The WA Quantum chips are so good I had to add some to the basic mod and also bypass the output caps with my modded .33uf Wima caps. The sound is now crazy good. I had to raise the price of the basic mod to $450 for these upgrades but I must say.....we are in goosebump city already. It sounds so good I don't want to do more mods, BUT, I know it will sound even mucho better....so Off I GO into the Wild Blue Yonder. Should be about 10 days to finalize the all out mods.