Hi, I have a beomaster 5000 that I recapped a little while ago; although the sound was much improved I did hear a little strange distortion in the vocals on one of my records and it got me worried that I may have accidentally used one or two low ESR caps or something like that. That may also not be the case but it reminded me that a few people have said to make the BM5000 sound better to change some electrolytic caps for polypropylene? I believe at one time there was a post about this but I couldn’t find it in the archive. I wondered if anyone could point me in the direction of which caps in particular benefit from the swap and what brand/range of polypropylene caps I should be looking at? Thanks, Martyn