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Summary of Contents for Crest Audio UMA 4300
- Page 1 UMA™4300 Professional Series Installation Power Amplifer Owner’s Manual...
- Page 2 Professional Installation Power Amplifier The UMA 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 UMA series delivers amazing sonic performance.
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Page 3: Front Panel
Front Panel UMA 4300 PEAK/MUTE ACL /MUTE SIGNAL SIGNAL MASTER LEVEL POWER PROFESSIONAL SERIES INSTALLATION POWER AMPLIFIER (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 (11) Line Voltage Selector Switch The line voltage select should be checked and set to match the mains voltage before connecting and operating this unit. The UMA 4300 can be operated at 100V-120 VAC or 220-240 VAC 50/60 Hz. (12) Outputs A direct output and transformer outputs are provided to allow proper interface between the amplifier and the loudspeaker system.
- Page 5 2-4 are muted. Setting this control at the full counter-clockwise position defeats the muting function. (24) Phantom Power +48V There are two phantom power switches on the rear of the UMA 4300. The first turns on +48V phantom power for input 1, the second for inputs 2 and 3. (25) Mute All Connecting the two terminals on the mute all input connector, mutes all audio through the UMA 4300.
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Page 6: Block Diagram
Block Diagram... -
Page 7: 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 8 Tone Controls: Bass: ±10 dB at 100 Hz Treble: ±10 dB at 10 kHz Phantom Power Inputs 1-3: 48 Volts Front Panel Controls and Indicators: Channel Level Controls 1-4 Master Level Control Channel Signal present LED Channel Clip/Mute LED Master Signal present LED Power amplifier ACL LED Power On LED Rear Panel Controls:...
- Page 9 W x 337 mm D x 88 mm H) and 17” W x 13.25” D x 3.45” H without rack ears (432 mm W x 337 mm D x 88 mm H). The unit shall be called the Crest Audio Professional Installation Series Power Amplifier model UMA 4300.
- Page 12 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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