Kingsley Mason Valve Tone Builder - $500

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fairfax ave near melrose ave

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Rare hand-wired tube boost/overdrive pedal from boutique builder Kingsley. The Mason features a 12AX7 tube circuit with four controls including a unique input impedance control that interacts with your guitar's pickups for exceptional tone shaping and touch sensitivity.

Built in the compact Serf/Peasant enclosure with top-mounted jacks. Perfect for pushing amps into natural overdrive or as a foundational always-on tone enhancer. Exceptional volume knob cleanup and feel.

Excellent condition with light home use.

Melrose/Fairfax area
Cash, Zelle, Venmo, PayPal accepted (no fees). Local pickup preferred, can discuss shipping for serious buyers.

post id: 7900140495

posted: 2025-12-04 08:43

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Kingsley Mason Valve Tone Builder - musical instruments - by owner -...

Rare hand-wired tube boost/overdrive pedal from boutique builder Kingsley. The Mason features a 12AX7 tube circuit with four controls including a unique input impedance control that interacts with...