Amplifier 8 Accessories 8.1 PIP Modules One advantage of Macro-Tech amplifiers is the ability to customize them using PIP (Programmable Input Processor) and PIP2 modules. The MA-5000VZ amplifier is equipped with ribbon cables that will connect either directly, or via the PIP2 adapter to a PIP module. The modules install easily. P.I.P.–EDCb combines a sophisticated error-driven compressor and smooth limiter with a maximum level setting and a subsonic filter for each channel.
Macro-Tech 5000VZ Power Amplifier P.I.P.–ISO is designed especially for 25 to 140 volt distributed systems where UL®-listed isolation is required. Installation requires minor amplifier modifications. With the P.I.P.–ISO installed, the amplifier outputs are safely isolated from the input terminals and the chassis. P.I.P.–ATNB uses balanced 1:1 transformers to isolate the amplifier from the input signal.
Macro-Tech 5000VZ Power Amplifier 8.2 Level Control 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 channel. They can be ordered through the Crown Service/Parts Department. For more information, contact the Crown Service Department. Fig. 8.
Macro-Tech 5000VZ Power Amplifier 9 Service This unit has very sophisticated circuitry which should only be serviced by a fully trained technician. This is one reason why each unit bears the following label: CAUTION: To prevent electric shock, do not remove covers. No user serviceable parts inside. Refer servicing to a qualified technician. Factory Service Shipping Instructions: 1.
Crown Factory Service Information Shipping Address: Crown Factory Service, 1718 W. Mishawaka Rd.
