FREQUENCY: This controls the frequency range of the filter. The original control quickly ran away and resonated quickly, the Changeling reins that in for an even keeled sweep across all knob positions, from a low rumble to a high-pitched squawk without killing your (or your bandmates’) eardrums.

DEPTH: This controls the intensity of the filter effect and its touch sensitivity. Turning it up increases the sensitivity for fingerstyle or keys players and turning it down gives you the response you’re after if you play with a pick. This also helps tame the heat of incoming dirt boxes as well.

The Changeling requires a 9V center-negative adapter ONLY, drawing very little current at just 1mA. Plugging in anything other than this will at best cause the unit to function incorrectly, or at worst, brick the pedal. That just ain’t it, chief. Please ensure the use of an adapter with the above specifications, or your warranty may be at risk due to improper powering.

Having done just over 70 unique Kula’s Cabinet blog posts spanning over 60 years of guitar equipment history, we’ve encountered a lot of questions and comments about individual pieces of gear, but there is one overarching inquiry we’ve received far more than any other: “OK, but what do they actually sound like?”It’s a very fair question, one that really has no immediate and good answer. For as many people lavish praise on internet gear demo channels, there are as many detractors that don’t want to hear people that play in their style. So we had an idea: why not let you decide?We’re relaunching our Cabinet articles along with a parallel series, conveniently called the Cabinet Series. With it, we aim to supply you with the same tools used by popular artists throughout history, with quality-of-life upgrades as we see fit. In other words, all of the good and none of the bad, unless of course it interferes with the character of the original.We’ll be revamping some of our pieces to reflect this as well, supplying you with new information, starter settings, and specific tracks where you can hear how the greats used their stuff. See you in the Cabinet!