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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.
Stereo inputs and mono output feature balanced XLR connections.
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.
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
XLR (Balanced input/outputs)
Balanced, 40k Ohm bridging
Balanced, 40 Ohms Maximum Zs
Nominal Output Level
+4dBu in, +22dBm Out to 600 ohm balanced load
+22dBu in, +22dBm out to 600 ohm balanced load
+/- .25dB, 20 to 20,000 Hz
70dB Minimum at 10kHz
-90dBm maximum output (20kHz B.W.)
Total Harmonic Distortion (THD)
.02% Max.at Peak Level
.005% Max. at Nominal Level
20Hz to 20kHz
24VDC @ .07A, connector sleeve is positive
1.5 x 5.5 x 5.75" (38.1 x 139.70 x 146.05mm) (HxWxD)