Sparkle

Cornerstone Music Gear designed the Sparkle for players who need an overdrive that follows their dynamics without touching a knob mid-song. It's engineered to be extremely touch-sensitive while keeping your guitar's character completely intact.

The 9V/18V internal switch lets you choose standard operation or doubled headroom for guitars with hotter pickups. With Bass and Treble at noon, the circuit produces a flat frequency response—adjustments always sound full and defined, never muddy or harsh. Low gain settings deliver transparent boost; higher settings add singing sustain.

Controls are simple: Volume, Gain, Bass, and Treble. The Sparkle responds beautifully to pick attack and volume knob adjustments, cleaning up or pushing into saturation based purely on how you play. True bypass, handmade in Italy.