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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")

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

SPECIFICATIONS

TU-3 Chromatic Pedal Tuner

  • 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
 
4.9

(based on 76 reviews)

Ratings Distribution

  • 5 Stars

     

    (68)

  • 4 Stars

     

    (7)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

98%

of respondents would recommend this to a friend.

Pros

  • Easy to use (31)
  • Good quality (31)
  • Functional (27)
  • Compact (12)
  • Responsive (10)

Cons

No Cons

Best Uses

  • Practicing (26)
  • Concerts (24)
  • Performances (10)
  • Home studio (9)
  • Back-up (7)
    • Reviewer Profile:
    • Experienced (33), Professional musician (14), 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

 

Didn't meet my needs/style.

I'm sure it works well for many people but for me I could ear-tune faster. Unfortunately the return policy is restrictive so I guess I'll keep it and sell it on Craigs.

I'm sure it works well for many people but for me I could ear-tune faster. Unfortunately the return policy is restrictive so I guess I'll keep it and sell it on Craigs.

Reviewed by 76 customers

Displaying reviews 1-10

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5.0

Will not color your sound

By Last Sunset Music.

from Wy

About Me Experienced

See all my reviews

Ask me a question

Verified Buyer

Pros

  • Compact Design
  • Excellent Sound Quality
  • Responsive

Cons

    Best Uses

    • Events
    • Home Studio
    • Performances
    • Professional Recording

    Comments about Boss TU-3 Chromatic Pedal Tuner:

    Works great mute works as kill switch.

     
    5.0

    Industry standard stomp box tuner

    By MWNJ

    from Northern NJ/NY Metro Area

    About Me Professional Musician

    See all my reviews

    Verified Buyer

    Pros

    • Compact Design
    • Good quality
    • Reliable
    • Responsive

    Cons

      Best Uses

      • Amateur Recording
      • Home Studio
      • Performances
      • Professional Recording

      Comments about Boss TU-3 Chromatic Pedal Tuner:

      I see many guitarists using this tuner, even if they are not using other BOSS pedals, or a mix of BOSS and other pedals. It's the industry standard stomp box tuner.

       
      5.0

      Meets Expectations

      By antimi

      from San Diego, CA

      About Me Experienced

      See all my reviews

      Verified Buyer

      Pros

      • Responsive

      Cons

        Best Uses

        • Amateur Recording
        • Events
        • Home Studio
        • Performances
        • Professional Recording

        Comments about Boss TU-3 Chromatic Pedal Tuner:

        My old tuner wasn't picking up the pitches for the low strings on my 6 string bass and 9 string guitar. This tuner has no problem picking up those low pitches. I've got the bass tuned down a whole step, and guitar tuned down 2 whole steps, which puts the lowest string for both at an A.

         
        5.0

        So far so good

        By Mike

        from Aubrey,Texas

        About Me Experienced

        Verified Buyer

        Pros

        • accurate

        Cons

          Best Uses

            Comments about Boss TU-3 Chromatic Pedal Tuner:

            This is my first pedal tuner. Switching from a clip-on. Just starting to figure it out. So far , I like it. Seems to be accurate. Bright display.

             
            5.0

            Should have bought this a long time ago

            By RL

            from Frog, Texas

            About Me Experienced

            See all my reviews

            Verified Buyer

            Pros

            • Compact Design
            • Responsive
            • Versatile

            Cons

              Best Uses

              • Home Studio

              Comments about Boss TU-3 Chromatic Pedal Tuner:

              Fast, accurate & easy to read.

               
              5.0

              Yes

              By No name

              from Ga

              About Me Experienced

              Verified Buyer

              Pros

              • Compact Design
              • Responsive
              • Versatile

              Cons

                Best Uses

                • Performances

                Comments about Boss TU-3 Chromatic Pedal Tuner:

                Great little tuner.

                 
                5.0

                Love It

                By Keith

                from Idaho

                About Me Professional Musician

                See all my reviews

                Ask me a question

                Verified Reviewer

                Pros

                • Compact Design
                • Excellent Sound Quality
                • Good Selection Of Effects
                • Responsive
                • Versatile

                Cons

                  Best Uses

                  • Amateur Recording
                  • Events
                  • Home Studio
                  • Performances
                  • Professional Recording
                  • Touring

                  Comments about Boss TU-3 Chromatic Pedal Tuner:

                  Most important pedal on my board.

                   
                  5.0

                  Great Product

                  By Critter

                  from Wisconsin

                  About Me Experienced

                  Verified Buyer

                  Pros

                  • Compact Design
                  • Responsive
                  • Versatile

                  Cons

                    Best Uses

                    • Home Studio
                    • Performances

                    Comments about Boss TU-3 Chromatic Pedal Tuner:

                    It does exactly what it is meant to do!

                     
                    5.0

                    Tune me up and turn it down while tuning

                    By Daniel

                    from undisclosed

                    See all my reviews

                    Verified Buyer

                    Comments about TU-3 Chromatic Pedal Tuner:

                    Just getting into using pedals with my bass. Can't believe i lived without this pedal tuner before. Awesome. Who wants to hear tuning? And now i tune way more often.

                     
                    5.0

                    Quick easy tuning

                    By Daniel

                    from undisclosed

                    See all my reviews

                    Verified Buyer

                    Comments about Boss TU-3 Chromatic Pedal Tuner:

                    I've been using a tuner off my amp and would have to turn down, tune, turn up every time. Should have got this years ago. Works great on my bass. It's so easy that i tune up way more often now.

                    Displaying reviews 1-10

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