he 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 amplifier 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 adjustable, full range gain controls provide 28dB 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 +24dBm to 600 ohm balanced loads and +20dBu to high impedance, unbalanced loads. The SUM100 uses rugged XLR type input and output connectors. The SUM100-RCA adds unbalanced RCA connectors in addition to the standard XLRs.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 SUM100 units will mount side-by-side in only one 19-inch 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.