Hello, I’m getting ready to build yet another zkit 1, this time with my friend’s son (posted our zkit 4 build in that section).
I have two questions regarding the capacitors:

1. Is there a reason to use electrolytics in the power supply section vs. film caps? I have both on hand but wondered if there is an advantage of using electrolytic caps when I have higher grade poly caps on hand?

2. I have both Miflex KFPM and KPCU caps on hand, but not enough to use all of one type or the other. Any recommendations where I would experience better results from which? KPCU for the coupling cap? KPCUs in the power supply and KFPM for coupling?

Thanks BobC.  I've read that the synergy of running the same caps across the power supply is beneficial so I was wondering what makes the bigger difference, having all the same bypass caps across the power supply or using a mixture of caps there and making sure I have the KPCU as a coupling cap.

The KFPM's are fairly inexpensive and really nice.  I'd highly recommend trying them (at least the 0.1's as bypass caps).  Considering the cost of shipping, overall adding a little cost to get KFPMs is a relatively small additional cost.

Thanks for the input.  I'll try a few differnt options and listen, swap, listen, repeat.  It's kind of nice working on this project because I don't NEED this zkit, so I have plenty of opportunity to experiment (and use up my extra parts inventory.).

I’ve found bypassing with miflex caps to have a profound impact. The are pretty thin initially but after a few hundred hours the just explode with vivid detail.