Artec Onboard Mod

QTP - Varitone Passive Tone Expander

This is the Artec Quadra Sound Controller Unit. The "QTP" is a modern version of the Vintage Varitone Switch. This Passive (no Battery Required) Mod features a 5-Way Rotary Selector, for a wide range of tones. Position 1 is a True Bypass for native operation. Each of the other 4 Positions of the QTP have the passive tone filters of the traditional RC methods that makes 4 different tones while very little level is reduced. You will receive the Unit itself, as it is pictured, as well as a wiring installation diagram (very easy to follow).

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