The MXR Phase 90 is kind of the benchmark for phasers. It’s been made famous by being THE phaser for Mr. Eddie Van Halen and a score of others. It’s a four stage phaser with matched jfets, meaning in plain talk that it sounds tits. It’s a smooth sounding phaser with a rich tonality. There are many versions since it was first introduced in the 70s: the original script logo version, the first block letter version, the originals with added LED indicator, and then the many re-issues since the Dunlop company bought the rights to the MXR name. The quality of the version, if you go by general opinion, is almost always commensurate with the age.
I was looking for and older one of these, and finally scored a block logo, non-LED version that I’ve dated as being made around 1978. It’s roughly the same kind Mr. Van Halen likely used. This is one of the “good ones.” I can definitely vouch for the sound, being that my Phase 90 sounds amazing on bass or guitar.
