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Peterson Electronic Piano Tuner AutoStrobe 490-ST

$ 1,400.00
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The AutoStrobe 490ST Tuner has all the great features of the AutoStrobe 490 and also includes stretch tuning capabilities. The Model 490ST has built-in stretch setting and also allows you to save the off-sets of a particular instrument for recall at a later time.

With the Model 490-ST, students, technicians, and musicians of all levels can utilize automatic (hands-free) note selection for absolutely the most accurate tuning of any instrument.



  • Wide Selection Of Pre-Programmed Stretch Files - Tables With Optimized Tunings For All Piano Types And Sizes. 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.
  • Enhanced Clarity For Upper And Lower Register Notes - +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.
  • External Input And Through Output With Mute - For In-Line, Silent Tuning During Performances.


    • Power Supply: Built-In (IEC)
    • Stretch Tuning Tables: 9 Preset Stretches
    • Note Range: C1 to B8
    • Note Selection: Automatic Or Manual
    • Foot Pedal Control: +/- Octave, Note Increment
    • Peterson Connect Compatible: No
    • Form Factor: Desktop/Bench
    • Accuracy: 0.1 Cents
    • Display Type: Single Analog Strobe Disc
    • Display Resolution: Infinite (Analog)
    • Construction: Metal Casing
    • Product Dimensions LxWxH: 13.4" x 6.375" x 3.5"
    • Product Weight: 7lbs. (3.18kg)
    • USB Port: No
    • Power: AC 100V to 240V
    • Built-In Microphone: Yes
    • Built-In Speaker: No
    • Metronome: No
    • Inputs: 1/4"
    • Jack Outputs: 1/4" Thru
    • Mute-able Output: Footswitch Controlled
    • Tone Generator: No
    • Concert A Range: 350Hz to 550Hz
    • Global Cent Offset Range: +/- 50 Cents
    • Transposition Range: Keys of C, Bb, F, Eb
    • Frequency Response Range: 32.70Hz to 7902.13Hz
    • Warranty: 1 Year
    • User Presets: 255 User Presets
    • Historic Temperaments: Yes


    Qty: 1


    Made in United States

    The #1 choice for Piano Technicians.



    Please allow 5 to 15 business days for delivery.
    Prices and availability subject to change without notice.