Page 2 - Important Safety Instructions
Commercial Audio Series Mixer-Amplifiers page 2 Operation Manual Important Safety Instructions FCC COMPLIANCE NOTICE This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must ...
Page 3 - DECLARATION of CONFORMITY
Commercial Audio Series Mixer-Amplifiers page 3 Operation Manual DECLARATION of CONFORMITY Crown International, Inc. Sue [email protected] European Representative’s Name and Address: Nick Owen35, Bassets FieldThornhillCardiff. South GlamorgenCF14 9UG United Kingdom Equipm...
Page 4 - Table of Contents
Commercial Audio Series Mixer-Amplifiers page 4 Operation Manual Important Safety Instructions .......................................................2 Declaration of Conformity ............................................................3 1 Welcome .....................................................
Page 5 - Welcome
Commercial Audio Series Mixer-Amplifiers page 5 Operation Manual 1 Welcome T he Crown ® 140MPA is a high-value mixer- amplifier for commercial audio. It provides 4-ohm and constant-voltage outputs (25V and 70V). Typical uses are paging, background music, and music-on-hold. The unit provides 4 inputs...
Page 8 - Setup
Commercial Audio Series Mixer-Amplifiers page 8 Operation Manual Figure 2.2 How to Connect Rack Ears 2 Setup 2.1 Installation CAUTION: Before you begin, make sure your mixer-amplifier is disconnected from the power source, with the power switch in the “off” position and all level controls turned com...
Page 9 - To mic o; To; To telepho
Commercial Audio Series Mixer-Amplifiers page 9 Operation Manual 2.3 Choose Input Wire and Connectors Crown recommends using pre-built or professionally wired bal-anced line (two-conductor plus shield), 22-24 gauge cables and connectors. Unbalanced line may also be used but may result in noise over ...
Page 11 - Sa
Commercial Audio Series Mixer-Amplifiers page 11 Operation Manual 2.5 Wire Your System Typical input and output wiring is shown in Figure 2.10. INPUTS: For Input 1, connect a microphone or balanced line-level signal to the Input 1 balanced input. Set the Mic/Line switch accord-ingly. Connect unbalan...
Page 13 - Operation
Commercial Audio Series Mixer-Amplifiers page 13 Operation Manual 3.1 Powering Up 1. Turn off any equipment connected to the Line Out connectors.2. Plug the amplifier’s power cord into a 3-wire grounded AC outlet.3. Turn down the input volume controls.4. Turn down the master volume control.5. Turn o...
Page 14 - Troubleshooting; KEY
Commercial Audio Series Mixer-Amplifiers page 14 Operation Manual 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 sup- ply circuit brea...
Page 15 - Specifications
Commercial Audio Series Mixer-Amplifiers page 15 Operation Manual Minimum Guaranteed Power 140MPA 1 kHz with 0.5% THD Minimum guaranteed power into 4 ohms or 25V/70V output 40W Performance Number of input channels 4 Number of power amplifiers 1 Input Sensitivity (volts RMS) for full output at maximu...
Page 16 - Service
Commercial Audio Series Mixer-Amplifiers page 16 Operation Manual Crown mixer-amplifiers are quality units that rarely require servicing. Before returning your unit for servic-ing, please contact Crown Technical Support to verify the need for servicing. This unit has very sophisticated circuitry whi...
Page 17 - Warranty; UNITED STATES & CANADA
Commercial Audio Series Mixer-Amplifiers page 17 Operation Manual YEAR 3 SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUB-SEQUENT OWNER of each NEW Crown product, for a period of three (3) years ...
Page 18 - WORLDWIDE EXCEPT USA & CANADA
Commercial Audio Series Mixer-Amplifiers page 18 Operation Manual YEAR 3 7 Warranty 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 SUB-SEQUENT OWNER of each NEW Cr...
Page 19 - * SERIAL #; PRODUCT REGISTRATION; PRODUCT INFORMATION; CU
Commercial Audio Series Mixer-Amplifiers page 19 Operation Manual Online registration is also available at http://crownweb.crownintl.com/webregistration When this form is used to register your product, it may be mailed or faxed. Crown International Fax: 574-294-8329 1718 W Mishawaka Rd Elkhart IN 46...
Page 21 - Crown Audio Factory Service Information; PLEASE PRINT CLEARLY; PRODUCT RETURN INFORMATION
Commercial Audio Series Mixer-Amplifiers page 21 Operation Manual Crown Audio Factory Service Information Shipping Address: Crown Audio Factory Service, 1718 W. Mishawaka Rd., Elkhart, IN 46517 PLEASE PRINT CLEARLY SRA #: __________________(If sending product to Crown factory service.) Model: ______...