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Summary of Contents for Crest Audio WMA 4300
- Page 1 WMA™4300 Professional Series Installation Power Amplifer Owner’s Manual...
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Page 2: Power Amplifier
Power Amplifier The WMA 4300 is a high quality, commercial grade analog audio mixer/amplifier. Designed for flexibility in application, this mixer/ amp represents the latest state-of-the-art technology in analog and class-D circuit design. Powerful, yet easy to use, the new WMA 4300 delivers amazing sonic performance. - Page 3 Front Panel FUSE 100 -120V FUSE FUSE FUSE FUSE T6.3AL/250V 220- 240V WMA 4300 T3. 1 5AL/250V POWER PROFESSIONAL SERIES INSTALLATION POWER AMPLIFIER PEAK/MUTE ACL/MUTE SIGNAL SIGNAL MASTER LEVEL POWER REMOTE IN LOCAL INPUTS (1) Input Channel Level Controls These rotary controls set the channel signal level sent to the mix bus. It is best set in the 12:00 to 2:00 range as indicated on the front panel.
- Page 4 A user accessible dual RCA input connector is available on channel 4. It provides an easy way to connect a local mono or stereo unbalanced source to the WMA 4300. The Remote/Local selector switch must be pressed to activate this input.
- Page 5 (22) Mute All Connecting the two terminals on the mute all input connector, mutes all audio through the WMA 4300. This may need to be connected to a fire alarm system, for example, to mute audio in case of emergency.
- Page 6 Block Diagram...
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Page 7: Installation
Installation Back Box Installation: Determine if the unit is to be surface or flush mounted. If flush mounted, the front edge of the Back Box should be flush with the wall’s finish surface. The Back Box must be securely attached to the wall. Connect the mains wiring to the Back Box with Hot, Neutral, and Ground following local electrical codes. - Page 8 Chassis Installation: Make sure that the voltage selector switch and fuse are correct for the incoming mains voltage. An incorrect setting could damage the unit. Slide the chassis onto Back Box hinges. Wire the audio inputs and amplifier speaker outputs. Connect the IEC power cord from the Back Box to the receptacle on the fan bracket.
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Page 9: Specifications
Specifications Technical support Web site: http://peaveycommercialaudio.com/products.cfm/cr/: Email: techserve@crestaudio.com Rated Output Power: 300 Watts Frequency Response: Power Amplifier Direct out: +0, -3 dB, 65 Hz to 20 kHz, Transformer out: +0, -3 dB, 65 Hz to 20 kHz, THD: Power Amplifier: 0.04% (1 kHz 1/8 power) Preamplifier: 0.02% with nominal gain settings... - Page 10 Tone Controls: Bass: ±10 dB at 100 Hz Treble: ±10 dB at 10 kHz Phantom Power Inputs 1-3: 48 Volts User Controls and Indicators: Channel Level Controls 1-4 Master Level Control Euro/RCA Input Selector Channel 4 Channel Signal present LED Channel Clip/Mute LED Master Signal present LED Power Amplifier ACL LED...
- Page 11 UPDATING A WMA 75/150 WITH A WMA4300 CHASSIS The WMA 75 and WMA 150 can be updated with a WMA 4300 chassis using the existing back box and cover. The WMA4300 is smaller than the other units, so some modifications to the original back box must be done to secure the new chassis in it.
- Page 12 Here are pictures of the process. (The door of the WMA 150 was removed for clarity): Hinge moved to accommodate new chassis. Chassis fitted to back box hinges. Bracket added using existing mounting holes.
- Page 13 Views with chassis mounted New view of user controls...
- Page 16 Warranty registration and information for U.S. customers available online at www.peaveycommercialaudio.com/warranty or use the QR tag below Features and speci cations subject to change without notice. Crest Audio 5022 HWY 493 N. Meridian, MS 39305 (601) 483-5365 FAX (601) 486-1278 Logo referenced in Directive 2002/96/EC Annex IV (OJ(L)37/38,13.02.03 and defined in EN 50419: 2005...
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