The THD Quintet Tone Curve Products

The Quintet changes the entire tonal response of your pickups, altering their bass, mid and treble resonances in dramatic and highly musical ways.


All Quintet Tone Curve products are passive modules to be built into your guitar or bass (except the pedal version Quintet,) that permit you to select among 5 different frequency response curves to be applied to your existing guitar sound. They only work with passive, magnetic pickups in guitars, steel guitars and basses. They are made to greatly expand your tonal range.

The Quintet Tone Curve Board with no switch can be connected to your own switch, either rotary, blade (Strat-type), toggle, push-pull or push-push to select among up to 5 different tonal response curves, or can be hard-wired to blend in a single curve of your choice with your tone control as the blend knob.

The Quintet Tone Curve Board w/6-position Rotary Switch permits you to select among 5 different frequency response curves and also includes a 6th Bypass position.

Download the full product specs to read more about the Quintet Tone Curve line of products.


Shipping dimensions (built-ins): 7x5x5, 1lbs

Full product specs. (PDF)
Product manual. (PDF)

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