XC Phase normal behavior?

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I built an XC Phase and it's working great. The phasing is nice and working as intended, the switches are working as intended as well.

There's just 2 things that MIGHT be an issue, but I couldn't tell you if they're normal behavior to begin with. I just did a quick test/trim pot tuning running straight into a studio monitor, which I know isn't ideal but it works lol. When I turn the pedal on the signal gets noticeably louder. Is this normal?

Also I'm using an HSH Ibanez and when using the middle and neck pickup everything is clinically clean but when going to the JB in the bridge position it seems to distort a little. Is this also normal behavior? I doubt the JB on its own could distort the input on my studio monitor, the input level is set fairly low.

Thanks!

 

[Guardians of the analog]

Volume jump on phase 90 is a common issue, I adjusted the mixing resistor to a trimmer to solve this issue

 

[brightlight]

Volume jump on phase 90 is a common issue, I adjusted the mixing resistor to a trimmer to solve this issue

Thank you. Which resistor would that be? And I assume you adjust it by ear till you have something close to unity volume?

 

[Guardians of the analog]

I used a trim it board and a series resistor. I used a 100k resistor and 50k trimmer so it was easier to dial in. Realistically around 120 or 125k was unity. Try touching a 750k in parallel to the 150k resistor and see if that makes it better. @blackhatboojum and I did some extensive testing of this last fall.

 

[Guardians of the analog]

For reference this is how I set up the series resistor and trimmer setup.

edit- one thing to keep in mind is that you may need to pick a value that's a compromise between the script and block mode because the amount of feedback in the circuit on either side of the switch may have a different volume level.

 

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Thanks for all this!

Any idea about the distortion issue? If it's even an issue?

 

[Guardians of the analog]

Thanks for all this!

Any idea about the distortion issue? If it's even an issue?

jfet based phasers will always have a bit of crunch, the block logo have more than the script in my experience. if it's overly distorted then something isn't right.

 

[brightlight]

jfet based phasers will always have a bit of crunch, the block logo have more than the script in my experience. if it's overly distorted then something isn't right.

Ok thank you. I wouldn't call it overly distorted, just not quite squeaky clean like it is with my neck humbucker and middle single coil. The JB is a good bit hotter than the Jazz and Quarter Pounder in that guitar so it makes sense now

 

[Rixroxx]

I built an XC Phase and it's working great. The phasing is nice and working as intended, the switches are working as intended as well.

There's just 2 things that MIGHT be an issue, but I couldn't tell you if they're normal behavior to begin with. I just did a quick test/trim pot tuning running straight into a studio monitor, which I know isn't ideal but it works lol. When I turn the pedal on the signal gets noticeably louder. Is this normal?

Also I'm using an HSH Ibanez and when using the middle and neck pickup everything is clinically clean but when going to the JB in the bridge position it seems to distort a little. Is this also normal behavior? I doubt the JB on its own could distort the input on my studio monitor, the input level is set fairly low.

Thanks!

It has something to do with trimpot adjustment. I also had the same experienced hearing that compressed sound (somewhat overdriven) sound.

Tune by ear, back it off a bit (counter clockwise) while listening back and forth between the bypass sound and while it is on. I suggest use the single coil on your guitar instead of the Seymour JB so you can better hear if the bypass sound is almost as matching the the sound of the phase. In my case, I can hear the quality of my Dimarzio singles even while the effect is on. Also, I didn't notice volume jump from bypass to effect on or maybe just a little volume jump.