AionFX Emerald (Boss PH-1r phaser)

[MichaelW]

Build Rating

5.00 star(s)

Was chatting with @Guardians of the analog about finding a phaser that can do the more subtle thing and he recommended, of course, a BOSS pedal....

I'm actually so glad Chris turned me onto all these Boss pedals I've built, I really like all of them!

This one is no exception. It's a JFET based phaser not unlike the Phase 90 but it's got a "resonance" controls which is actually a regeneration control that feeds part of the signal back into the circuit.

It also has a Depth control that can act as a pseudo blend control (although I'm still searching for a phaser with a true wet/dry blend control)

I ordered the matching set of JFETS from Aion when I grabbed the board. It sounds great!

This will be showing up in a demo at some point I'm sure.

Busy build, but fun build!

 

[drgonzo1969]

I love that enclosure and knob combination!

 

[Guardians of the analog]

When in doubt, ask WWBD? What would BOSS do lol this is a fantastic circuit that doesn't get enough love and can be very subtle or almost synth like depending on setting and signal chain placement. Good build Mike

 

[MichaelW]

One word of warning if you're going to build this. the 1UF caps need to be the small footprint WIMA's or MLCC's. The standard size won't fit.
Also, it's got some goofy components. Like a 15uf Tantalum and a 100n tantalum. I subbed a Film cap for the 100n Tantalum since it's just a power filter.

 

[Guardians of the analog]

At least you didn't off board wire the lower row of pots. I did so I had more space for graphics

 

[MichaelW]

Demo added here