ProCo RAT 2

“Works well with various amps, including Fender Twin Reverb and Marshall”— from the proco-rat-2 listing

Used together by 1 artist

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

Running the RAT into a Twin Reverb is a documented pairing — the amp's huge clean headroom gives the RAT's distortion somewhere to push without the amp breaking up on its own.

Comes later in the signal chain

The RAT's Filter control keeps it articulate even stacked on top of the Bluesbreaker's own breakup, from gritty low-gain grind to thicker saturation.

Comes later in the signal chain

Dumble Overdrive Special Amp Head leans into a clean amp's front end, precisely the platform ProCo RAT 2 wants

Comes later in the signal chain

The RAT's Filter control keeps it articulate stacked on top of the JTM45's own vintage breakup, from gritty low-gain grind to thicker saturation.

Comes later in the signal chain

The RAT's bright, cutting distortion pushes the Bad Cat Cub's chiming clean voice into gritty territory.

Comes later in the signal chain

Used together by 1 artist

One documented rig runs the RAT into a Deluxe Reverb — the amp's bright clean gives the RAT's dark, cutting gain somewhere focused to land.

Comes later in the signal chain

The RAT's Filter control lets it cut through even stacked with the Tweed Deluxe's own thick, woody breakup.

Comes later in the signal chain

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

ProCo RAT 2's own voicing points at a clean amp's front end, and Vox AC15CH Custom 15W Head delivers it

Comes later in the signal chain

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

Stacking the Screamer's mid-forward boost ahead of the RAT lets its own low-end roll-off tighten the signal before the RAT's Filter control reshapes it.

Comes earlier in the signal chain

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

Where this leans bright, MXR Micro Amp answers back warm

Comes earlier in the signal chain

Used together by 1 artist

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Pairing the Phase 90 with the RAT is a documented combo — running the phaser after the distortion keeps its sweep defined rather than smeared by the gain.

Comes later in the signal chain

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

A RAT 2 doesn't stack cleanly with Delay-Llama in the usual gain sense — the pedal's own analog delay repeats sit after the RAT's bright, cutting distortion instead. — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

ProCo RAT 2 leans this transparent tone toward low gain, which it doesn't make on its own

Comes earlier in the signal chain

ProCo RAT 2 leans this transparent tone toward low gain, which it doesn't make on its own

Comes earlier in the signal chain

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

MXR Dyna Comp's own bright character is the real reason this is worth trying

Comes earlier in the signal chain

ProCo RAT 2 leans toward low gain, and that's a real, usable character to pair with

Comes later in the signal chain