MXR M400 Turbo Tuner

The MXR Turbo Tuner is the only tuner you’ll ever need. Built around the core engine of the original Sonic Research Turbo Tuner, this pedal brings modern versatility to the gold standard in strobe tuning. Sonic Research engineered it to deliver the same tour-grade precision and speed as the original, accurate to a fraction of a cent. It’s all built to the roadworthy standard that defines both Sonic Research and MXR.

• Dimensions 4.4" (11.2 cm) x 2.4" (6.1 cm) x 1.9" (4.8 cm) HxWxD
• Weight 6.8 oz / 192 g (without battery)
• Bypass True Bypass / Buffered Bypass (internal switch selectable)
• Tuning Range C0 (16.35 Hz) to C8 (4,186.0 Hz)
• Accuracy ± .02 cents (calibrated crystal oscillator)
• Reference Pitch A4 = 300.0 Hz to 599.9 Hz in .1 Hz increments
• Connectors Input, Output (1/4") 9V DC In, 9V DC Out, USB-C
• Power Supply 9 volts DC
• Current Draw 48 mA (min brightness) to 73 mA (max brightness) typ.