ProCo Fat Rat

gain stackingStacks two gain stages for more saturation than either produces alone. (mid-forward → high gain)

Put Friedman Dirty Shirley in front and the mid-forward tone leans further toward high gain

Comes later in the signal chain

gain stackingStacks two gain stages for more saturation than either produces alone. (mid-forward → high gain)

Revv Generator G20 20-Watt 2-Channel Tube Head stacks high gain on top of the mid-forward already here

Comes later in the signal chain

Comes later in the signal chain

Put Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt in front and the mid-forward tone leans further toward high gain

Comes later in the signal chain

Synergy SL2 Module stacks high gain on top of the mid-forward already here

Comes later in the signal chain

Put Marshall Studio JCM900 SN20H in front and the mid-forward tone leans further toward high gain

Comes later in the signal chain

Friedman BE-Mini Head layers high gain onto an already mid-forward signal

Comes later in the signal chain

Hughes & Kettner Warp 7 stacks high gain on top of the mid-forward already here

Comes later in the signal chain

Put Egnater Tourmaster Combo 4212 in front and the mid-forward tone leans further toward high gain

gain stackingStacks two gain stages for more saturation than either produces alone. (mid-forward → high gain)

Put Carl Martin Hot Drive'n Boost MK3 in front and the mid-forward tone leans further toward high gain

Comes earlier in the signal chain

gain stackingStacks two gain stages for more saturation than either produces alone. (mid-forward → fuzzy)

JHS Colour Box V2 layers fuzzy onto an already mid-forward signal

Comes later in the signal chain

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

Keep Caroline Guitar Company Parabola State Tremolo after ProCo Fat Rat in the signal chain, clear of ProCo Fat Rat's own gain stage

Comes later in the signal chain

shapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain.

What ProCo Fat Rat brings here leans toward full — that's worth building a pairing around

Comes earlier in the signal chain

Keep ProCo Fat Rat's full voice out front: Roland SDE-3000D goes after ProCo Fat Rat in the signal chain so its pristine voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

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

Keep Boss DD-2 Digital Delay after ProCo Fat Rat in the signal chain, clear of ProCo Fat Rat's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

Comes earlier in the signal chain

Matthews Effects Architect takes that crunchy character and pushes it toward clean boost

Comes earlier in the signal chain

NuX Drive Core Deluxe takes that crunchy character and pushes it toward clean boost