2 channel balanced amplifier in laboratory quality. The areas of application are very diverse. The most important thing is probably the lossless connection of home HiFi devices with professional studio devices, such as monitor speakers or tape recorders, and the integration of asymmetrical electronic musical instruments, such as synthesizers, in the symmetrical studio environment. The SAM-1 also reliably eliminates hum loops. SAM-1 is built by Funk Tonstudiotechnik in Berlin and exceeds all demands placed on such an amplifier. Hundreds of these miracle boxes are used by German broadcasters and private recording studios. Probably there is no better device of this type worldwide.