DA-770 Series Professional Power Amplifiers. Owners Manual Stewart Audio 14407 Cuesta Court Sonora, Ca 95370 WHEN THE PERFORMANCE DEPENDS ON IT Tel: 209.588.8111 Fax: 209.588.8113 www.Stewartaudio.com...
Notes: Safety Before using your Stewart Audio Power Amplifier, please read this owner’s manual carefully to ensure optimum trouble-free performance. Warning: To REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT EXPOSE THIS AMPLIFIER TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES ARE PRESENT INSIDE THE CHASSIS.
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Notes: - Important Safety Instructions - Please Read Prior to Product Installation. All of the safety and operating instructions should be read before the amplifier is operated. Retain these in- structions for future reference. All instructions should be followed; all warnings on the amplifier and in the operating instructions should be adhered to.
Power Supply High Speed Switching and require no noisy fans for cooling. Cooling Convection (No Fans) We at Stewart Audio strive to bring you the finest in professional electronics, and we thank Controls Power on/off, Channel Gain you for your choice, which we see as an LED Indicators Power &...
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Troubleshooting Reference Chart Contents Symptom: Recommended Action: No output Power indicator is off. Be sure power outlet is “live” Be (There is a normal delay of up sure power switch is “on.” to 30 seconds on turn-on.) No output Power indicator LED This indicates a short-circuit Special Features……………………………………………….……...…6 cycles on and off.
Digital Audio Technology. The new, all Digital DA Series Power Amplifiers If you experience difficulty in operating your new DA- were developed by Stewart Audio’s Digital Audio Team and represent the 70 Series amplifier, Chances are good that you will be able to remedy the problem yourself using standard pinnacle of Stewart Audio technology and design.
High Frequency Switch Mode Power Supplies Input Wiring The foundation of all amplifier design is the power supply. For years Stewart Audio has pioneered leading edge, power supply Your DA-770-2 Series amplifier is provided with a 3 technology. All Stewart Audio amplifiers feature a High- conductor Phoenix Type connector for each input.
AC Power Considerations Your Stewart Audio DA-770-2 amplifiers are designed to op- erate on 120 volt, 60 Hz AC current. Average power consumption will depend on load impedance, signal level and program material.
Rack mounting of the DA-770-2 Series may be achieved by using either the Stewart Audio RMK-70-S or RMK-70-D rack kits. The RMK-70-S centers the amplifier in a single rack space, while the RMK-70-D allows you to rack two amps side by side in a single rack space.
See Input Wiring in the section on Installation (Page 14) for Simplicity is a design objective in the development of all more details. Stewart Audio power amplifiers. These amplifiers remain sim- ple and intuitive to operate even while incorporating some of the most advanced technology available today.
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