Boss TU-12H Chromatic Tuner

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$23.88

4.5 (13)

3 Reviews

This product is Vintage or Discontinued

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Boss TU-12EX Chromatic Tuner For Guitar & Bass

$148.00

4.5 (9)

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2 wishlisted

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Page last updated Jul 06, 2026

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5.0 (12)

$23.88 17 available Used

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Description

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When precision is paramount, the Boss TU-12H Chromatic Tuner is your reliable companion. Designed for versatility, it caters to a spectrum of instruments beyond just guitars and basses, extending its capabilities to woodwind, brass, and even ethnic instruments. This tuner stands out with its high-frequency tuning range, ensuring even the most unique instruments find their perfect pitch.

The TU-12H offers hands-free operation, allowing musicians to seamlessly focus on their performance while the tuner does the heavy lifting. Simply play a note, and the intuitive LED and sweep meter provide clear feedback on your tuning status, showing exactly how many cents sharp or flat you are. This eliminates guesswork and fine-tunes your sound with precision.

For those demanding accuracy, the adjustable standard pitch ranges from 440 to 445 Hz in 1 Hz increments. Whether you’re in a quiet practice room or a bustling stage environment, the built-in condenser mic and 1/4" input/output jacks ensure you can tune effortlessly, capturing the nuance of each note.

The Boss TU-12H Chromatic Tuner is more than a tool; it's a bridge between you and your music, ensuring that every performance resonates with clarity and confidence.

Key Features:

Wide tuning range for guitars, basses, woodwind, brass, and ethnic instruments
High-frequency mode for enhanced versatility
Hands-free operation with intuitive LED and sweep meter for precise tuning
Adjustable standard pitch from 440 to 445 Hz
Built-in condenser mic for acoustic instrument tuning
1/4" input and output jacks for in-line tuning

Product specs

Brand	Boss
Model	TU-12H Chromatic Tuner
Finish	White
Year	2000s
Made In	Philippines
Categories	Tuners

FAQs

What type of instruments can the Boss TU-12H Chromatic Tuner be used with?: The Boss TU-12H Chromatic Tuner is versatile and can be used with a wide range of instruments, including guitars, basses, and other stringed instruments. Its chromatic functionality allows it to tune any note, making it suitable for various tuning setups.
How accurate is the Boss TU-12H Chromatic Tuner?: The Boss TU-12H Chromatic Tuner is known for its high accuracy, providing tuning precision within +/- 1 cent. This level of accuracy ensures reliable tuning for both live performances and studio settings.
Does the Boss TU-12H Chromatic Tuner support alternate tunings?: Yes, the Boss TU-12H Chromatic Tuner supports alternate tunings. Its chromatic mode allows you to tune to any pitch, making it ideal for non-standard tunings and various musical styles.
Is the Boss TU-12H Chromatic Tuner suitable for use on stage?: The Boss TU-12H Chromatic Tuner is well-suited for stage use, offering a clear display and quick response time. Its durable construction and reliable performance make it a dependable choice for live musicians.
What power options are available for the Boss TU-12H Chromatic Tuner?: The Boss TU-12H Chromatic Tuner can be powered using a 9V battery or an optional AC adapter, providing flexibility for both portable and stationary use.

Videos

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Mano Guitar Oficial

Tuner Series BOSS - Chromatic Tuner - TU 12 - By Valdecir Emanoel

Mano Guitar Oficial

Retrospective Reviews #1 : Boss TU12 Tuner

Spencer Bruce

Reviews

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PROS

Precise tuning with analog needle for unmatched accuracy
Reliable and durable, withstands years of use
Excellent for bench use and setup tasks
Can be powered by 9-volt battery or integrated power supply
Long-standing industry standard, appreciated by professionals
Easy to read and responsive to each note
Preferred over strobe tuners for consistency by many techs
Continues to be sought after despite being out of production

CONS

Bulky design not ideal for pedalboards
Considered outdated by some users in favor of modern digital tuners

Owner Insights

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

Features and functionality

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The TU-12H is accurate to within ±1 cent, suitable for precise tuning needs.
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The TU-12 includes a built-in mic, which enhances its utility for tuning acoustic instruments and testing audio equipment without direct input.
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Comparisons

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The TU-3 is noted for superior performance with bass and low tunings, suggesting the TU-12H may share similar qualities.
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While the TU-12 is accurate, some users prefer the Polytune 2 for its higher accuracy (0.01 cent) and compact size, making it more pedalboard-friendly.
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Use cases and applications

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The TU-12 is versatile, used for tuning electric guitars, bass, pianos, and open tuning acoustic guitars. It's also applied in car audio and home theatre system testing.
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User experience

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Owners report long-term reliability, with some using the TU-12 for over a decade without issues, highlighting its durability and consistency.
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4.5 out of 5

Based on 3 Reviews and 13 Ratings

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jimmarchi1

41029

over 8 years ago

good needle tuner

this is my intonation tuner when I'm doing set ups.... always ahs been. I prefer it to strobe tuners unlike a lot of techs. Worth seeking out.

Roles:

Guitarist Bassist Keyboardist

Genres:

Electronic Orchestra Alternative rock

noah_quiles

142

over 9 years ago

Precise and legible

At first, I was skeptical about using the Boss TU-12H because every other guitarist I knew was using more modern-looking tuners like the Polytune, or other, newer Boss tuners. Fortunately, the TU-12H, despite its awkward fit on my pedalboard, has been extremely reliable, very responsive to every note played, and is never hard to read.