Boss TU-3 Chromatic Tuner Pedal with Bypass

Guitar and Bass Tuner Pedal with High-Brightness Mode for Outdoor Visibility, 21-segment LED Meter, Drop Tuning Support, and Guitar/Bass Mode
Boss TU-3 Chromatic Tuner Pedal with Bypass image 1
Boss TU-3 Chromatic Tuner Pedal with Bypass image 1
$99.00
Sweetwater Savings: $38.60 MSRP: $137.60
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Boss TU-3 Chromatic Tuner Pedal with Bypass
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The World's Best-selling Stage Tuner — Improved!

The TU-3 is more than just a rock-solid, dependable tuner for your guitar rig — it's practically a modern legend. The latest member of BOSS's world-famous TU Series, the TU-3 is made to work night after night, stomp after stomp. And since it now features a high-brightness mode for your outdoor summer festival gigs, it'll work day after day too — you can bet the TU-3 will be glare-free, offering up a large, clear LED display to help you get in tune.

As far as display goes, you have a few choices in how you prefer to tune up. Whatever you do, the Accu-Pitch function gives you visual verification whenever you're in tune (very handy). The TU-3 also has a chromatic mode for tuning by note name, then there's Guitar/Bass mode that lets you tune by string number — even string number for 7-string guitars and 6-string basses. Finally, there's a Guitar Flat mode for those of you that like to rock Drop tunings, down to six semitones below standard.

The BOSS TU-3 is definitely a pedalboard must have — and its predecessor, the TU-2, was the world's best-selling tuner pedal for good reason: it just works. What's also cool about the TU-3 is that it can supply power for up to seven BOSS compact effects pedals, so you can keep your pedalboard neat and tidy, and your power strip free of nasty wall warts. Get in tune, stay in tune — get the BOSS TU-3.

BOSS TU-3 Guitar Tuner Pedal Features at a Glance:
  • Stompbox-style guitar tuner pedal
  • 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
  • Tuner automatically mutes when the tuner is on
  • Can supply power for up to 7 BOSS compact effect pedals
Here's an unbeatable value and a pedalboard must have — the latest version of the world-famous TU Series tuner pedals, the BOSS TU-3!

Additional Media

BOSS TU-3 Owners Manual
Volume Pedal Placement on a Pedalboard

Tech Specs

Type Chromatic
Format Pedal
Display Type LED
Reference Pitch A4 = 436Hz-445Hz
Tuning Range C0 to C8
Inputs 1 x 1/4"
Outputs 1 x 1/4", 1 x 1/4" Thru
Power Supply Included No
Batteries 1 x 9V (Included)
Height 2.32"
Depth 5.08"
Width 2.87"
Weight 0.86 lbs.
Manufacturer Part Number TU-3

Customer Reviews

4.5/5
Based on 56 reviews
Write your review
5/5

TU 3

Love it. Dead on and quick to to find the note and tune. No bouncing around. Very clean through my rig.
5/5

Boss TU-3

The Boss Tu-3 is unsurpassed as a pedal tuner. It's already saved me at least a $100 in set-up fees because it's easy to fix a guitar's intonation without going to a guitar shop. Plus Kurt from Sweetwater is great to work with.
Music background: Studio/Session Musician & Producer & Amateur Luthier
5/5

Boss TU-3

This a greet tuner, worth every penny. Works just as advertised and better. Sweetwqter is a wonderful place to deal with, service second to none.
Music background: Pro Musician
5/5

great tuner

great tuner... very easy to use..... total bypass and noiseless... I would recommend it hardly..
Music background: hobbyist
5/5

Great tuner

Got this tuner to play on stage with the praise and worship team. Easy to see in any light conditions. Only use it in chromatic mode but seems to be very versatile with many other modes available. Simple to use, easy to understand controls and works great!
Music background: play rythm guitar in church band

Sweetwater Advice

Jared Kalish

This pedal is an absolute lifesaver when you're on stage. I can't tell you the amount of times my bass has gone out of tune after I've been really laying into it for a song or two. Just look down, stomp the box and get yourself back to sounding like you should.
See also: Tuners, Boss, Boss Guitar Tuners