Having had my Tannoy HPD speakers re-coned it got me thinking about the caps in the crossovers.They have been working away in their Berkeley cabinets since 1978 and I don't know to what extent they may have degraded in that time. So this is the question.Should I leave well alone or change them. I've seen lots of posts on the subject with many various opinions. If I change them I will want to replace them with something competent but not outrageously expensive. My schematic shows the following: 1x4.7 Mfd,1x1.5 Mfd,1x3.3 Mfd,in the HF circuit. 2x6.8 Mfd,1x3.3 Mfd, in the LF cicuit. Any suggestions of makes/types would be appreciated.I should add that I'm not really interested in trying a number of different types to test and see what I like best.I just want to put them in and forget about them for another 35 years,(I should be so lucky). Pete.