Description, Summing Amplifier | Amplifier Tech SUM100 specification

DESCRIPTION

The SUM100 Summing Amplifier is an inexpensive, high performance amplifier that is designed as a line level stereo to mono summing amplifier. It is also useful as a gain block, and as an impedance converter and summing for IHF (RCA type) signals.

The inputs provide balanced 40Kohm bridging impedance for line levels up to +24dBm. The high input impedance allows the SUM100 inputs to also bridge - 10dBu (hi-fi, RCA plug) lines without loading.

Front panel, screwdriver adjust, full range gain controls provide 26dB gain at full clockwise rotation, unity gain at twelve o’clock and a smooth audio taper to full off. The output driver is a servo controlled, ground-sensing circuit, which will supply over +22dBm to 600 ohm balanced loads and +20dBu to high impedance, unbalanced loads. The SUM100 uses rugged XLR type input and output connectors.

Loop-through DC connectors allow several NANOAMPS to share a single external 24VDC power supply. Battery packs and DC-DC converters for portable use are also available.

Up to three amplifiers will mount side-by-side in only one rack unit using the available rack mounting kits. NANOAMPS may also be neatly stacked or mounted side by- side on your desk with the available angled desk mounting kits.

CIRCUIT DESCRIPTION

INPUT STAGES

The balanced input stages of the SUM100 Line Amplifier utilize a FET input LF347 quad op-amp in a clean, quiet inverting instrumentation amplifier configuration. Input levels up to +24dBm will be handled without clipping, excess levels cause only clean clipping without hang-up or phase reversal. Equal -6dB gains from both HI and LO inputs allow unbalanced sources to be easily accommodated. Bridging impedance is a high 40Kohms with good CMR. Linear panel adjust trimpots for both left and right signals are designed to be operated at their 12 o’clock position for maximum resolution.

SUMMING AMPLIFIER

Left and right signals are combined in an active summing network (A1B) which yields unity gain for each individual signal, three dB gain (RMS summation) for program audio signals and six dB gain for correlated inputs.

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

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.