BOSS TU-3: Accurate Guitar & Bass Tuner for Live

As an Amazon Associate I earn from qualifying purchases. Updated: March 28, 2026

BOSS TU-3 Chromatic Floor Tuner for Guitar and Bass | Industry-Standard Performance | Tank-Tough BOSS Stompbox Body | 21-Segment LED Meter | Accurate to +/- One Cent | Accu-Pitch Sign Function

Struggling to find a precise tuner for your electric guitar or bass? The BOSS TU-3 Chromatic Floor Tuner is a trusted solution for musicians of all levels. Known for its exceptional accuracy and rugged build, the TU-3 ensures you're always in tune, whether on stage or in the studio. This pedal features a bright 21-segment LED meter for easy readability, even under stage lights.

$103.50$109.99Save $6.49 (6%)

Price from Amazon • As an Amazon Associate I earn from qualifying purchases.

View on Amazon ↗

Key Features & Benefits

High-precision chromatic tuner accurately tunes your instrument to within +/- one cent.
Durable BOSS stompbox design built to withstand the rigors of touring and live performances.
21-segment LED meter with adjustable brightness and a dedicated High-Brightness mode for outdoor visibility.
Accu-Pitch Sign function provides clear visual feedback, indicating when your instrument is perfectly in tune.
Input and output jacks allow for seamless integration into your pedalboard setup.
Powered by either a standard 9V battery or a DC adaptor (sold separately).

Pros & Cons

Pros

✓ Exceptional accuracy and reliability
✓ Rugged build quality designed for heavy use
✓ Bright, easy-to-read LED meter with brightness control

Cons

✗ May be too advanced or feature-rich for beginners.
✗ Limited to electric guitar and bass tuning; not suitable for acoustic instruments.

Common Use Cases

Tuning electric guitars quickly and accurately on stage between songs.
Adjusting bass strings with precision for optimal sound quality in rehearsals and recordings.
Adding to your pedalboard setup for seamless tuning integration.

Who Should Buy This

This tuner is ideal for experienced guitarists and bassists who demand precise tuning, especially in live performance settings. It's also a great choice for studio musicians looking for reliable accuracy during recording sessions.

Not ideal for: Those looking for a beginner-friendly or affordable tuner might consider alternatives.

Good to Know Before Buying

💡

The BOSS TU-3 Chromatic Floor Tuner is priced slightly above average for its category due to its high-quality components and professional features. Consider your budget and expertise level before making a purchase.

Frequently Asked Questions

Is this tuner suitable for beginners?

While it's a reliable option, some users may find the feature set overwhelming. It's recommended for those already familiar with tuning equipment.

Can I use this tuner with acoustic guitars?

No, this product is specifically designed for electric guitars and basses. Acoustic guitar tuning might require a different type of tuner.

Prices change frequently. See the latest deal on Amazon.

Check Price on Amazon ↗