Each of these pedals is built and designed with an independent Boost function to provide up to a 21dB jump in level only--a big difference because these pedals do not automatically add extra distortion and unwanted coloration to your already carefully sculpted guitar and/or bass tone.

All four models have high impedance input circuitry to not load your guitar's pickups and a low output impedance to drive long cables back to your amp without tone loss. Each have separate Level, Tone, Drive, and Boost amount controls plus silent switching for easily incorporating them into any pedal board or, more importantly, any playing style. All good but the fun starts with the extra features!

The Boost Distortion model features the SAG control that adds tube amp pick response while the Boost Overdrive model jumps up the mid-range frequencies and upper harmonics with the SPARKLE control.

My favorite is for germanium transistor lovers, Boost Fuzz. It takes full advantage of the unique sound quality of those primeval solid-state amplifier circuits of the 50-60's but, unlike those primitives, this pedal operates consistently and is fully temperature compensated.

The Bass Boost Fuzz has a wide range of sounds from the fat, gritty sounds of a '60s fuzz bass to the 'machinations' of industrial metal mayhem. It features the +CLEAN control as a way to mix some of the original input to the pedal's output for additional clarity--or NOT!