High Speed Switching Power Supply Technology Since 1982. World Series 600 & 1.2 Professional Stewart Audio Power Amplifiers 14397 Cuesta Court Suite D1 Sonora, CA 95370 Phone: (209) 588-8111 Fax: (209) 588-8113 Owners Manual support@stewartaudio.com We solicit your comments and suggestions.
World 1.2 by innovative circuitry and extraordinary efficiency, making installation simpler than ever before. We at Stewart Audio strive to bring you the finest in professional electronics, and we thank you for your choice, which we see as appreciation for our efforts.
Contents Specifications World 600 World 1.2 Introduction ………………………………………2 Output Power (1kHz, 0.1%THD) 275Wx2@2? per channel 500Wx2@2? per channel Contents/For the Record ………………………….3 190Wx2@4? per channel 350Wx2@4? per channel Safety ………………………………………...4 & 5 FTC Power Rating <.01%THD. Special Features ………………………………...6-8 20Hz-20kHz...
Safety Troubleshooting Reference Chart Before using your Stewart Audio Inc. Power Amplifier, please read this Symptom: Recommended Action: Owner’s Manual carefully to ensure optimum trouble –free performance. No output: Power indicator LED is off Be sure power outlet is “live”. Be sure...
High-Frequency Switch Mode Power Supply. Subsequent delays Objects have fallen, or liquid has spilled into the unit will be minimal, as long as the World 600/World 1.2 remains connected to The amplifier has been exposed to rain or other moisture AC power.
Operating your amplifier in Bridged (or MONO mode allows the two The World 600 and World 1.2’ are the result of many years of experience in channels to be used together to drive a single (monaural) load at a much greater the research, development, and manufacturing of amplifiers and other sound power level than is achievable using a single channel.
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Balanced/Unbalanced Inputs Wiring Inputs in Parallel The World 600/World 1.2 incorporates XLR and 1/4” Phone input Wiring XLR and 1/4” inputs in parallel (as throughputs to other equipment) Connectors, wired in parallel. This allows throughput of the signal to requires special consideration when combining balanced and unbalanced additional amplifiers or other equipment such as DAT recorders, etc.
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Low frequency #1 = Ground signals may sound weak or distorted as a result. Stewart Audio amplifiers #2 = Positive (+) have no current limiting in the audio path, and therefore reproduce the full #3 = Negative (-) dynamics of the audio signal.
For example, a World 600/World Note: Upon installation of the World 600/World 1.2, there will be a turn-on 1.2 being used by a guitar player in a loud rock band will generate more delay of up to one minute after AC power is applied to the amplifier.
See Input Wiring in the section on rated power of the World 600 is 600 watts into 4 ohms and the World 1.2 is Installation (page 12) for more details. (Note: the XLR input is wired in 1200 watts into 4 ohms.
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