The clean channel shouldn't be distorting, obviously. I suspect the old tubes are the culprit.

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Axes: Fender Custom Shop Strat (Fred) / MIJ Strat (Fralin '54s) / MIJ Tele / Dillion LP (Fralins) / Dot (SD Ants) / PRS: McCarty Brazilian / Custom 22 Rosewood Artist / Archtop II
Rig: -> 535Q wah -> DOD FX56/ProCo RAT -> E13 TBD -> loop { Digitech RDS 3.6, phase inverted { dry -> 3-knob EHX Bad Stone -> ADA Rocket 20}} ->
Mesa Maverick, or GarageBand.
* BC Rich ST3 (SD Custom) -> Boogie Mark IIC+; 2 1x12 EV 12S's
I gave the Maverick to nyrkickazz1, and man, I miss that amp. IT SURVIVED! I have it back now.

Other stuff: a Ric 360/12 in baby blue; an '83 MIJ Squier P-bass; a Martin HD-28V; and now I have a Mesa Mark IV long head too.
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"Arise, goddess; invest thyself in these, thy shining raiment, and ensconced in Phaeton's chariot float your starréd way to the Liquor Control Board of Ontario."