MXR Turbo Tuner Effects Pedal - M400

MXR Turbo Tuner Effects Pedal

Professional true-strobe pedal tuner with exceptional accuracy, zero-latency response and flexible true or buffered bypass operation

The MXR Turbo Tuner Effects Pedal combines the core technology of the original Sonic Research Turbo Tuner with MXR's road-ready pedal construction. Its true strobe display responds directly to your instrument signal for immediate visual feedback, delivering professional tuning accuracy to within ±0.02 cents. With chromatic, guitar, bass and customizable tuning presets, extensive alternate-tuning support and selectable true or buffered bypass operation, the Turbo Tuner is built for precise tuning on stage, in the studio and at home.

Features

The large true strobe display provides fast, precise visual tuning without the lag or bouncing needle behaviour of conventional tuner displays. When a note is sharp the pattern rotates right, and when it is flat the pattern rotates left. As the instrument approaches correct pitch, the rotation slows, providing exceptionally fine tuning resolution.

The display offers four brightness levels for clear visibility in different lighting conditions. A central LED note display shows the note name in chromatic mode or the string number when using guitar, bass or other programmed open-tuning presets.

Six tuning presets provide considerable flexibility. Chromatic mode tracks all 12 notes, while dedicated Guitar and Bass modes recognize their programmed open strings. Three additional customizable presets are supplied with standard guitar, Drop D and 6-string bass tunings as starting points.

Each of the five programmable presets can support up to 12 strings and allows individual pitch offsets from -50 to +50 cents in 0.1-cent increments. The tuner can also accommodate drop tuning down to nine semitones and supports an adjustable A4 reference pitch from 300.0 Hz to 599.9 Hz.

The Turbo Tuner offers selectable true bypass or buffered bypass operation. In its default true bypass mode, the pedal mutes the output while tuning and completely removes the tuner circuitry from the signal path when bypassed. An internal switch activates a high-fidelity buffered mode with three selectable operating configurations for different pedalboard and signal-routing needs.

A USB-C connection provides access to firmware updates and editor software, while a 9V DC output can pass power to another compatible device. The pedal can be powered by a standard 9V battery, compatible 9V DC adapter or pedalboard power supply.

Specifications

• Product Type: Strobe Tuner Effects Pedal
• Tuner Type: True strobe
• Accuracy: ±0.02 cents
• Tuning Range: C0 (16.35 Hz) to C8 (4,186.0 Hz)
• Tuning Presets: 6
• Preset Modes: Chromatic, Guitar, Bass and 3 customizable presets
• Custom Preset Capacity: Up to 12 strings
• Pitch Offset Range: -50 to +50 cents
• Pitch Offset Resolution: 0.1 cent
• Drop Tuning Range: Up to 9 semitones
• Reference Pitch Range: A4 = 300.0 Hz to 599.9 Hz
• Reference Pitch Adjustment: 0.1 Hz increments
• Display: True strobe LED display
• Display Brightness: 4 levels
• Bypass: Selectable True Bypass or Buffered Bypass
• Buffered Bypass Modes: 3
• Input: 1/4 inch
• Output: 1/4 inch
• USB Connection: USB-C
• Power Input: 9V DC
• Power Output: 9V DC passthrough
• Battery Power: 1 x 9V battery
• Current Draw: Approximately 48 mA to 73 mA depending on display brightness
• Dimensions: 4.4 x 2.4 x 1.9 inches
• Weight: 6.8 oz / 192 g without battery

Why you should choose the MXR Turbo Tuner Effects Pedal

The MXR Turbo Tuner Effects Pedal is an excellent choice for players who demand fast response and extremely precise tuning from a pedalboard tuner. Its true strobe display and ±0.02-cent accuracy provide professional-level precision, while programmable presets, alternate-tuning support and adjustable reference pitch make it equally useful for standard instruments and specialized setups. Selectable true or buffered bypass, USB-C connectivity and rugged MXR construction complete a tuner designed for dependable use on stage, in the studio and on the road.