Crown 180MA Mix Amplifier 80W Commercial Operation Manual

Crown 180MA Mix Amplifier 80W Commercial

Introduction

Welcome
The Crown® 180MA, 280MA and 1160MA are high-value mixer-amplifiers for commercial and industrial audio. They provide 4-ohm and constant-voltage outputs (70V and 100V). The mixer-amps are part of Crown’s Commercial Audio Series, which also includes mixers and power amplifiers. These low-cost units provide all necessary features in a simple buildingblock format.

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 574-294-8000.
• 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.
• 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.

Trademark Notice : Crown, Crown Audio and Amcron are registered trademarks of Crown International. Other trademarks are the property of their respective owners.

Important Safety Instructions

• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with a dry cloth.
• Do not block any ventilation openings.
• Install in accordance with the manufacturer’s instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other.
• A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety.
• If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
• Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
• Only use attachments/accessories specified by the manufacturer.
• Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Refer all servicing to qualified service personnel.
• Servicing is required when the apparatus has been damaged in any way, such as powersupply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
• WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
• THIS APPARATUS TO RAIN OR MOISTURE.
• DO NOT EXPOSE TO DRIPPING OR SPLASHING.
• DO NOT PLACE OBJECTS FILLED WITH LIQUID, SUCH AS VASES,ON THIS APPARATUS.
• TO PREVENT ELECTRIC SHOCK DO NOT REMOVE
• TOP OR BOTTOM COVERS. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO
• TO COMPLETELY DISCONNECT THIS EQUIPMENT
• FROM THE AC MAINS, DISCONNECT THE POWER
• SUPPLY CORD PLUG FROM THE AC RECEPTACLE.
• THE MAINS PLUG OF THE POWER SUPPLY
• CORD SHALL REMAIN READILY OPERABLE.

WATCH FOR THESE SYMBOLS:

• The lightning bolt triangle is used to alert the user to the risk of electric shock.
• The exclamation point triangle is used to alert the user to important operating or maintenance instructions.

IMPORTANT
Commercial Audio Series mixer-amplifiers require Class 2 output wiring.

MAGNETIC FIELD
CAUTION!

• Do not locate sensitive high-gain equipment such as preamplifiers or tape decks directly above or below the unit.
• Because this amplifier has a high power density, it has a strong magnetic field which can induce hum into unshielded devices that are located nearby.
• The field is strongest just above and below the unit.
• If an equipment rack is used, we recommend locating the amplifier(s) in the bottom of the rack and the preamplifier or other sensitive equipment at the top.

Features

• 4 to 8 inputs, 1 to 2 amplifier output channels
• Ideal for commercial and industrial use
• Expandable by adding Crown Commercial
• Audio mixers or Commercial Audio power amplifiers (when available)
• Balanced Phoenix-type mic/line inputs; touch-proofed screw-terminal speaker outputs
• Independent Bass and Treble controls on each input
• Any input can be sent to any output
• Priority muting
• Advanced protection system includes output current limiting, DC protection, circuit breaker/ fuse, and thermal protection. Details available online at www.crownaudio.com.
• Three-Year, No-Fault, Fully Transferable
• Warranty completely protects your investment and guarantees its specifications

Controls Panel

Front Panel Controls and Indicators

• A. Input Signal Presence Indicator
  • Green LED, one for each input channel, illuminates when input signal exceeds –24 dBu (line) or –70 dBu (mic).
• B. Input Volume Controls
  • Microphone/line, four in 180MA and 1160MA, eight in 280MA. Detented potentiometers with knobs.
• C. Output Volume Controls
  • One per output channel. Detented potentiometer with knob.
• D. Output Signal Presence Indicator
  • Green LED, one for each output channel, illuminates when output signal level exceeds 100 mV (45 dB below full power) from the 4-ohm tap. Does not respond to signals from the AMP INPUT connector
• Clip Indicator
  • Red LED, one per output channel, illuminates at threshold of audible distortion. Does not respond to signals from the AMP INPUT connector.
• F. Power Indicator
  • Blue LED indicates power on.
• G, H. Tone Controls
  • Bass and Treble non-detented potentiometers on each input channel. Bass ±10 dB at 100 Hz, Treble ±10 dB at 10 kHz.
• I. Power Switch
  • Pushbutton on-off switch. The power switch does not affect the 24V DC auxiliary power input (letter “K” on next page).

Back Panel Controls and Connectors

• J. Reset Switch
  • Resets the circuit breaker that protects the power supply.
  • 220/230/240V units have a fuse instead.
• K. Auxiliary Power Input
  • 2-position terminal strip for 24 VDC (±10%) backup power.
  • Accepts up to 10 AWG terminal forks.
• L. Amplifier Outputs Connectors
  • One per channel, 4-position terminal strip with COM (Common), 4 ohms, 70V and 100V terminals. Accepts up to 14 AWG terminal forks. Non-touch cover included.
• M. Amp Config Switch
  • A DIP switch with two functions:
  • Assigns one of the inputs as the priority input for each output, thereby temporarily muting the remaining inputs. Muting is activated by contact closure.
  • Global enable switch for phantom power. Does not affect RCA inputs. Default position is off.
• N. Input Routing Switch (280MA only)
  • DIP switches that assign each input signal to each output.
  • Two switches per input.
• O. Link In/Out Switch
  • Slide switch, one per channel. With the Link Switch IN, any signal applied to the Amp Input connector will be mixed with the input signal(s). With the Link Switch OUT, only the signal from the Amp Input Connector will appear at the amplifier output.
  • The tone generator has been omitted. Call Crown Tech Support if you have a tone generator question.
• P. Mic/Line Input Connector
  • 3-pin Phoenix-type, balanced, one per input channel.
• Q. Mic/line Switch
  • Selects mic-level or line-level input signals. One switch for each balanced input.
• R. Dual RCA Input Connector
  • For stereo music signals, unbalanced, summed together, two connectors per input channel. If required, both the mic/ line and RCA inputs may be used at the same time. The mic/ line gain switch does not affect the RCA gain, which is fixed relative to mic/line. The mic/line and RCA signals are mixed. Note: Other equipment connected to the RCA jacks should be connected to the same AC power source as the mixer-amp to avoid hum.
• S. AC Power Inlet
  • Detachable IEC.
• T. Priority Connector
  • 3-pin Phoenix-type connector allows Input 1 or Input 5 (280MA only) to mute other input signals by contact closure.
• U. Output VCA Connector
  • 4-pin Phoenix-type connector for one (180MA) or two (280MA) VCA control lines of +10 VDC and ground. Compatible with Crown 1-VCAP and 4-VCAP modules.
• V. Amp Input Connector
  • 3-pin Phoenix-type, high-impedance balanced, one per amplifier channel. Used to link an additional mixer to the mixer-amplifier. Or used to connect an external processor (see Section 2.9).
• W. Line Out Connector
  • One 3-pin balanced Phoenix-type connector per output channel. Post master, pre-VCA. Level controlled by master volume control.

Setup

Installation

Use a standard 19-inch (48.3 cm) equipment rack (EIA RS-310B). See Figure 2.1 for amplifier dimensions. You may also stack mixer-amps without using a cabinet, or you may place a single mixer-amp on a surface with 12 inches of air space around the unit for convection cooling.

NOTE : When transporting in a rack, mixer-amps should be supported at the front and back. When using an equipment rack, do not mount units directly on top of each other. Allow 2 U between units for convection cooling. The side walls of the rack should be a minimum of two inches (5.1 cm) away from the amplifier sides, and the back of the rack should be a minimum of four inches (10.2 cm) from the amplifier back panel..

When using an equipment rack, do not mount units directly on top of each other. Allow 2 U between units for convection cooling. The side walls of the rack should be a minimum of two inches (5.1 cm) away from the amplifier sides, and the back of the rack should be a minimum of four inches (10.2 cm) from the amplifier back panel

How to Attach Rack Ears

• Locate the two rack ears and two rack-ear screws supplied.
• See Figure 2.2. Remove the two screws from each side of the chassis near the front.
• Place a rack ear flush with the right front of the chassis.
• Insert a screw that you removed into the bottom hole of the rack ear and chassis. Screw it in.
• Insert a screw that you removed into the center hole of the rack ear and chassis. Screw it in.
• Insert one of the supplied screws into the top hole of the rack ear and chassis. Screw it in.
• Repeat steps 3-6 for the left side of the chassis.

Choose Input Wire and Connectors
Crown recommends using pre-built or professionally wired balanced line (two- conductor plus shield), 22-24 gauge cables and connectors. You should use 3-pin Phoenix-type cable ends at the amplifier inputs. Unbalanced line may also be used but may result in noise over long cable runs. Figure 2.3 shows connector pin assignments for balanced wiring, and Figure 2.4 shows connector pin assignments for unbalanced wiring. The RCA input connectors can also be used for unbalanced inputs.

Choose Output Wire and Connectors
For the amplifier output connectors, Crown recommends using pre-built or professionally wired, high-quality, two-conductor, heavy gauge speaker wire and connectors. You may use crimpon spade lugs for your output connectors (Figure 2.5). To prevent the possibility of short-circuits, wrap or otherwise insulate exposed loudspeaker cable connectors. Cover the output connections with the supplied non-touch cover. Using the guidelines below, select the appropriate size of wire based on the distance from amplifier to speaker. The wire sizes apply to the 4-ohm tap.

Distance Wire    Size

• up to 25 ft.    16 AWG
• 26-40 ft.       14 AWG
• 41-60 ft.       12 AWG
• 61-100 ft.     10 AWG
• 101-150 ft.    8 AWG
• 151-250 ft.    6 AWG

Wire Your System

Typical input and output wiring is shown in Figure 2.7 INPUTS: Connect microphones or balanced line-level sources to mixer-amplifier balanced inputs. Set Mic/Line switches accordingly. Connect unbalanced line-level signals to RCA input connectors. OUTPUTS: Maintain proper polarity (+/–) on output connectors. For each amplifier channel, connect the Amplifier Output screw terminals to the loudspeaker loads. Use terminals marked COM and 4 OHMS for a 4-ohm loudspeaker load, or use terminals marked COM and 70V or 100V for constant- voltage loudspeaker loads. Connect the COM terminal to speaker negative (–) lead; connect one of the other terminals to speaker positive (+) lead. For more application drawings, see the enclosed Commercial Audio Mixer- Amplifier Quick-Start Guide.

NOTE : Crown provides a reference of wiring pin assignments for commonly used connector types in the Crown Amplifier Application Guide available at www.crownaudio.

Input Routing

In the 280MA, any input can be assigned to Amp 1, Amp 2 or both. The two DIP switches labeled INPUT ROUTING are used (Figure 2.8). Follow the settings printed on the back panel next to the INPUT ROUTING switch. For example, to send input Channel 3 to Amp 1 and Amp 2, turn on DIP switches 13 and 14

Phantom Power To turn on phantom power on all mic inputs, turn on the switch number 7 in the AMP CONFIG DIP switch.

Priority Muting
A back-panel AMP CONFIG DIP switch (Figure 2.9) can assign Input Ch. 1 or Input Ch. 5 as the priority input for each amplifier output, which temporarily mutes the remaining inputs. Muting is activated by contact closures. For example, suppose you configured Channel 1 as the priority input. Mic 1 is plugged into Channel 1. A press-to-talk switch in Mic 1 is wired to the Priority connector in the mixer-amplifier. When you press the mic switch, all other signals are muted so you can make an announcement on Mic 1. One DIP- switch selection enables Channel 1 as the priority input, which mutes all other inputs to Amp 1. In the 280MA only, another DIP switch selection enables Channel 5 as the priority input, which mutes all other inputs to Amp 2. In the 280MA only, another set of DIP switches enable Channel 1 as the priority input into both Amp 1 and Amp 2, effectively muting any input.

To set the mixer-amplifier for normal mode with no priority:
Set the AMP CONFIG DIP switch as follows

• 1 ON
• 2 OFF
• 3 OFF
• 4 OFF
• 5 ON
• 6 OFF

To give priority to the Channel-1 input in Amp 1 only:
Set the AMP CONFIG DIP switch as follows:

• 1 OFF
• 2 ON
• 3 OFF
• 4 OFF

Also, wire a SPST switch to the PRIORITY connector between COM and CH 1 AMP 1. Close the switch when you want the Channel-1 input to mute all other inputs feeding Amp 1.

To give priority to the Channel-5 input in Amp 2 only:
Set the AMP CONFIG DIP switch as follows:

• 5 OFF
• 6 ON

Also, wire a SPST switch to the PRIORITY connector between COM and CH 5 AMP 2. Close the switch when you want the Channel-5 input to mute all other inputs feeding Amp 2.

To give priority to the Channel-1 input in Amp 1 and Amp 2:
Set the AMP CONFIG DIP switch as follows:

• 1 OFF
• 2 ON
• 3 ON
• 4 ON

Also, wire a SPST switch to the PRIORITY connector between COM and CH1 AMP 1. Close the switch when you want the Channel-1 input to mute all other inputs feeding Amp 1 and Amp 2.

Note : The routing configuration is extremely versatile. Many configurations for additional applications not highlighted in this document can be created by examining the signal flow in the block diagram on page 13.

Link In/Out Switches
These switches (Figure 2.10) affect which signals are heard when another mixer is wired to the mixer-amplifier. One switch is included per amplifier channel.

• IN : Any signal applied to the AMP INPUT connector will be mixed with the input signal(s).
• OUT : Only the signal from the AMP INPUT connector will appear at the amplifier output.

How to link another mixer to your mixer-amplifier:
Connect the extra mixer’s LINE OUT connector to the mixer-amplifier’s AMP INPUT connector. Set the Link switch to IN.

How to set up Music-On-Hold output:
Connect mixer-amp LINE OUT to Music-On-Hold input on telephone system interface/PBX. Set the LINK SWITCH to IN.

How to set up a processing loop:
Connect mixer-amp LINE OUT to processor input. Connect processor output to mixer-amp AMP INPUT connector. Set the Link switch to OUT.

Remote Volume Control
You can control the volume of each amplifier channel remotely. To do so, locate the OUTPUT VCA connector on the back panel. Insert a 4-pin Phoenix- type cable connector into the OUTPUT VCA connector. Wire a Crown

• 1-VCAP or 4-VCAP level control to the Phoenix-type cable connector terminals as shown in Figure 2.11.
• 1-VCAP controls one channel; 4-VCAP controls up to four channels

Powering Up

• Turn off any equipment connected to the Line Out connectors.
• Plug the amplifier’s power cord into a 3-wire grounded AC outlet.
• Turn down the input volume controls.
• Turn down the master volume control.
• Turn on the Power switch. The Power indicator should glow.
• Turn the input volume controls in use about 3/4 up.
• Turn up the master volume control(s) until the desired loudness or power level is achieved.
• Touch up the input levels as needed for equal loudness from each microphone.
• Turn on any equipment connected to the Line Out connectors.
• If you ever need to make any wiring or installation changes, disconnect the power cord.

Included Accessories

• Power cord
• Detachable rack ears
• Screws for rack ears
• Non-touch cover for output connectors
• Phoenix-type connectors
• Spade lugs

Optional Accessories

• 1-VCAP remote volume control for one channel
• 4-VCAP remote volume control for four channels

Block Diagram

Troubleshooting

CONDITION: No power to the mixer-amplifier.

POSSIBLE REASON

• The mixer-amplifier’s Power switch is off.
• The mixer-amplifier is not plugged into the power receptacle.
• The mixer-amplifier’s high-voltage power supply circuit breaker has tripped, or the fuse has opened on 220/230/240V models. Verify that the AC mains voltage is correct, then press the Reset button on the back panel.
• If the unit is operated from a 24V DC supply, the internal fuse may have opened. (The power switch has no effect on 24V operation.)

CONDITION: Distorted sound.

POSSIBLE REASON

• Input signal level is too high. Turn down your input volume controls. NOTE: Your mixeramplifier should never be operated at a level which causes the Clip LEDS to illuminate constantly.
• Master volume level is too high. Turn it down to about 3/4 of maximum level.

CONDITION: No sound.

POSSIBLE REASON

• The amplifier is in “fault” mode. A Fault status can be triggered when one of the amplifier’s protection circuits is activated.
• First disconnect your speakers from the affected channel(s) one by one to determine if one of the loads is shorted.
• If an amplifier channel has a thermal fault, there will be no indication on the front panel, but the amp will recover after cooling.
• If operation does not return to normal after restarting your amp, check the fuse and replace if necessary, or return mixer-amp to Crown or an authorized Crown Service Center for servicing.

No input signal.

• Input signal level is very low.

Specifications

Service

Crown amplifiers are quality units that rarely require servicing. Before returning your unit for servicing, please contact Crown Technical Support to verify the need for servicing. 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.

Complete the Crown Audio Factory Service Information form, in the back of this manual, when returning a Crown product to the factory or authorized service center. The form must be included with your product inside the box or in a packing slip envelope securely attached to the outside of the shipping carton. Do not send this form separately. Warranty is only valid within the country in which the product is purchased.

Worldwide Service
Service may be obtained from an authorized service center. (Contact your local Crown/Amcron representative or our office for a list of authorized service centers.) To obtain service, simply present the bill of sale as proof of purchase along with the defective unit to an authorized service center. They will handle the necessary paperwork and repair. Remember to transport your unit in the original factory pack.

US and Canada Service
Service may be obtained in one of two ways: from an authorized service center or from the factory. You may choose either. It is important that you have your copy of the bill of sale as your proof of purchase.

Service at a US or Canada Service Center
This method usually saves the most time and effort. Simply present your bill of sale along with the defective unit to an authorized service center to obtain service. They will handle the necessary paperwork and repair. Remem Remember to transport the unit in the original factory pack. A list of authorized service centers in your area can be obtained from Crown Factory Service, or online from http://www.crownaudio.com/support/servcent.htm.

Factory Service
Crown accepts no responsibility for non-serviceable product that is sent to us for factory repair. It is the owner’s responsibility to ensure that their product is serviceable prior to sending it to the factory. Serviceable product list is available at http://crownweb.crownintl.com/crownrma/.

For more information, please contact us direct. A Service Return Authorization (SRA) is required for product being sent to the factory for repair. An SRA can be completed online at www.crownaudio.com/support/factserv.htm. If you do not have access to the web, please call Crown’s Customer Service at 574.294.8200 or 800.342.6939 extension 8205 in North America, Puerto Rico and the Virgin Islands only. For warranty service, we will pay for ground shipping both ways in the United States. Contact Crown Customer Service to obtain prepaid shipping labels prior to sending the unit. Or, if you prefer, you may prepay the cost of shipping, and Crown will reimburse you. Send copies of the shipping receipts to Crown to receive reimbursement. Your repaired unit will be returned via UPS ground. Please contact us if other arrangements are required.

Factory Service Shipping Instructions

• Service Return Authorization (SRA) is required for product being sent to the factory for service.
• Please complete the SRA by going to www.crownaudio.com/support/factserv.htm
• If you do not have access to our website, call 1.800.342.6939, extension 8205 and we’ll create the SRA for you.
• See packing instructions that follow.
• Ship product to: CROWN AUDIO FACTORY SERVICE 1718 W MISHAWKA RD. ELKHART, IN 46517
• Use a bold black marker and write the SRA number on three sides of the box.
• Record the SRA number for future reference. The SRA number can be used to check the repair status.

Packing Instructions Important: These instructions must be followed. If they are not followed, Crown Audio, Inc. assumes no responsibility for damaged goods and/or accessories that are sent with your unit.

• Fill out and include the Crown Audio Factory Service Information sheet in the back of this manual.
• Do not ship any accessories (manuals, cords, hardware, etc.) with your unit. These items are not needed to service your product.
• We will not be responsible for these items. 3. When shipping your Crown product, it is important that it has adequate protection.
• We recommend you use the original pack material when returning the product for repair (Figure 9.1).
• If you do not have the original box, please call Crown at 800.342.6939 or 574.294.8210 and order new pack material.
• (Do not ship your unit in a wood or metal cabinet.)
• If you provide your own shipping pack, the minimum recommended requirements for materials are as follows:
  • 275 P.S.I. burst test, Double-Wall carton that allows for 2-inch solid Styrofoam on all six sides of unit or 3 inches of plastic bubble wrap on all six sides of unit.
  • Securely seal the package with an adequate carton sealing tape.
  • Do not use light boxes or “peanuts”.
  • Damage caused by poor packaging will not be covered under warranty.

Estimate Approval
Approval of estimate must be given within 30 days after being notified by Crown Audio Inc. Units still in the possession of Crown after 30 days of the estimate will become the property of Crown Audio Inc.

Payment of Non-Warranty Repairs
Payment on out-of-warranty repairs must be received within 30 days of the repair date. Units unclaimed after 30 days become the property of Crown Audio Inc. If you have any questions, please contact Crown Factory Service.

Warranty

SUMMARY OF WARRANTY
Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of each NEW Crown product, for a period of three (3) years from the date of purchase by the original purchaser (the “warranty period”) that the new Crown product is free of defects in materials and workmanship. We further warrant the new Crown product regardless of the reason for failure, except as excluded in this Warranty. Warranty is only valid within the country in which the product was purchased.

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. This Crown Warranty also does not extend to the new Crown product if the serial number has been defaced, altered, or removed.

WHAT THE WARRANTOR WILL DO
We will remedy any defect, regardless of the reason for failure (except as excluded), by repair, replacement, or refund. We may not elect refund unless you agree, or unless we are unable to provide replacement, and repair is not practical or cannot be timely made. If a refund is elected, then you must make the defective or malfunctioning product available to us free and clear of all liens or other encumbrances. The refund will be equal to the actual purchase price, not including interest, insurance, closing costs, and other finance charges less a reasonable depreciation on the product from the date of original purchase. Warranty work can only be performed at our authorized service centers or at the factory. Warranty work for some products can only be performed at our factory. We will remedy the defect and ship the product from the service center or our factory within a reasonable time after receipt of the defective product at our authorized service center or our factory. All expenses in remedying the defect, including surface shipping costs in the United States, will be borne by us. (You must bear the expense of shipping the product between any foreign country and the port of entry in the United States including the return shipment, and all taxes, duties, and other customs fees for such foreign shipments.)

HOW TO OBTAIN WARRANTY SERVICE
You must notify us of your need for warranty service within the warranty period. All components must be shipped in a factory pack, which, if needed, may be obtained from us free of charge. Corrective action will be taken within a reasonable time of the date of receipt of the defective product by us or our authorized service center. If the repairs made by us or our authorized service center are not satisfactory, notify us or our authorized service center immediately.

DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGES
YOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTAL DAMAGES RESULTING FROM ANY DEFECT IN THE NEW CROWN PRODUCT. THIS INCLUDES ANY DAMAGE TO ANOTHER PRODUCT OR PRODUCTS RESULTING FROM SUCH A DEFECT. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATIONS OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.

WARRANTY ALTERATIONS
No person has the authority to enlarge, amend, or modify this Crown Warranty. This Crown Warranty is not extended by the length of time which you are deprived of the use of the new Crown product. Repairs and replacement parts provided under the terms of this Crown Warranty shall carry only the unexpired portion of this Crown Warranty.

DESIGN CHANGES
We reserve the right to change the design of any product from time to time without notice and with no obligation to make corresponding changes in products previously manufactured.

LEGAL REMEDIES OF PURCHASER
THIS CROWN WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE. No action to enforce this Crown Warranty shall be commenced after expiration of the warranty period. THIS STATEMENT OF WARRANTY SUPERSEDES ANY OTHERS CONTAINED IN THIS MANUAL FOR CROWN PRODUCTS. 9/07

WORLDWIDE EXCEPT USA & CANADA

SUMMARY OF WARRANTY
Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of each NEW Crown1 product, for a period of three (3) years from the date of purchase by the original purchaser (the “warranty period”) that the new Crown product is free of defects in materials and workmanship, and we further warrant the new Crown product regardless of the reason for failure, except as excluded in this Warranty. Warranty is only valid within the country in which the product is purchased.

Note : If your unit bears the name “Amcron,” please substitute it for the name “Crown” in this warranty.

ITEMS EXCLUDED FROM THIS CROWNWARRANTY
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. This Crown Warranty also does not extend to the new Crown product if the serial number has been defaced, altered, or removed.

WHAT THE WARRANTOR WILL DO
We will remedy any defect, regardless of the reason for failure (except as excluded), by repair, replacement, or refund. We may not elect refund unless you agree, or unless we are unable to provide replacement, and repair is not practical or cannot be timely made. If a refund is elected, then you must make the defective or malfunctioning product available to us free and clear of all liens or other encumbrances. The refund will be equal to the actual purchase price, not including interest, insurance, closing costs, and other finance charges less a reasonable depreciation on the product from the date of original purchase. Warranty work can only be performed at our authorized service centers. We will remedy the defect and ship the product from the service center within a reasonable time after receipt of the defective product at our authorized service center.

HOW TO OBTAIN WARRANTY SERVICE
You must notify your local Crown importer of your need for warranty service within the warranty period. All components must be shipped in the original box. Corrective action will be taken within a reasonable time of the date of receipt of the defective product by our authorized service center. If the repairs made by our authorized service center are not satisfactory, notify our authorized service center immediately

DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGES
YOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTAL DAMAGES RESULTING FROM ANY DEFECT IN THE NEW CROWN PRODUCT. THIS INCLUDES ANY DAMAGE TO ANOTHER PRODUCT OR PRODUCTS RESULTING FROM SUCH A DEFECT.

WARRANTY ALTERATIONS No person has the authority to enlarge, amend, or modify this Crown Warranty. This Crown Warranty is not extended by the length of time which you are deprived of the use of the new Crown product. Repairs and replacement parts provided under the terms of this Crown Warranty shall carry only the unexpired portion of this Crown Warranty.

DESIGN CHANGES We reserve the right to change the design of any product from time to time without notice and with no obligation to make corresponding changes in products previously manufactured.

LEGAL REMEDIES OF PURCHASER No action to enforce this Crown Warranty shall be commenced after expiration of the warranty period. THIS STATEMENT OF WARRANTY SUPERSEDES ANY OTHERS CONTAINED IN THIS MANUAL FOR CROWN PRODUCTS. 9/07

FCC

This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions:

• This device may not cause harmful interference, and
• this device must accept any interference received, including interference that may cause undesired operation.

CAUTION : Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Crown

• Crown Factory Service
• 1718 W. Mishawaka Rd.,
• Elkhart, Indiana 46517 U.S.A.

Telephone:

• 574.294.8200
• 800.342.6939 (North America,
• Puerto Rico, and Virgin Islands only)

Facsimile:

• 574.294.8301 (Technical Support)
• 574.294.8124 (Factory Service)
• Internet: http://www.crownaudio.com

FAQs

What is the Crown 180MA Mix Amplifier?

The Crown 180MA Mix Amplifier is a commercial-grade audio amplifier designed for various applications, including background music and paging systems.

What is the power rating of the Crown 180MA?

The Crown 180MA provides 80 watts of power, making it suitable for small to medium-sized audio installations.

What input options does it offer?

The Crown 180MA features multiple input options, including mic/line inputs, RCA inputs, and Euroblock connectors for versatility in connecting audio sources.

Can it be used in 70V or 100V distributed audio systems?

Yes, the Crown 180MA supports both 70V and 100V distributed audio systems, making it compatible with various speaker configurations.

Is it rack-mountable?

Yes, the Crown 180MA is rack-mountable, making it easy to integrate into standard audio equipment racks.

Does it have built-in protection features?

Yes, it includes protection features such as thermal protection, short-circuit protection, and overload protection to safeguard the amplifier and connected equipment.

What is the frequency response of the Crown 180MA?

The amplifier has a frequency response that ensures clear and balanced audio reproduction across a wide range of frequencies.

Is remote control or volume adjustment possible?

Yes, remote volume control can be achieved through compatible remote control devices, and it also supports volume adjustment on the front panel.

Can it be used in 2-channel or 4-channel mode?

Yes, the Crown 180MA can be configured for either 2-channel or 4-channel operation, depending on your audio setup needs.

Does it have a built-in mixer?

Yes, it features a built-in mixer with adjustable input levels, allowing you to mix audio sources directly within the amplifier.

What is the warranty coverage for the Crown 180MA?

Warranty coverage may vary, so it's advisable to check the warranty details provided by the manufacturer or retailer at the time of purchase.

Where can I find additional resources and user manuals for the Crown 180MA Mix Amplifier?

Additional resources, user manuals, and customer support information can be found on the official Crown website and through authorized Crown dealers.

Download This PDF Link:Crown 180MA Mix Amplifier 80W Commercial Operation Manual

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