The way the Ego has been designed, there is no coloration of your sound. The tone and blend controls allow you to balance the effect in such a way your signal path sounds so pure when the reality is that the pedal is working extra hard to make your playing tick like clockwork. Now, if you are not familiar wit the Ego Compressor, you will probably be thinking "What's a blend control?. The blend is a dry mix, that sweeps between a fully effected signal to zero effect across the sweep of the pot. There will be a point in that sweep that allows you all the compression you need to even out your playing, increase your sustain (if you want it) but without any detraction from you playing attack and feel. That, previously was just a dream, but now; that is a reality. When this amazingly simple yet devastatingly effective control is added with the tone control (that can add a little sparkle to the tone), when this pedal is used as "an effect rather than as an "always on (to control your solos or to fatten up your rhythms), a little extra bit of sparkle allows your guitar to sit in that place in the band mix that you have been trying to fit into but couldn't quite find. Just a littler higher, a little sweeter in the mix. This is the effect that you probably didn't realize you needed, but once you have used once, cannot imagine living without. Features: Hand made in the U.S.A. High grade film capacitors and resistors picked for their superior sound and response Completely true bypass Battery connection and 9v power jack (barrel plug like Boss) Power draw: 14mA Five controls - volume, sustain, attack, tone and blend control allows you to get sustain only - no noticeable effect on the attack of the note (great for playing with distortion) Tone control adds in high frequencies giving you plenty of clarity and 'jangle' 3.5" x 4.5" (63.5mm x 114.3mm).