BOSS TU-30 Chromatic Tuner & Metronome

BOSS TU-30 Chromatic Tuner & Metronome

The BOSS TU-30 Chromatic Tuner & Metronome combines accurate instrument tuning and a versatile rhythm trainer in one compact, battery-powered practice tool. It supports chromatic, guitar, bass, and flat tuning, while a built-in microphone and 1/4" instrument input accommodate both acoustic and electric instruments.

Players can tune across E0 to C8 with ±1-cent internal accuracy and adjust the A4 reference pitch from 435 to 446 Hz. Flat tuning extends from one to five semitones below standard pitch, while the Accu-Pitch function provides an audible indication when the target pitch is reached. A reference-tone function also supports tuning by ear.

The integrated metronome covers tempos from 30 to 250 BPM with multiple rhythmic patterns and beat settings from 0 to 9. An LCD screen and tuning-guide LEDs provide clear visual feedback during practice. Two AAA batteries power the compact unit, making the TU-30 convenient for lessons, rehearsals, warmups, and everyday instrument maintenance.

Key Features

• Tuner and Metronome: Combines two essential practice functions in one compact portable device.
• Multiple Tuning Modes: Supports chromatic, guitar, bass, and flat tuning for a variety of instruments and setups.
• Accurate Pitch Detection: Measures from E0 to C8 with ±1-cent internal tuning accuracy.
• Built-In Microphone: Tunes acoustic instruments without requiring a cable connection.
• Instrument Input: Accepts compatible electric guitars, basses, and other instruments through a 1/4" input.
• Accu-Pitch Feedback: Provides an audible indication when the instrument reaches the correct pitch.
• Versatile Metronome: Offers tempos from 30 to 250 BPM, multiple rhythm styles, and selectable beat values.
• Portable Battery Operation: Runs from two AAA batteries for convenient practice away from AC power.

Technical Specifications

Tuner

• Tuning Modes: Chromatic, Guitar, Bass
• Flat Tuning: Regular tuning or 1 to 5 semitones down
• Reference Pitch: A4 = 435 to 446 Hz
• Default Reference Pitch: A4 = 440 Hz
• Tuning Range: E0 (20.6 Hz) to C8 (4186 Hz)
• Internal Tuning Accuracy: ±1 cent
• Accu-Pitch: Audible confirmation when correct pitch is reached
• Reference Tone: Supported for tuning by ear
• Acoustic Instrument Detection: Built-in microphone

Metronome

• Tempo Range: 30 to 250 BPM
• Beat Range: 0 to 9
• Rhythm Styles: Quarter note, eighth rest and eighth note, eighth note, triplet, triplet with center rest, sixteenth note, clave 3-2, clave 2-3
• Metronome Sound: Built-in speaker
• Metronome Volume: Fixed

Connections and Display

• Instrument Input: 1/4" input jack
• Input Impedance: 680 kOhm
• Display: LCD
• Tuning Indicators: Tuning Guide LEDs
• Built-In Speaker: Yes
• Stand: Bottom slot accepts a coin for use as a support stand

Power

• Power Supply: 2 AAA batteries
• Current Draw in Metronome Mode: 15 mA
• Current Draw in Tuner Mode: 8 mA with A4 = 440 Hz input
• Expected Carbon-Battery Life: Approximately 50 hours with continuous A4 input
• Automatic Power Off: Approximately 10 minutes without button operation

Physical Specifications

• Width: 3.6"
• Depth: 2.4"
• Height: 1"
• Weight: 0.2 lb including batteries

What's In the Box

• 2 AAA batteries
• Owner's manual
• Safety and important-notes leaflet