This bright orange pedal practically defined the classic phase shifter sound. This one-knobbed orange wonder has played its part in nearly every genre's effect happy moments. The Phase 90 has been stomped and swirled through 70s jazz fusion, 80's hard rock, and even 90s grunge. The effect is very pronounced and always ready to sweep your signal into action. The newer models are remarkably close to older models in terms of overall sound and durability. There are some advantages and disadvantages to buying new or buying vintage. For example, the older units are a little smoother but tend to be a noisy while the newer units add a tinge of distortion on faster settings but adds LED status and AC power. Take this into consideration when shopping around but all in all, you really can't go wrong with all the various versions of the Phase 90.