The Turbo Tuner - A True Chromatic Strobe Tuner, Guitar Tuner, Bass Tuner, Violin Tuner, Cello Tuner, Musical Instrument Tuner

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	Introducing the M400 Turbo Tuner

		The M400 Turbo Tuner At A Glance A True Strobe Tuner Easy To Read LED Strobe Display Super bright display, visible in direct sunlight but dimmable for dim stages. True Bypass or Buffer Extreme Accuracy Fast note pickup User Defined Open Tunings User Defined Temperaments


The M400 is new for 2026 and has all the features of the ST-300 plus a switchable buffer. You can go true bypass or buffered, and the buffer has three modes of operation. You can also vary the brightness of the display. For the manufacturing, we have teamed up with Jim Dunlop. The design is pure Sonic Research, while they will be handling the production, marketing and distribution. The M400 will be in stores everywhere in late October. We are taking pre orders and will start shipping in late September.