Hello-- After reading every previous post that I could about RIAA caps, I found two separate one that mentioned using Vitamin Q caps there... and one of the original authors mentioned having asked Jim Hagerman about the minimum voltage rating for these caps. According to the post, the reply came back that with a high quality cap like a Vitamin Q PIO, one can go as low as 250 to 300 VDC. My Hyrel Q/Vitamin Q 47nf (for C202)and my WestCap 1f (for C204)are 300VDC. I guess I just need a little hand holding and reassurance that 300VDC caps are going to be OK for the RIAA caps, C202 and C204. Thanks in advance for your time!