Tubes for ARC PH3SE

ARC tubes reflect that their units are 'cookers' and their tubes tend to last at least 50% longer. then other brands. So, if you do change tubes, they may have a much shorter life. Whether that is okay with you will depend on the improvement in sound, and your budget. I have a 3SE and have rolled the tubes to no real significant change. But, depending on what else is in your chain, you make hear differences, some good, some bad. Enjoy.

I had a ph5 which I tubed rolled different NOS 6922 in. there was quite a difference in all aspects of presatation, the soundstage improved.... top to bottom expanded.. I would expect much of the same with yours
Dennis

I really like Siemens e88cc in mine.