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BOSS

Boss TU-3S Chromatic Tuner

  • Based on 171 reviews
Condition: New
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Returnable until Jan 31, 2025

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Availability: 15 left in stock
Fulfilled by Amazon
Arrives Thursday, Aug 21
Order within 23 hours and 44 minutes
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Style: Compact


Pattern Name: Tuner


Features

  • Drop Tuning Suppt
  • Guitar/Bass Mode
  • High Brightness mode enhances meter visibility outdoors
  • Accu-Pitch Sign function provides visual verification when tuning is complete

Description

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 From the Manufacturer TU-3S Chromatic Tuner Pocket-sized power in the palm of your hand 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.

Brand: BOSS


Style: Compact


Color: White


Item Weight: 0.89 Pounds


Voltage: 9 Volts


Item Weight: 14.2 ounces


Product Dimensions: 3.38 x 2.88 x 2.25 inches


Item model number: TU-3S


Batteries: 1 9V batteries required.


Is Discontinued By Manufacturer: No


Date First Available: April 27, 2016


Color Name: White


Hardware Interface: USB


Signal Format: Analog


Battery type: Alkaline


Power Source: Corded Electric


Voltage: 9 Volts


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Boss makes the best pedals
Does exactly what you expect it to do, small size takes up less room.
Reviewed in the United States on October 26, 2024 by Secare
    • Just got but love it so far.
I run an effects out of my Tascam 464 Portastudio that I am using as mixer, into the Boss. I do a weekly acoustic guitar online Meetup group. I plug my Taylor 612CE into the board on a channel, my Neuman TLM93 vocal mic into a Peavvy phantom power supply and them into a balanced XLR 2nd channel. I run stereo RCA lines out into 1/8" mini jack into my sound card line/mic in on my Lenovo P300 PC. This Boss allows quick tuning. And I can go in and out of open G, open D etc. tunings. I like not having to stomp on the pedal to turn on the tuner, not having to worry about 9V battery to get it running. I've only had it a week so I need to learn it. It's small. The actual "Boss" power supplies are EXPENSIVE. I bought a Chinese aftermarket substitute for $9.95. It seems to work. Before that arrived, I found an old universal DC adapter with slider voltage switch and prongs in the middle of the output cable that you can swap to change polarity. I got out the Fluke voltmeter to measure what was actually coming out of the "6, 8, 9, 12 V" marked positions and to measure polarity. Glad I did. That old adapter set right also works well. ... show more
Reviewed in the United States on July 31, 2022 by basskleff
    • Tuner
Works great, really like that it’s on all the time.
Reviewed in the United States on September 6, 2024 by Mike
    • It's a boss tuner
Built like a tank, fits great on my pedalboard.
Reviewed in the United States on August 14, 2024 by Brent miller
    • Small and practical
Great tuner. I’ve always wondered why I needed a tuner to take up so much space. A huge plus is that it still has the double 9v out so you can daisy chain power to another pedal. I still haven’t found a mini pedal that can do that. When it comes to accuracy I still trust my TC Electronic though. It seems to hear the note better. This has it’s moments where it gets a little confused on what I’m playing. But only for a quick moment. No biggie. ... show more
Reviewed in the United States on May 4, 2019 by Travis
    • Good tuner. Very small on the board. Little downsides
I really like how small this is and that I can daisy chain power supply off of it. The only thing is that it’s constantly active, so if I run power off of it to my big sky it buzzes. Hardcore. Even when its in a closed loop from my tuner. I have to run a separate power supply to keep the buzz out of my signal chain, but other than that it’s great. ... show more
Reviewed in the United States on July 27, 2023 by Argon Development
    • More accurate than Polytune 3
I have this side by side with my TC Electronic Polytune 3. And while the Polytune showed green/in tune. The Boss was about 5 cents flat. Once I got in tune according to the Boss, the Polytune still showed in tune. The Boss is definitely more accurate. I will be using this for my intonation adjustments moving forward. My only nitpick is sharp notes are indicated by a small dot at the lower right of the note name. It took me a moment to adjust to that. ... show more
Reviewed in the United States on May 16, 2023 by BW40009
    • Space saver and accurate.
Very little real-estate on my board and accurate. What else do you need in a tuner?
Reviewed in the United States on June 1, 2023 by Jonathan Windsor

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