Adding a Input Level Pot to a Ibanez DE-7

[doitle]

About a year ago I got my dad this Delay/Echo Pedal: Ibanez DE-7. It works alright but whenever he stopped using it after a little while because he said it sounds horrible. I managed to sort of figure it was the input level. If you run the guitar straight into it and then out of it to other pedals it sounds ok but if you run other pedals in front of it it sounds terrible. I think the level coming out of the Big Muff or the TS is just too high for the delay. What I was thinking was... What if I just added a pot in front of it to bleed some of the signal to ground? The only thing I'm not sure of is if I should be adding a pot in front of that first 1Meg resistor or replacing the 1Meg resistor with a 1Meg Pot... That would be changing the input impedance then I think though...

http://www.ibanez.com/parts/2004_PARTS/electronics/tonelok/circuit%20diagram/DE7-01.pdf

That is the schematic.

Would this work at all? Drilling an extra hole in the case wouldn't be a problem and there must be some room in there for an extra pot. This pedal was only 40$ but I'd like him to be able to use it.

In short, thoughts, suggestions, ideas about this?

[anchovie]

Why not turn down the volume control on the TS or Big Muff? That seems to me to be the most obvious way to reduce the signal going in!

[doitle]

I agree that that makes the most sense But my dad is one of those all knobs maxed kind of guys. I was actually even thinking of maybe doing it as a trimpot and just introducing a set attenuation to try to keep it from clipping horribly. So that I could just say try out your pedal I bet it sounds better and he would agree.

Maybe I'll just try doing a bit more education on how the signal levels coming in and out of the pedals are effected and that the digital pedal can't take a very large input swing...

[anchovie]

I agree that that makes the most sense But my dad is one of those all knobs maxed kind of guys. I was actually even thinking of maybe doing it as a trimpot and just introducing a set attenuation to try to keep it from clipping horribly. So that I could just say try out your pedal I bet it sounds better and he would agree.

Maybe I'll just try doing a bit more education on how the signal levels coming in and out of the pedals are effected and that the digital pedal can't take a very large input swing...

The problem with a trimpot in the delay is that it will also reduce the signal level if the guitar is run into it clean, making it less than unity.

Take the knobs off his distortions and move them so that the marker makes it look like it's on full when really it's much quieter.