The Peterson AutoStrobe 490 is agreed by music students, technicians, and professionals to be the standard by which all tuners are measured. Only Peterson could bring you the kind of real- time intonation critical enough for ear training use. Enjoy hands-free note selection for fast, accurate tuning of instruments. Other companies may boast of their strobe tuner capabilities, but buyer beware! The AutoStrobe 490 is a truly stroboscopic mechanical tuner capable of fundamental and overtone display. Key features include mutable throughputs for in-line (yet silent) tuning during performances, automatic image clarity and contrast control which internally compensate for optimal viewing over a wide range of source pitch and volume, improved clarity for upper and lower register notes (our +2/-1 display feature shifts the strobe patterns into more visible middle ranges so that bass note patterns can be displayed two octaves higher and treble note patterns can be displayed one octave lower in strobe display), and easy transposition (strobe patterns appear at the correct note for Bb, F, and Eb instruments).

The AutoStrobe 590 is THE preeminent mechanical strobe tuner for tone generation and metronome facilities. It combines both input instrument tone and audio standard reference tone at the output for simultaneous visual and audible tuning along with exceptional intonation training! The 590’s key features (automatic note tracking and audio tone generation capabilities) make it a favorite in the classroom, at the factory, or backstage. And as usual, only a Peterson can respond at the speed of light to display relative tuning information extracted from any audio source down to 0.1 of a cent (1/1000 of a semitone) accuracy! Finally, utilize automatic (hands-free) note selection for fast tune ups of instruments. Proudly made in the USA.

Featuring the largest tuning display Peterson Tuners has ever incorporated into one of their pedal tuners, the StroboStomp HD boasts a high-definition, LCD screen that incorporates a variable color LED backlight. The user-selectable colors can be used to personalize the tuner or to increase display viewing quality in different levels of ambient lighting depending on the usage environment. The vibrant screen colors can also be assigned to stock or user presets to significantly reduce menu navigation time and increase on-stage tuning confidence at the gig. For tone purists, the StroboStomp HD provides a 100% silent, true-bypass operation mode to keep precious tone safe, as well as, eliminate the often annoying “pop” experienced when engaging such a feature in other products. It uses a unique series of timed relays incorporated within its circuitry to shunt the signal, draining the cause of the popping sound prior to breaking the connection, and effectively shutting the tuner down for direct play through without affecting tone quality. The StroboStomp HD also includes a long-time, user-requested buffered output operation mode that can be user engaged. The buffered mode can be used in or out of monitor mode. It is designed to boost instrument drive to overcome potential tone loss in signal chains that incorporate multiple low-impedance guitar pedals or those that utilize long cable runs. The buffered output modes preserve sonic quality all through the instrument range and keep prized core tone intact. The StroboStomp HD features over 100 exclusive Sweetened Tunings™, as well as, numbered guided tuning presets for a large variety of instruments and playing styles. Sweetened Tunings are exclusive to Peterson tuning products and are designed to help correct inherent tuning issues exhibited by many instruments. The new "Guided Tunings" mode allows the StroboStomp HD to display numeric string values instead of traditional note names making for sure-fire intuitive and rapid re-tuning to any number of open and alternative tunings. The Guided Tuning mode was instituted for beginners who want to experiment with popular alternate tunings, as well as, experienced players who employ multiple tunings in rapid succession. Numerically expressed scales are also included.