Amplifier Tech SUM100 manual Mounting, Wiring Audio Connections, Grounding

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company inspect the unit and the box at your location. Count the pieces! Don't throw out the boxes and packing material until you are sure you have everything that is coming to you. The amplifiers need either their own separately ordered WA100 power supply or a DC cable, P/N20602-1 to share the supply of another amplifier.

Rack and desk mounting hardware may be packed in with the unit even though ordered separately. Wall mount power supplies must be ordered separately but may either be included with the unit or shipped in their own box.

MOUNTING

Single desk mounting kits consist of a pair of angled base plates that mount under the lower front and rear cover screws of a single unit, to raise and to tilt it for easy use. In addition, one or more sets of vertical stacking plates, mounting to the upper front and rear cover screws of the bottom unit, allow multiple units to be stacked. Several units can be desk mounted side-by-side and even stacked side-by-side using horizontal joiner kits together with mounting base and stacker kits. P/N20617-501 is the angled base kit. P/N20617-502 is the base plus one stacker kit (two high). P/N20617-503 is the base plus two stackers (three high). P/N20617-504 is the stacker kit by itself and P/N20604-504 is a horizontal joiner kit.

Rack mount system 21075-501 mounts three units in one rack.

WIRING

AUDIO CONNECTIONS

Balanced XLR type inputs and outputs are wired per figure 1 with pins 2 as HI and pins 3 as LOW. Pin 1 is the cable shield and ground connection. Pin 1 is grounded as shipped but may be floated to interrupt a hum producing ground loop by opening the unit and clipping out the GND LIFT jumpers. Unbalanced lines use pin 2 as HI and ground pins 3 and 1.

Active balanced outputs and inputs require a reference ground connection to the source or receiving device for proper operation. This ground can be provided by the rack frame or a studio buss connection if it is not carried through by the output cable shield.

GROUNDING

Operation in high RF broadcast environments requires special attention to grounding and shielding. The chassis must be grounded directly to a good, low impedance studio ground system. Input and output connections must be properly

Audio Technologies Inc. 154 Cooper Road #902 West Berlin, NJ 08091 Voice 856-719-9900 Fax 856-719-9903 www.audio.com

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Contents SUM100 Circuit Description Input Stages DescriptionSumming Amplifier Power Supply Installation UnpackingGain Stage Line OutputMounting Wiring Audio ConnectionsGrounding Power Distribution Battery OperationMaintenance Power Supply LevelsOperating Points Modifications Additional GainPerformance Specifications

SUM100 specifications

The Amplifier Tech SUM100 is a notable entry in the world of amplifiers, designed to meet the needs of both professional audio engineers and casual music enthusiasts. Renowned for its combination of power, efficiency, and sound fidelity, the SUM100 is making waves in various audio environments, from live performances to studio recordings.

One of the most striking features of the SUM100 is its robust power output. With a rating of 100 watts per channel at 8 ohms, it delivers sufficient power to drive a wide range of speakers, ensuring that the audio output remains clear and dynamic even at high volumes. Its power rating makes it a versatile choice for anyone looking to amplify their sound without compromising quality.

The SUM100 employs advanced Class D technology, which allows for significant energy efficiency without sacrificing audio performance. This technology enables the amplifier to produce minimal heat, meaning it can run for extended periods without the need for complex cooling systems. As a result, the SUM100 is ideal for both studio and live settings where prolonged use can occur.

An essential aspect of the SUM100 is its user-friendly interface, which facilitates easy adjustments and monitoring. The amplifier includes intuitive controls for volume, treble, and bass, allowing users to tailor the audio output to their specific preferences. Additionally, the front panel features LEDs that provide clear status updates, making it easy to understand the amplifier's operational state.

The SUM100 also boasts multiple input options, accommodating various sources such as instruments, microphones, and playback devices. This flexibility makes it a go-to solution for live bands, recording studios, and even home theater setups. The built-in protection circuitry ensures that both the amplifier and connected devices are safeguarded against potential damage from overloads or short circuits.

Moreover, the SUM100 is designed with durability in mind. Its sturdy construction and high-quality components ensure that it can withstand the rigors of frequent use, making it a worthy investment for any audio professional.

In conclusion, the Amplifier Tech SUM100 is a powerful, efficient, and versatile amplifier that stands out in today's audio landscape. With its advanced Class D technology, generous power output, and user-friendly features, it is well-suited for a wide range of applications, from live performances to studio recordings. Whether you are a seasoned audio professional or a passionate music lover, the SUM100 is sure to elevate your listening experience.