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Boss TU-12EX Chromatic Tuner For Guitar & Bass

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Boss TU-12EX Chromatic Tuner For Guitar & Bass

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$148.00

4.5 (9)

1 Critic Review

3 Reviews

Find out who is using Boss TU-12EX

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Page last updated Jul 06, 2026

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4.5 (84)

$148.00 Used

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Description

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Whether you're strumming strings in your living room or rocking out on stage, the Boss TU-12EX Chromatic Tuner is your trusty sidekick, ensuring perfect pitch every time. This versatile tuner caters to both guitar and bass enthusiasts, making it an essential addition to your gig bag. With its sharp LED display and built-in condenser mic, tuning becomes a breeze no matter where you are. Whether you're a beginner or a seasoned performer, you'll appreciate the TU-12EX's reliability and durability, qualities that musicians have come to expect from Boss. Compact yet powerful, this tuner is designed to endure the rigors of travel and performance, promising accurate tuning in any situation. With the Boss TU-12EX, you'll spend less time tuning and more time making music.

Key Features:

Suitable for both guitar and bass
Sharp LED display for easy reading
Built-in condenser microphone for acoustic tuning
Compact and durable design
Reliable and accurate tuning capability

Product specs

Brand	Boss
Model	TU-12EX Chromatic Guitar/Bass Tuner
Finish	Black
Year	2010s
Made In	Japan
Categories	Tuners

FAQs

How does the Boss TU-12EX Chromatic Tuner indicate tuning accuracy?: The Boss TU-12EX uses needle and LED indicators for fast and accurate tuning, allowing you to visually confirm when your instrument is in tune.
Can the Boss TU-12EX tune instruments with flat tunings?: Yes, the Boss TU-12EX supports flat tuning of up to six half steps, making it suitable for alternative tunings often used in genres like rock and metal.
Does the Boss TU-12EX have features for tuning acoustic instruments?: The Boss TU-12EX includes a built-in microphone, enabling it to accurately tune acoustic instruments without the need for additional pickups or cables.
What is the ACCU-PITCH feature on the Boss TU-12EX?: The ACCU-PITCH feature provides an audible beep when the correct pitch is reached, offering an additional layer of confirmation during the tuning process.
Is the Boss TU-12EX suitable for both guitar and bass?: Yes, the Boss TU-12EX is designed for both guitar and bass, offering chromatic tuning capabilities that accommodate a wide range of notes and tunings.

Reviews

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PROS

Extremely accurate with a precise needle display for meticulous tuning
Built-in microphone works well for acoustic instruments
Durable; previous models have lasted over 15 years
Features an audible beep for perfect tuning confirmation
Includes Flat Tuning and a reference tone feature
Easy to use with a minimal learning curve
Powered by readily available AA batteries
Auto shut-off feature to save battery life
Thin, lightweight design for portability
Fits perfectly in the BOSS BCB-60 Pedalboard

CONS

Comes with a cheap velvet drawstring bag instead of a protective case
Smaller string indicators can be hard to read in low light
Uses more battery power than simpler tuners
Lacks the aesthetic appeal and sound of mechanical metronomes

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Boss TU-12EX Chromatic Tuner For Guitar & Bass.

Features and functionality

0 0

The Boss TU-12EX does not automatically power on when plugged back in unless the power button is pressed again, impacting pedalboard integration.
Source

Comparisons

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Users suggest considering the Boss TU-15 if automatic power-on is required, as the TU-12EX needs manual activation with each power cycle.
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Some users who transitioned from Snark to Boss TU-12EX appreciate its robustness and reliability, despite its larger size.
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User experience

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It's noted that Boss pedals typically power on automatically unless batteries are present, which can keep them off when powered externally.
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A user highlighted the reliability of the Boss TU-12EX, noting they never felt the need to switch tuners after using it.
Source

Use cases and applications

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The Boss TU-12EX is favored by some musicians for its performance across multiple instruments like banjo, guitar, and mandolin.
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Build quality

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It's noted that the Boss TU-12EX is robust, contrasting with the Snark's notorious ball joint issues.
Source

Critic Reviews

Rex and the Bass: Boss TU-12EX Tuner Review

rexbass.com

The Boss TU-12EX Chromatic Tuner is a reliable and compact choice for guitarists and bassists, blending long-standing design with modern updates. It's easy to use, offers accurate tuning, and features an improved auto-off function to save battery life. The inclusion of both traditional needle gauge and Accu-Pitch beeping are nice touches, though the latter can be turned off if not needed. However, the lack of an LCD screen might be a drawback for some. Overall, with its reasonable pricing and superior functionality, the TU-12EX stands out as a worthy upgrade.

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4.5 out of 5

Based on 3 Reviews and 9 Ratings

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ammarraadaly

259

over 8 years ago

It looks retro but it feels so good to have it, it also fits right in place

This successor to the legendary TU-12 provides BOSS’ famous needle/LED indicators for fast, accurate tuning. Other features include Flat Tuning of up to six half steps, ACCU-PITCH with an audible beep, a reference tone, a built-in microphone for acoustic instruments and battery-saving Auto-Off.