Caesar Chorus Bass Mod

A

Anthonyj

Member
I Couldn't find this so I figured I would add it. please tell me if I was wrong.

I was on Aion Fx's site and came across the Azure chorus thinking it might be fun since it was based on the CE-2. In the instructions he mentions that between the CE-2 and CE-2b the only difference other than a Mix knob is a single capacitor value. I remembered that I already built and use the Ceasar Chorus which is a Juilia which itself is based on the CE-2. Both of the schematics lined up, so it was easy to find what to change.

The change is C17 from 33nf to 12nf.

This change will limit the low-end frequencies that are modulated in the circuit and keep the bass from disappearing when the pedal is engaged.

I built a little board around a SPDT switch I had laying around to change the values back and forth to mess with it.


20250120_201939 (2).jpg
 
COOL!

Thanks for the tip.

Not only do the schematics match up, so does the REFDES: Aion C17 = PPCB C17 !

Easy-peasy.




Which do you prefer the 33n or 12n...
BASS?
GUITAR?
 
Thanks Anthonyj.

I'm thinking of whether or not I'll put C17 on a toggle; I don't really play guitar much, mainly using it on bass — but if there's a substantial enough difference.

I've got a brown Boss CE-2B, and while the guitar sounds good through it, I've never had the opportunity to A/B it with the guitar version.
 
itstimtime said:
What about also increasing input and output coupling caps C2 & C28 to allow more bass through?
Click to expand...

Is that even needed?

I haven't calculated the frequencies that are passing through the stock circuit; if you open up more bass to pass through you might overload some part of the circuit downstream and get nasty distortion (or maybe good distortion?).

Two schools of thought come to mind:

Boss would've done it already: 'cause the engineers know what they're doing.​
Boss would NOT do it already: 'cause economies of scale make it easier to replace one small part than many.​
 
Feral Feline said:
Is that even needed?

I haven't calculated the frequencies that are passing through the stock circuit; if you open up more bass to pass through you might overload some part of the circuit downstream and get nasty distortion (or maybe good distortion?).

Two schools of thought come to mind:

Boss would've done it already: 'cause the engineers know what they're doing.​
Boss would NOT do it already: 'cause economies of scale make it easier to replace one small part than many.​
Click to expand...
Idk lol I’m just bored at work thinking about things
 
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