ProCo RAT 2: The Legendary Distortion Pedal That Defined Alternative Rock Iconic Distortion Tone Used by Generations of Great Musicians

The ProCo RAT 2 is a legendary distortion pedal whose gritty, biting tone defined the sound of 1980s and 1990s alternative rock. Priced at approximately $99, this budget-friendly classic delivers genuine character and aggressive distortion that countless professional musicians rely on. The RAT’s characteristic aggressive midrange and biting distortion make it instantly recognizable—from The Smashing Pumpkins to Radiohead to contemporary alternative and indie bands. Despite its age, the RAT 2 remains relevant and desirable, proving that sometimes a simple, focused design with genuine character never goes out of style.
Specifications
| Specification | Details |
|---|---|
| Type | Distortion |
| Controls | Volume, Distortion, Filter |
| Bypass | True Bypass |
| Power | 9V DC (30mA) or Battery |
| I/O | 1/4″ Input/Output |
Tone and Sound Character
The RAT 2’s tone is defined by aggressive, biting distortion with pronounced midrange presence. The distortion is gritty and raw, with character that ranges from light crunch to maximum saturation. The filter control is unique—it’s not a traditional tone knob, but rather a distortion circuit control that shapes the character of the distortion itself from darker and smoother to brighter and more aggressive. The volume control manages output level without affecting distortion character, letting you dial in precise tone.
What makes the RAT legendary is its bold character and refusal to apologize for aggressive midrange. In an industry trending toward transparent, neutral effects, the RAT embraces its personality. Light settings deliver aggressive overdrive with cutting midrange. Medium settings produce medium-heavy distortion perfect for rhythm work. Maximum distortion delivers fuzzy, aggressive tones ideal for leads and solos. The filter control provides unexpected tone-shaping flexibility—even at maximum distortion, dialing the filter back creates usable, clear tones.
Features and Versatility
The three-knob design keeps the RAT simple and focused. True bypass preserves tone when off. The minimal enclosure is iconic and instantly recognizable. The circuit is simple, robust, and reliable—the RAT has been produced continuously since 1982 with minimal changes. The ultra-low power draw means batteries last for years. The affordability means new players can own a legendary tone for under $100.
The RAT excels in alternative rock, indie, and experimental contexts where aggressive character is valued. The biting distortion cuts through band mixes and remains prominent on stage. The character makes it unsuitable for subtle, transparent gain, but perfect for bold, unapologetic distortion. Session musicians keep it as a secret weapon for adding attitude and character when needed.
Who Should Buy the ProCo RAT 2
The RAT 2 is ideal for players seeking genuine character and aggressive distortion, musicians interested in alternative rock and indie tones, and anyone wanting a legendary pedal at an accessible price. If you want bold, confident distortion that refuses to apologize for its personality, the RAT is a no-brainer purchase. Avoid this only if you want transparent, neutral distortion or prefer subtle coloration.
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Frequently Asked Questions
Is the RAT 2 good for metal?
The RAT works better for alternative and indie metal than extreme metal. The aggressive midrange and character shine in less-heavy contexts. Metal players often use it as a tone-shaper before heavier distortion rather than as their primary gain source.
Does the filter control actually do much?
Yes, the filter dramatically affects tone character. Dial it counterclockwise for aggressive brightness, clockwise for smooth darkness. It’s not just a subtle tone control—it’s a significant tone-shaping tool that completely transforms the distortion character.
Can you run this on batteries?
Yes, the RAT can run on a standard 9V battery. The ultra-low 30mA power draw means batteries last for extremely long periods—many players report years of gigging on a single battery. This makes the RAT ideal for minimal setups or players preferring battery power.
