Name: Boss Chromatic Tuner/Power Supply
Brand: Boss
SKU: BSTU3
Price: 89.99 USD
Availability: BackOrder

Boss TU-3

Boss Chromatic Tuner/Power Supply

Boss

Generally ships in 7-14 days, subject to availability

Special Order

Generally ships in 7-14 days, subject to availability Estimated to Ship: 07/25/2025.

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Musical Instruments

Instrument Accessories

Instrument Trainers & Tuners

Boss Instrument Trainers & Tuners

Boss TU-3 

Get accurate tuning with the durable Boss Chromatic Tuner. Wide range, +/- 1 cent accuracy. Includes manual & battery. Shop now for reliable performance!

After years of being the world's top-selling stage tuner, the BOSS TU-2 has evolved into the new and improved BOSS TU-3 Chromatic Tuner/Power Supply. This high-quality, professional-grade tuner is housed in a durable BOSS stompbox body, designed to withstand the rigors of on-stage use. The TU-3 features a user-friendly, smooth 21-segment LED meter with a High-Brightness mode, ensuring clear visibility even in the harshest outdoor glare. This accurate tuner offers the flexibility to choose between Chromatic or Guitar/Bass tuning modes, catering to a wide range of musical instruments. Enhancing its usability, the TU-3 incorporates the Accu-Pitch Sign function, providing visual pinpoint tuning verification. This ensures your instrument is perfectly tuned every time. Additionally, the tuner includes a convenient Note Name Indicator, capable of displaying notes for 7-string guitars and 6-string basses, making it an ideal choice for diverse musicians. For those who prefer a different tuning style, the TU-3's Flat-Tuning mode can support up to six half-steps, offering versatility for various musical genres. Portable and reliable, the BOSS TU-3 Chromatic Tuner/Power Supply sets a new standard in tuning technology, making it an essential tool for every guitarist or bass player.

Boss Chromatic Tuner/Power Supply

Key Features

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Boss Chromatic Tuner/Power Supply

Save 5% Every Day†

Key Features

Protect your gear with Adorama Protect.* Learn more

Save 5% Every Day^†