Overwhelming dynamic range, sparkling overtones, expansive sustain, a fast yet fat tone, and most importantly, a clean, pure drive sound. To embody all of these, we thoroughly examined every element of the sound, from the electrical circuitry and components to the materials, mass, and magnetic fields of the case and knobs. After repeated prototyping over several years, we finally completed the "STRING SLINGER" and "FIRE MIST." The ideal drive sound evokes two sounds: the American blues sound of the Black Face era, and the British rock sound typified by golden Plexiglas panels. The STRING SLINGER recreates that ideal American blues sound. With just the right amount of compression, its sticky clean to crunch sound creates the ultimate American blues sound. The moment you play the STRING SLINGER, you will experience the true meaning of the term "amp-like." *NEW HTS (Holistic Tonal Solution) Circuit: The Integrated Series features a newly designed HTS (Holistic Tonal Solution) circuit. Unlike conventional buffer circuits, this circuit maximizes the sonic characteristics of your guitar and amplifier while converting impedance, achieving both excellent sound and low noise. *FREE THE TONE Custom Knob: We developed a custom FREE THE TONE knob made from machined brass to suppress vibrations in the shafts and wipers of the semi-fixed resistors used in each control, and to suppress harmonic components that adversely affect the sound. The knob's diameter and weight were determined through repeated sound tests to obtain the ideal sound. It produces a clean overdrive with little muddiness, "distorted but not muddy." *Sound Casing Design: The length, width, height, and thickness of the casing all affect the sound of the overdrive pedal. For the Integrated Series, we carefully calculated all dimensions to determine the case size that best suits the ideal sound. The weight has also been carefully designed to prioritize sound. *IC Tone Plate: A FREE THE TONE-exclusive metal plate that covers the top of the IC, providing vibration isolation and shielding at the same time. It maximizes the characteristics of the IC while providing shielding to minimize noise contamination. * Passive tone circuit: The tone circuit uses a passive circuit that minimizes phase shift of the guitar signal. Main specifications: Input impedance: 1MΩ or more Output load impedance: 10kΩ or more Controls: LEVEL, TONE, DRIVE Terminals: 2 x 1/4-inch standard phone jacks (input, output), DC9V input jack (for connecting an AC adapter) Power supply: DC 9V battery (9V type 006P), AC adapter Current consumption: approx. 10mA Size: 98(W) x 120(D) x 51(H) mm (including protruding parts such as footswitch and jack) Weight: Approx. 640g (excluding accessories) Accessories: Warranty card, instruction manual, battery (9V type 006P), rubber feet x 4