Skip to content

Refractor (Legacy)

Based On
KlonĀ® Centaur / KTR
Effect Type
Build Difficulty
Project Summary
A part-for-part replica of a mythical overdrive effect noted for its high-end tone and price.

Legacy PCB

Designed for the 1590B enclosure with side-mounted jacks, which some builders prefer. Bypass PCB (optional) sold separately.


In stock

Updated Version

The same circuit, but updated for the 125B enclosure format for a more streamlined build. The bypass switch PCB is integrated.


Out of stock

Currently unavailable, but we expect to have more soon. Sign up for the mailing list to be notified of restocks and new products.

Project overview

Aion Refractor - Klon Centaur Clone PCBThe Refractor project is a straight-up clone of the Klon Centaur and Klon KTR. The goal in designing this PCB was space efficiency: there’s no shortage of Centaur clones that fit in larger enclosures, but ours was made for the 1590B (1290NS)—though it’s just as much at home in a 125B if that’s your style.

One perennially tricky thing about building a Centaur clone is wiring the bypass switch. Due to its unique buffered bypass arrangement, for most clones you have to solder three resistors to the switch itself and it can be time-consuming. To compensate for this, we’ve designed a bypass board that fits standard 3PDT switches and has spaces for all three resistors. From there, all you need to do is run four wires from the bypass PCB directly to the main PCB and you’re done. It’s available separately as the Refractor Bypass.