The NANOAMP L200 dual line/buffer amplifier is an inexpensive high performance amplifier, which is ideal as a gain block, attenuator, impedance converter and signal splitter. It can also be configured as a stereo to mono summing amplifier with the addition of an internal jumper. The inputs provide a balanced 40k ohm bridging impedance for line levels up to +24dBm. Two screwdrivers adjust, 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.