MXR M400 Turbo Tuner Strobe Tuner Pedal

MXR M400 Turbo Tuner

Dial in your guitar or bass with a responsive strobe display and Sonic Research tuning technology. The M400 combines precise pitch tracking with flexible routing for stage and studio pedalboards.

• Accuracy: ±0.02 cents; tuning range C0–C8.
• Chromatic mode and five programmable presets for up to 12 strings.
• Custom offsets: ±50 cents in 0.1-cent steps.
• Four display brightness settings.
• Selectable true or buffered bypass, with three buffered operating modes.
• 9V DC passthrough output and USB-C connection for updates and editing.

Specifications

• Reference pitch: A4 = 300.0–599.9 Hz.
• Power: 9V battery or 9V DC supply.
• Typical current: 48–73 mA.
• Dimensions: 112 × 61 × 48 mm.
• Weight: 192 g without battery.