So fast you can check your intonation while playing.

The Peterson 490ST AutoStrobe Tuner with Stretch Tuning allows automatic (handsfree) note selection for fast, accurate tuning of instruments for students, technicians, and musicians at all levels. This feature also permits realtime display of intonation to improve performance and listening skills while playing. Includes stretch tuning capabilities for enhanced tuning of stringed or percussive instruments such as the piano, bass, guitar, marimba, steel pan, and others. Only Peterson strobe tuners respond at the speed of light to display relative tuning of any audio source to 0.1 of a cent (1/1000 of a semitone) accuracy.

Wide selection of preprogrammed stretch files

Tables with optimized tunings for all piano types and sizes takes the drudgery out of piano tuning. Up to 31 additional files may be programmed by the user.

Automatic note selection, automatic image clarity, and contrast control

Internal compensation for optimal viewing over a wide range of source pitch and volume.

Improved clarity for upper and lower register notes

The +2/-1 display feature shifts the strobe patterns into more visible middle ranges. Bass note patterns can be displayed two octaves higher and treble note patterns can be displayed one octave lower in strobe display.

Easy transposition

Strobe patterns appear at the correct note for Bb, F, and Eb instruments.

External input and through output with mute

For inline, silent tuning during performances.

Peterson 490-ST AutoStrobe Tuner with Stretch Tuning Features:

• Fast as light
• Accurate to 1/1000 of a semitone
• Automatic note selection
• Tables with optimized tunings for all piano types
• 31 programmable files
• Strobe patterns appear at the correct note for Bb, F, and Eb instruments
• External input
• Through output with mute

For size, speed, accuracy, and ease of use, it's the world's most advanced tuner. Make it yours today.

Peterson 490-ST AutoStrobe Tuner with Stretch Tuning

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Average of 3 User Ratings

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Narrow

Posted by Narrow ROad from KY on Oct 4, 2008

Experience w/product: I own it

Reviewer's Background: Semi-professional

Reviewer's Play Style: Bluegrass

The light in the display goes out shortly after buying it. Now the motor is bad in the wheel. It won't turn. For the money, it probably is o.k. in a studio but not road worthy.

Overall

Quality

Features

Value

It is not a best buy

Posted by Albert Li from Fresno, CA on Oct 16, 2006

Experience w/product: I own it

Reviewer's Background: Hobbyist

Reviewer's Play Style: Classic

I bought this for tunning my piano, the auto detecting does not work well, it gives me wrong note even I test against my Yamaha digital piano. Manu mode is good if I use external microphone, but it does not work on extreme frequence.

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Quality

Features

Value

A great tool with a few issues

Posted by Chris B. on Oct 9, 2006

Experience w/product: I own it

Reviewer's Background: Professional Musician

Reviewer's Play Style: Classical

The Peterson 490-ST AutoStrobe Tuner with Stretch Tuning is an excellent tool for the musician to use at home. I am a violinist and I use it to check my pitch. I use a contact mike connected to the mic input on the front pane. The features I have used on it are the pre-programmed temperaments, octave shift, manual pitch selection, and enhanced (0.1 cent) tuning measurements. The strobe dial is brightly lit, and easy to read. It zeroes in on the note quickly, but not instantaneously. The accuracy is great! The carrying handle is adjustable and acts as a kind of stand to elevate the front panel for ease of viewing. There are a few disadvantages to this tuner. First, it's not very portable, so if you are taking it to a gig or transporting it from home to office and back, it gets to be a chore. It also makes a humming sound when operating--not a big complaint. The biggest problem I have is that at certain places in the octave it will not "read" the new pitch very quickly. I have to stop playing and let it "rest" for a second or two and then play the new note. This happens at the change of octave between B and C. It also does something similar if the second note is a fifth lower than the first, for example B going to E. It keeps reading the B, presumably because B is in the harmonic series of E and it's not reading the fundamental. Again, if I stop and wait a moment, and then play the E, it picks it up. Finally, the manual isn't as user-friendly as it could be. While these issues are frustrating at times, I would not go back to a "needle" tuner. My pitch has improved tremendously since I've started using this tuner, so I figure I've gotten my money's worth!

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Peterson 490-ST AutoStrobe Tuner with Stretch Tuning

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