Item # 712517 | Customer Ratings: ( 5 Based on 34 reviews)

Print this page

  1. Select the information you'd like to print out.
  2. Cancel
Boss TU-3 Chromatic Pedal Tuner
Use Add to Cart below to have it shipped to you, or to a store near you.
  • Store
  • Availability
Guaranteed Lowest Price
Pickup In Store

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.

Boss TU-3 Chromatic Pedal Tuner 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)

    Owner's Manual
    Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
    Dry battery/9V type (6F22)

Boss TU-3 Chromatic Pedal Tuner 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)

    Width: 73 mm, 2-7/8"
    Depth: 129 mm, 5-1/8"
    Height: 59 mm, 2-3/8"
    Weight: 390g, 14 oz.

Boss TU-3 Chromatic Pedal Tuner

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

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 34 reviews)
Sort reviews:
Viewing Reviews 1 - 3 of 34 |
  • Great tuner

    As reviewed by asdf on 6/1/2010

    I bought this tuner today and spent the extra ten dollars to upgrade from the TU-2. It's wayyy more accurate and works with lower tuning like drop C# which my band uses. It can also work as a killswitch if you're on stage and is extremely durable, if you buy it at a store and are offered to pay for a warranty, don't. Boss pedals are really durable and almost never break. I highly reccomend this.

    18 of 18 people found this review helpful.
    Was this review helpful?
  • Everybody should have one of these

    As reviewed by Jonathan Hooper on 4/6/2010

    This is a great tuner. When you step on it it mute your guitar and lets you tune in between songs. This is great for tuning up your guitar real quick in between long sets. What really impressed though was that I could see it playing an outdoor gig recently when I couldn't all my other pedals because the sun was too bright. If you plan on playing live, then this is the tuner for you

    12 of 12 people found this review helpful.
    Was this review helpful?
  • Great pedal for a great price.

    As reviewed by Joey Wright on 2/11/2011

    Let's be honest... price is hardly an option when the alternative is being out of tune, thereby destroying any sense of beauty coming from your instrument. (within reason i suppose) That being said, this tuner doesn't even hurt to pay for... it's 99 bucks... ridiculously cheap considering what you are getting... a boss stomp box tuner, which implies durability and industry standard as a pedal board adornment... but they've upped the ante. This tuner says it gets within 1 cent of the pitch... i haven't performed any scientific tests to verify this, but I'm confident that the TU3 is getting me into a more precise and exact tuning than did my TU2 (a pedal i toured with for years... played with and stomped on thousands of times... and still works flawlessly). Add this little extra... when you tune to the pitch you are after, once you achieve it you get a visual indicator letting you know you have arrived... in addition to the two yellow arrows that have indicated pitch, now you get a parade a lights starting on the outside and racing toward the center to 'bookend' either side of the pitch you've arrived at. Incredibly simple... yet super effective... the guess work all guitar players know when you are playing live of 'i got to the pitch... uh... did i go past it a touch... uh... did i go too far back...' etc is over. If you have never used a boss stomp box tuner, time for you to catch up. If you have used the TU2, stop reading reviews. Order this pedal now. You won't regret it. (i really should buy some stock in Boss, eh?)

    4 of 4 people found this review helpful.
    Was this review helpful?
Questions about the TU-3 Chromatic Pedal Tuner (712517)

PO Box 4769
Westlake Village, CA 91359
Order #: (if applicable)  * Denotes Required Field
*First Name:
*Last Name:
Click to add file attachment
File Upload 5mb limit