Bass Master Standard 

CS-2 Compression Sustainer

Juggernaut Bass Rat

105Q Cry Baby Bass Wah

Canyon

M85 Bass Distortion

M281 THUMP BASS PREAMP

The beauty of the RAT2 lies in its versatility.  Used as a primary distortion, it excels at arena rock rhythm tones and soaring leads.  Do you have a powerful amp with too much headroom for the gig?  Let the RAT2 be your dirty channel.  Maybe you already love your amp’s distortion.  Use the RAT2 as a boost for solos and get the extra kick you need.
The RAT2 features the legendary RAT filter control.  Turn it to the right to roll off brittle high-end frequencies.  Having trouble cutting through the mix?  Turn it to the left and allow the natural brightness of your instrument to shine through.

Review by the JHS Show

Product Page

Review by delamar

Review by Guitar Chalk

Demo by intheblues

Demo by PMTVUK

Manual

Rat 2

The Brat signaled Pro Co’s entry into the economy priced effects pedal market. Still built in the USA, the BRAT featured a tone similar to its more expensive brothers, but was built with a less indestructible enclosure. The BRAT was adorned in a florescent purple and yellow color scheme. The “EQ” control was labeled Tone instead of Filter.

Demo by Blitz City DIY

Demo by shnobel

Official Website

Review by Harmony Central

Review by The Gear Page

Review by reddit /guitarpedals

Brat

This is the most classic sounding of all RAT distortion pedals. Think ’60s garage rock. Think early punk. Think about the bands that changed the sound of rock ‘n’ roll.
The key to the You Dirty RAT tone is in its germanium clipping diodes. Any pedal aficionado will tell you that nothing compares to the warm tone that these sought after components provide. This pedal is the perfect middle ground between distortion and fuzz, combining the characteristic cutting RAT tone with the warmth of a classic fuzz-tone.

Review by Ultimate Guitar

Review by musicradar

Demo by maruhachi08

Demo by Simon Smith

You Dirty Rat

SOLO

Discontinued vintage Bass Rat . From a buzz-saw Fuzz to Full Valve type Distortion

ProCo Bass Rat Review 

Review by zZounds 

ProCo - Juggernaut (Bass Rat)