ATI Audio Inc SUM100 Summing Amplifier

ATI Audio Inc SUM100 Stereo to Mono Summing Amplifier with XLR I/O's

ATI Audio Inc SUM100 Stereo to Mono Summing Amplifier with XLR I/O's

B&H # ATSUM100 MFR # SUM100
ATI Audio Inc SUM100 Summing Amplifier

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  • 1Description

From the ATI-Audio NANOAMP Series, the SUM100 is a stereo to mono summing amplifier with balanced XLR 3-pin input and output connectors. In many cases, amplifiers, preamplifiers and analog mixers are able to provide stereo output but are incapable of summing stereo signals to mono. Mono signal feeds are required for certain wireless transmission as well as other applications relative to sound reinforcement and recording.

The inputs provide a balanced 40K ohm bridging impedance for line levels up to +24dBm. The high input impedance allows the input to also bridge -10dBu (hi-fi, RCA plug) lines without loading. Font panel, screwdriver potentiometers provide independent input trim controls and full range master gain control. 28dB gain maximum with input and output controls fully clockwise.

Stereo to Mono Summing
The SUM100 converts the stereo signal from an output source and sums the signal to mono. Stereo to mono conversion is required for certain wireless transmission and other applications.
Balanced Connections
Stereo inputs and mono output feature balanced XLR connections.
Bridged Input
The inputs provide a balanced 40K ohm bridging impedance for line levels up to +24dBm. The high input impedance allows the input to also bridge -10dBu (hi-fi, RCA plug) lines without loading.
Compact Design
The compact, lightweight foot print of the SUM100 allows portability and use on the road. Up to 3 units will mount side-by-side in only one rack unit using the available rack mounting kits.
In the Box
ATI Audio Inc SUM100 Stereo to Mono Summing Amplifier with XLR I/O's
  • 1 Year Warranty
  • Table of Contents
    • 1Description
    Connectors XLR (Balanced input/outputs)
    Input Impedance Balanced, 40k Ohm bridging
    Output Impedance Balanced, 40 Ohms Maximum Zs
    Nominal Output Level +4dBu in, +22dBm Out to 600 ohm balanced load
    Peak Level +22dBu in, +22dBm out to 600 ohm balanced load
    Frequency Response +/- .25dB, 20 to 20,000 Hz
    Crosstalk 70dB Minimum at 10kHz
    Signal-to-Noise Ratio -90dBm maximum output (20kHz B.W.)
    Total Harmonic Distortion (THD) .02% Max.at Peak Level
    .005% Max. at Nominal Level
    20Hz to 20kHz
    Power 24VDC @ .07A, connector sleeve is positive
    Dimensions 1.5 x 5.5 x 5.75" (38.1 x 139.70 x 146.05mm) (HxWxD)
    Weight 1.5 lb (24 oz)
    Packaging Info
    Package Weight 3.35 lb
    Box Dimensions (LxWxH) 11.6 x 8.4 x 3.8"

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