The Peterson 490 8-Octave AutoStrobe Tuner responds at light speed to display relative tuning of any source to 0.1 cent accuracy with automatic handsfree note selection. Features automatic image clarity and contrast control for optimal viewing. The +2/-1 display shifts strobe patterns into more visible middle ranges bass note patterns can be displayed 3 octaves higher and treble notes can be displayed one octave lower. Strobe patterns appear on tuner display at correct note for Bb, F, and Eb instruments. A new external input and through output with mute enable onstage silent tuning.
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