The M3 Line is a Level 3 line pre-amplifier, developed for the best possible sonic performance rather than technical specifications. To this end, the M3 Line incorporates thermionic valve technology to produce the most accurate sound possible and has been brought to maturity through a development process we call comparison by contrast, which is currently unique to Audio Note. The article from which this technique is based, named ‘Audio Hell’, is available from Audio Note by request. Please read this manual carefully in order to obtain the best possible performance from your pre-amplifier. Audio Note wishes you many happy years of listening pleasure.