Amps that pair well with the Walrus Audio Fundamental Distortion

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (dark → glassy)

Marshall Bluesbreaker leans glassy right where the dark tone needs it

Comes later in the signal chain

pushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (crunchy → mid-forward)

Stack Fender Hot Rod Series Blues Junior 15W 1x12 Tube Guitar on top and a crunchy tone tightens toward mid-forward

Comes later in the signal chain