The 11A34 Four-Channel Amplifier Plug-In is an excellent medium bandwidth amplifier. It offers switchable 1 Mohm/50 ohm input impedance, fast overdrive recovery, and wide offset range. Two built-in four-pole bandwidth-limit filters (100MHz and 20MHz) may be activated to reduce unwanted high-frequency noise at 24 dB/octave for each channel. The unit has a 300MHz bandwidth.