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collapse expand iconDescription

The BOSS TU-3 is the world’s go-to stompbox tuner, trusted by players everywhere for its reliable operation and bulletproof durability. Scaled down in size, the TU-3S gives you the same industry-standard performance in a tiny footprint that saves precious pedalboard space. The display and tuning functions are identical to the TU-3— the only thing eliminated is the pedal switch. Always on and ready to go, the TU-3S is perfect for use with pedal switching systems like the BOSS ES-8 and ES-5, and ideal for any setup where space is at a premium.
BOSS TU-3S Chromatic Tuner
BOSS TU-3S Chromatic Tuner
BOSS TU-3S Chromatic Tuner

collapse expand iconFeatures

  • Respected TU-3 tuning performance in a more compact size
  • 21-segment LED meter with brightness control
  • High Brightness mode enhances meter visibility outdoors
  • Accu-Pitch Sign function provides visual verification when tuning is complete
  • Chromatic and Guitar/Bass modes, with support for 7-string guitars and 6-string basses
  • Guitar Flat mode supports “drop” tunings up to six semitones below standard pitch
  • Powered by optional PSA-series adapter; DC Out jack for powering up to seven BOSS compact effect pedals via an optional PCS-20A daisy-chain cable (sold separately)
  • BOSS five-year warranty

collapse expand iconWarranty

Boss pedals - 5 year parts warranty
90 day labor warranty.
1 year warranty - Multitracks, Jamstations, etc.
Check with manufacturer for specific product warranty.

collapse expand iconReviews

5

2 Reviews

100%

of respondents would recommend this to a friend

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Reviewed by 2 customers

  • Great!

    5

    Verified BuyerVerified Buyer

    submitteda year ago

    byRick

    fromAlbuquerque, NM

    Submitted as part of a sweepstakes

    I am a bass player and I keep the tuner on top of my combo amp, using the send output to the tuner. Works great and easy to see.

  • Cool idea, if you can wrap your head around it

    5

    submitted8 years ago

    byWow, bud....

    fromLincoln, NE

    First off, there is NO bypass. That's kind of the point. However, I got my best example ever of most ridiculous music rhetoric spoken here in these reviews. Amazing. Boss rules. Cool idea, and super handy for my situation. Keep up the great work, and America: keep on being you.

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collapse expand iconQ&A

Have a question about this product? Our expert Gear Advisers have the answers.

  • submitted3 years ago

    asked byAce

    fromRiverside, CA

    It states "the only thing different is they removed the foot switch" but I don't see a battery compartment... Is this unit not battery compatible?

    It states "the only thing different is they removed the foot switch" but I don't see a battery compartment... Is this unit not battery compatible?

    Open Reply - Ronald
    It is not battery compatible.