The Arion SCH-1 and SCH-Z are both guitar pedals produced by the company Arion. The main difference between the two is that the SCH-1 is a stereo chorus pedal, while the SCH-Z is a stereo chorus and vibrato pedal.
The SCH-1 is a versatile stereo chorus pedal that provides a wide range of chorus sounds, from subtle to dramatic. It has controls for rate, depth, and level, allowing you to adjust the effect to your liking. The stereo output allows for a wider soundstage and more natural sound.
The SCH-Z, on the other hand, is a stereo chorus and vibrato pedal that combines the functionality of both effects in one pedal. It has controls for rate, depth, level, and a switch for selecting between Chorus and Vibrato. It also has a stereo output, allowing for a wider soundstage and more natural sound.
The additional feature of Vibrato makes it more versatile and allows more creative options in terms of sound.
In summary, the Arion SCH-Z is more versatile and has more features than the SCH-1, but the choice between the two pedals will ultimately depend on your specific needs and preferences.