This series of AE amplifiers are small, high-performance systems that amplify and filter an incoming AE signal either directly from an AE sensor or from an external preamplifier. That resulting signal now a high-frequency analog output can be integrated into any number of external monitoring or data acquisition instruments. Pluggable filter modules allow use of high pass, bandpass or low pass filter to vary the bandwidth of a detected signals. Both traditional AE bandwidth (up to 2 MHz) and extended frequency (up to 5 MHz) are covered.