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Boss TU-3 Chromatic Pedal Tuner

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One of the world's top-selling stage tuners, the BOSS TU-2, has evolved and improved into the TU-3 pedal tuner. Housed in a tank-tough BOSS stompbox ...Click To Read More About This Product

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OVERVIEW

Provides easy-to-read tuning with a display made to be visible in dark or bright conditions.

One of the world's top-selling stage tuners, the BOSS TU-2, has evolved and improved into the TU-3 pedal tuner. Housed in a tank-tough BOSS stompbox body, the TU-3 chromatic tuner features a smooth 21-segment LED meter with a High-Brightness mode that cuts through the harshest outdoor glare. Choose between Chromatic or Guitar/Bass tuning modes. Accu-Pitch Sign gives you pinpoint visual verification that tuning is complete. The BOSS TU-3 tuner incorporates a convenient Note Name Indicator that can display notes of 7-string guitars and 6-string basses, while the Flat-Tuning mode can support up to 6 half-steps. It's the kind of instrument pedal tuner that no performing guitarist or bass player should be without.

FEATURES
  • 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 mode (tune by string number, with support for 7-string guitars and 6-string basses)
  • Flat tuning is supported with Guitar Flat mode, which allows for drop tunings up to 6 semitones below standard pitch
  • Signal is automatically muted when the tuner is on
  • Supplies power for up to 7 BOSS compact effect pedals (with optional PCS-20A Cable)
  • Accessories:
  • Owner's Manual
  • Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
  • Dry battery/9V type (6F22)

Get in tune, quick, easy, and accurately with the BOSS pedal tuner. Order one today.

SPECIFICATIONS
  • Tuning Range: C0 (16.35Hz) -C8 (4186Hz)
  • Reference Pitch: A4=436-445Hz (1Hz step)
  • Tuning Accuracy: ±1 cent
  • Power Supply: DC 9V: Dry battery 6F22 (9V) type (carbon), Dry battery 6LR61 (9V) type (alkaline), AC Adaptor
  • Current Draw: 30 mA (DC 9V), 85mA (DC 9V, when High Brightness mode is on)
  • Dimensions
    • Width: 73 mm, 2-7/8"
    • Depth: 129 mm, 5-1/8"
    • Height: 59 mm, 2-3/8"
    • Weight: 390g, 14 oz.
    Reviews
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    Review Snapshot

    by PowerReviews
    BossTU-3 Chromatic Pedal Tuner
     
    4.8

    (based on 82 reviews)

    Ratings Distribution

    • 5 Stars

       

      (72)

    • 4 Stars

       

      (8)

    • 3 Stars

       

      (1)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (1)

    96%

    of respondents would recommend this to a friend.

    Pros

    • Easy to use (31)
    • Good quality (31)
    • Functional (27)
    • Compact (14)
    • Responsive (12)

    Cons

    No Cons

    Best Uses

    • Practicing (27)
    • Concerts (24)
    • Performances (14)
    • Home studio (12)
    • Amateur recording (9)
      • Reviewer Profile:
      • Experienced (36), Professional musician (17), Novice (3)

    Most Liked Positive Review

     

    Great for low tones in a bass

    Very accurate, I can tune my 5 strings bass down to a low "A" easily. For a low "G" it barely detects the frequency, but still...Read complete review

    Very accurate, I can tune my 5 strings bass down to a low "A" easily. For a low "G" it barely detects the frequency, but still useful.
    It has two outputs (bypass and output), the second one mutes your sound while tuning your guitar/bass, this is pretty useful also if you want to switch your guitar/bass between songs without turning off your amp. No messy sounds.
    I recommend to use the power cable instead of batteries, otherwise you will not be able to finish your concert when the batteries are already drain. One 9v battery is included, the power cable is not included (to bad from boss for such an expensive pedal. I use "One Spot" cable for my TU-3). The battery is pretty easy to replace, no tools needed.
    Very strong metal case and rubber bottom for improved traction.
    This TU-3 is more accurate than my boss TU-12 (which cannot even detect the low B frequency) and the onboard tuner of my Orange 100BXT amp. I uploaded a comparison to youtube if you wanna watch.
    TU-3 is somehow costly, but i strongly recommend saving some money until you can buy this one (for its quality and precision).

    VS

    Most Liked Negative Review

     

    Buy the Waza version!

    THis used to be the best we had, and yes, this is a very decent tuner. But if you're gonna spend for this, spend the extra on the Waza version. It's so...Read complete review

    THis used to be the best we had, and yes, this is a very decent tuner. But if you're gonna spend for this, spend the extra on the Waza version. It's so worth it. It tracks incredibly better, it's been looked over and built much better, has true bypass AND pass thru, plus, I hate to say it, but it looks so much cooler too! Bottom line, even with function before fashion mentality, pick up the Waza version, you def won't be dissapointed.

    Reviewed by 82 customers

    Displaying reviews 1-20

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    (6 of 6 customers found this review helpful)

     
    5.0

    Big improvement over the TU-2

    By Karl Houseknecht

    from Palmyra, VA

    See all my reviews

    Comments about Boss TU-3 Chromatic Pedal Tuner:

    I had a TU-2 before and hated it. The accuracy of the TU-2 is +/- 3 cent, which is ridiculous. That means you could potentially be 6 cent out of tune between strings. I also didn't like how it tracked notes. The TU-3 is a huge improvement. +/- 1 cent accuracy and improved tracking. The display is bright, has a better 21 segment tuning display over the TU-2's simple multiple LED display. The high brightness mode for outdoor use is great, I even use it indoors on dark stages.I like the stream/strobe mode where it operates almost like a strobe tuner but also gives a nice confirmation that you are dead on pitch. Easy, fast tuning. This tuner found itself a permanent place on my analog board. Best pedal tuner I've used. I had a Korg Pitchblack before this one, and while I liked the small footprint and the large note display, the accuracy was lacking, even though it was < +/- 1 cent, because the tuning guides just weren't fine grained enough, and it didn't track very well.

    (6 of 6 customers found this review helpful)

     
    5.0

    It Tunes!

    By David Frank

    from The Sticks

    See all my reviews

    Comments about Boss TU-3 Chromatic Pedal Tuner:

    It does what it's supposed to.
    It has a needle that points to the center when you are right on the desired note. Just in case that wasn't enough - it also has a light that lights up. They thought of everything!
    Unless I'm tone deaf, it seems to put you in tune.
    I like that it's not made out of plastic.

    (6 of 7 customers found this review helpful)

     
    5.0

    Great Tuner Pedal

    By Cameron

    from Undisclosed

    See all my reviews

    Comments about Boss TU-3 Chromatic Pedal Tuner:

    This is a great tuner pedal. I use it both with my electric and my acoustic and it offers percise tuning in a small amount of time. It's great because it has both a output which if you run it this way it will cut your single off when ever you need to tune or it has a bypass output which will tune your guitar without cuting you guitar signal which is great to run with a volume pedal so you won't have to keep turning you pedal on and off when you play live or something. It's a great pedal and is well worth the money and would be a great buy for anyone.

    (5 of 5 customers found this review helpful)

     
    5.0

    Great for low tones in a bass

    By Arfi

    from Tx

    About Me Experienced

    See all my reviews

    Pros

    • Accurate
    • Good Quality
    • Quiet

    Cons

    • Quick Battery Consumption

    Best Uses

    • Concerts
    • Muteswitching Guitarbass
    • Practicing

    Comments about Boss TU-3 Chromatic Pedal Tuner:

    Very accurate, I can tune my 5 strings bass down to a low "A" easily. For a low "G" it barely detects the frequency, but still useful.
    It has two outputs (bypass and output), the second one mutes your sound while tuning your guitar/bass, this is pretty useful also if you want to switch your guitar/bass between songs without turning off your amp. No messy sounds.
    I recommend to use the power cable instead of batteries, otherwise you will not be able to finish your concert when the batteries are already drain. One 9v battery is included, the power cable is not included (to bad from boss for such an expensive pedal. I use "One Spot" cable for my TU-3). The battery is pretty easy to replace, no tools needed.
    Very strong metal case and rubber bottom for improved traction.
    This TU-3 is more accurate than my boss TU-12 (which cannot even detect the low B frequency) and the onboard tuner of my Orange 100BXT amp. I uploaded a comparison to youtube if you wanna watch.
    TU-3 is somehow costly, but i strongly recommend saving some money until you can buy this one (for its quality and precision).

    (5 of 6 customers found this review helpful)

     
    5.0

    Tuning like a BOSS

    By Pedalbored

    from Louisville, KY

    See all my reviews

    Comments about Boss TU-3 Chromatic Pedal Tuner:

    Tuning like a BOSS!
    Great pedal very solid design.
    Awesome tuner. Great for everything from 7 string guitars to 6 string basses. Extremely accurate and precise. Has several modes for tuning such as the standard mode where the LED moves till its centered, constantly moving lights to either the sharp or flat side and slowing down as you get closer to the note, and another i've yet to check out. The LED are uber bright. The TU-2 came out in the 80's and was solid until this baby came out. This pedal should be around for 30 years like its previous model. Boss quality stompbox as usual. Full metal stomp box. Just all around perfect.
    It might be a little pricey but well worth it. Compaired to others around this same price its definately the best. Throw out the extra cash for this pedal if you can afford to.

    (5 of 5 customers found this review helpful)

     
    5.0

    Boss TU-3 Chromatic Pedal Tuner

    By Terry Gardner

    from Texas panhandle

    See all my reviews

    Comments about Boss TU-3 Chromatic Pedal Tuner:

    Easy to see tuner guide lights until green light is lit indicating tuned note. Use 9V battery or needs optional AC adapter. Simply plug in guitar, turn on pedaly switch, and tune. Output plugs consist of an Output Jack (mutes tuning output when connect to amp or other processor) or Bypass Jack (connects to amp or other processor while always playing tuning note using pedal switch).
    Simple to use with excellent results.
    Excellent quality
    Great value with free shipping and without state sales tax.

    (5 of 5 customers found this review helpful)

     
    5.0

    life line

    By Jbrillaladykillaa

    from wisconsin

    See all my reviews

    Comments about Boss TU-3 Chromatic Pedal Tuner:

    This pedal is everything to me, and I have three reasons why. I down tune my guitar to cgcfad for one. Two I power all my pedals off of this pedal, and three I use this pedal as a bypass to cut my sound live. All around greatest pedal to have!

    (5 of 6 customers found this review helpful)

     
    5.0

    Play guitar/bass? You need this.

    By METALkiDofEArTH08

    from Somerset, KY

    See all my reviews

    Comments about Boss TU-3 Chromatic Pedal Tuner:

    I own a Boss TU2 pedal. When I heard about the TU3, I was thinking, "There is nothing wrong with the TU2." I was right... except the TU3 is even better.

    I used one when I was subbing for a band, and here's what makes the TU3 better. The LED's are closer together which shows more accurate tuning. When you are tuned up, two yellow LEDs zoom across the pedal to tell you "STOP, you are perfectly in tune." (The yellow arrows of the TU2 are good, but I like this better)

    I'm sure that's just one of many modes you can use. I am seriously considering selling my TU2 and getting a TU3.There are other good tuners out there, (and a ton of REALLY, REALLY TERRIBLE ones) but Boss is constantly improving already top-of-the-line products.

    Play guitar/bass? You need this.
    It's Boss. Boss = (virtually) indestructible
    A touch expensive.

    (4 of 4 customers found this review helpful)

     
    5.0

    Does what it's supposed to do.

    By Milkman-27

    from Undisclosed

    See all my reviews

    Comments about Boss TU-3 Chromatic Pedal Tuner:

    I have always stayed away from pedal tuners in the past but my Boss TU-12 went out on me after 11 years. I tried some cheaper tuners and have never been satisfied with their performance so I decided to go back to Boss and I thought that I would try one of these out. The tuner works great on both my guitar and bass, it is built like a tank, and is really easy to read. I haven't had any problems with tracking and I cannot tell that it affects my tone enough to worry about(I have used other pedals that I couldn't stand to use because of that very reason). I am not disappointed at all and I am glad to have a quality tuner again.

    (3 of 3 customers found this review helpful)

     
    4.0

    Kin to the Sherman Tank in construction

    By Michael J

    from Tulsa, OK

    About Me Experienced

    See all my reviews

    Verified Buyer

    Pros

    • Bombproof
    • Consistent Boss Quality
    • Easy To Use
    • Functional
    • Good Quality
    • Reliable Operation

    Cons

      Best Uses

      • Outdoor Festivals
      • Practicing
      • Traveling Jams

      Comments about Boss TU-3 Chromatic Pedal Tuner:

      Only purchasing as I gave my original Boss tuner (15 years old) to my son.
      This thing is an Ox...expect it to take more abuse than friends and I can dish out

      (3 of 3 customers found this review helpful)

       
      5.0

      Industry Standard

      By Friends call me ...B

      from Stanardsville, VA

      About Me Professional Musician

      See all my reviews

      Verified Buyer

      Pros

      • Easy To Use
      • Functional
      • Good Quality
      • Improves Sound

      Cons

        Best Uses

        • Concerts
        • Practicing

        Comments about Boss TU-3 Chromatic Pedal Tuner:

        My TU-2 hadnt died, but was limping after almost 15 yrs of regular and sometimes irregular abuse. It was cutting in and out and wasnt prudent for live shows as I switch basses for certain tunings. IT STILL SPOT ON TUNES so Im keeping it for the rehearsel room. I called the competition so I could just walk right in and get me a new TU-3. I was told the NEW TU-3 was not as good as its predecessor the TU-2 and they tried to sell me a used TU-2 saying that it had better tuning capability......So....instead I ordered the NEW TU-3 from Musicians Friend, because I do play outside shows and NEEDED the LED for sun glare. Oh, by the way, its EXACTLY like my TU-2 just better. Bigtime keeper.

        (3 of 3 customers found this review helpful)

         
        5.0

        THE BEST

        By Anonymous

        from Undisclosed

        Comments about Boss TU-3 Chromatic Pedal Tuner:

        Throw out your TU-2. Don't wait for it to break. It won't. It also will not be nearly as accurate as the TU-3. I finally feel like I am in tune without having to touch it up after tuning with TU-2. Boss got it right.

        (3 of 4 customers found this review helpful)

         
        5.0

        Works great

        By cincy_cosmo

        from Cincinnati

        See all my reviews

        Comments about Boss TU-3 Chromatic Pedal Tuner:

        I use it to tune bass and it detects pitch accurately and quickly. The display identifies when you are in tune. Does not effect sound. The display is bright and adjustable. I just can't ask for anything more.

        (3 of 3 customers found this review helpful)

         
        5.0

        How did I do without this!

        By Michael B.

        from A-rock-zona

        See all my reviews

        Comments about Boss TU-3 Chromatic Pedal Tuner:

        Very happy with this tuner. I own the TU-12 whichis a great tuner but I could not tune the B stringon my 5 string bass. The TU-3 tunes in a snap on all strings, is very visable and just easy to use.And not made in China. Thank you Boss/Roland!

        (3 of 16 customers found this review helpful)

         
        5.0

        It works

        By Great-FDkJV

        from Undisclosed

        See all my reviews

        Comments about Boss TU-3 Chromatic Pedal Tuner:

        It works. I opened it up to put a 9V battery in... and couldn't figure out how to do it, despite mostly taking it apart. I guess you can't have battery power?
        Well built, solid tuning pedal, but my ears are more sensitive than the tuner. It'll get you very close, then do relative pitch tuning to fine tune things.
        It's pretty pricey.

        (3 of 3 customers found this review helpful)

         
        5.0

        Great Tuner

        By Old Rocker Dude

        from WNC

        See all my reviews

        Ask me a question

        Comments about Boss TU-3 Chromatic Pedal Tuner:

        Quick response, easy to read on a dark stage. Built Boss tough. The only issue I've had is that the tuner seems to have a hard time with my lowest string. I use Bb dropped tuning on a Les Paul and I don't think there's a tuner on the market that can accurately tune the low Bb string. Otherwise this tuner is perfect. If you tweak a string until the tuner "locks on" with the "in-tune" indication - then that string is dead on. For my Bb guitar, I just have to go back and barely tweak the low Bb by ear until I get the "beats" out of it. The TU-3 tunes my standard tuned Strat super quick - super accurate. Another great product from Boss.

        (3 of 3 customers found this review helpful)

         
        5.0

        Great TU2 Replacement!

        By Wah Wah Willy

        from Costa Mesa CA

        See all my reviews

        Comments about Boss TU-3 Chromatic Pedal Tuner:

        Nice job Boss! Like the brighter readout and the behavior is as expected from the TU2. It seems to be fast and acurate. No problems, no surprises, just a great basic tool from the Boss crew.

        (2 of 2 customers found this review helpful)

         
        5.0

        More options than I expected

        By Brian

        from Monroeville, Indiana

        About Me Professional Musician

        See all my reviews

        Ask me a question

        Pros

        • Easy To Use
        • Functional
        • Good Quality

        Cons

          Best Uses

          • Concerts
          • Practicing

          Comments about Boss TU-3 Chromatic Pedal Tuner:

          My jack finally went bad on my old tuner. I noticed alot of musicians use this BOSS tuner so I decided to give it a try. It is built very solid, very easy to see and use, and even has settings for 1/2 step and multiple guitars. Very glad I spent the cash to get a nice tuner!

          (2 of 2 customers found this review helpful)

           
          5.0

          We All Need a Tuner and This one is BOSS

          By Mr. Guitar

          from Appomattox, Va

          About Me Experienced

          See all my reviews

          Ask me a question

          Pros

          • Easy To Use
          • Fast And Accurate
          • Functional
          • Good Quality
          • Highly Visable Display

          Cons

          • None

          Best Uses

          • Anytime With Your Guitar
          • Concerts
          • Practicing

          Comments about Boss TU-3 Chromatic Pedal Tuner:

          There isn't any excuse for playing out of tune anymore. Back when I started playing you had to tune to a pitch fork or a pitch pipe, what a hassle !!! If you were lucky you had a keyboard in the band and everyone tuned to the keyboard. This BOSS tuner is slick, it can mute your sound when tuning so you can check your tuning at any break in your performance, therefore, you have no excuse for playing out of tune.

          (2 of 2 customers found this review helpful)

           
          4.0

          Good basic tuner with different modes.

          By fenderLover

          from Bay Area, CA

          About Me Experienced

          See all my reviews

          Verified Buyer

          Pros

          • 12 Step Flat Tuning
          • Easy To Use
          • Functional
          • Good Quality
          • Half Step Flat Tuning
          • Improves Sound

          Cons

          • Show Polarity Of 9v In

          Best Uses

          • Concerts
          • Practicing

          Comments about Boss TU-3 Chromatic Pedal Tuner:

          Easy to use and you can tune in silence. I play some SRV and EVH and Hendrix so half step tuning is a must for me and this has it. I would give it a 5 star except that they don't show the polarity of the external 9V (BTW, it's negative center.) You can buy a generic external supply a lot cheaper than the Boss brand. The battery gets drained quick if you forget to unplug the input.

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