Help with Zendrive stripboard build

[fuzz]

I’ve built this from the Dirtbox layouts layout.
I’m not getting any clipping, and cannot for the life of me see what is wrong. I can remove the drive pot and the thing sounds the same

I’ve confirmed there are no stray solder bits connecting rows (there looks to be one in the last pic,
Bottom left but it’s been dealt with and no change).

 

[fuzz]

Using a TL072 because it’s supposed to be a replacement for the AD712…

 

[jimilee]

Are you grounding Vol 1?

 

[fuzz]

Yes

 

[jimilee]

Well if you cleaned the tracks and checked the soldering up close, that all I got. Sorry

 

[spi]

double check the pinouts of the mosfets--that's bitten me a few times.