Audio Note (UK) M1 Line Pre Amplifier is a pure Class A, Zero Negative Feedback design, employing a single ECC82 dual triode valve.
It has been specifically engineered for sonic performance rather than technical specification, and offers an outstanding level of performance and value.
It fulfils all Audio Note (UK) Level 1 criteria: -
Pure Class A operation
Zero negative feedback
Materials and component quality
​The M1 Line and M1 Phono are phase inverting.

The sonic signature of the Audio Note M1 Line is fullbodied, clear and highly musical with rich details. The amplifier makes listening to music itself possible rather than hifi equipment. It gives a well proportioned sound image and the entire sound spectrum a buttery but solid feeling that has a full and rich valve color. Violin sounds richer than reality and vocals sound heavenly. Multi-layered harmonics from the mixed chorus sound grandiose, like the echoes in a Medieval stone cathedral. When playing difficult high-octane music, the M1 Line will do a very tactful job of toning down the abrasiveness and rounding off the edges. The Audio Note M1 Line is a respectable performer that emphasizes the vital parts of music very well.