Hours on Jensen Electrolytic I would guess 25-30++.
When doing the midrange speaker comparison cap test I found the vintage foil in oil to be the second best to Duelund and the difference not huge. (this confused and shocked me)
I once said after putting the Duelund tweeter caps in the speaker I could not believe I was listening to digital.
When the Jensen is in the amp power supply the sound is digital! The noise level is for sure up. Sound tense and dry.
I am of the belief it is the liquid. The vintage electrolytic cap is bigger for the same volume. More liquid? In making caps smaller tighter and no doubt drier is there not a price to pay? If Duelund adds more oil on there wire and claim improvement would not having less electrolytic (goo) make sound drier?
At this point this is one of the biggest differences in caps I have heard. (not in the new caps favour either) Yes more bass but much more noise.
At the begining of the thread I put in Sonicaps in one speaker and left the other vintage foil and oil. My wife came to listen with absolute no knowledge of which was which and was floored how much better the one was. She said that is amazing! You should be thrilled, problem was she was pointing to the vintage foil in oil not the new caps. (with the hours on them)
I think that is why some guy pays $15k for some old amp that may go up in smoke any time. Is it the old electrolytics?
http://www.audiogon.com/cgi-bin/cls.pl?ampstube&1291419107&/Marantz-Model--9-(Original)-tu
Tempo claims that ASC caps beats all electrolyics PERIOD. I can imagine this.
Now what about foil in oil in the power supply? I have already looked at Duelund but too pricey an experiment for me.
As it stands now the vintage goooey sounding electrolytic is going back in and Duelund caps and oily wire everywhere.
I will put at least 100+ hours on the power supply cap to be sure.
When doing the midrange speaker comparison cap test I found the vintage foil in oil to be the second best to Duelund and the difference not huge. (this confused and shocked me)
I once said after putting the Duelund tweeter caps in the speaker I could not believe I was listening to digital.
When the Jensen is in the amp power supply the sound is digital! The noise level is for sure up. Sound tense and dry.
I am of the belief it is the liquid. The vintage electrolytic cap is bigger for the same volume. More liquid? In making caps smaller tighter and no doubt drier is there not a price to pay? If Duelund adds more oil on there wire and claim improvement would not having less electrolytic (goo) make sound drier?
At this point this is one of the biggest differences in caps I have heard. (not in the new caps favour either) Yes more bass but much more noise.
At the begining of the thread I put in Sonicaps in one speaker and left the other vintage foil and oil. My wife came to listen with absolute no knowledge of which was which and was floored how much better the one was. She said that is amazing! You should be thrilled, problem was she was pointing to the vintage foil in oil not the new caps. (with the hours on them)
I think that is why some guy pays $15k for some old amp that may go up in smoke any time. Is it the old electrolytics?
http://www.audiogon.com/cgi-bin/cls.pl?ampstube&1291419107&/Marantz-Model--9-(Original)-tu
Tempo claims that ASC caps beats all electrolyics PERIOD. I can imagine this.
Now what about foil in oil in the power supply? I have already looked at Duelund but too pricey an experiment for me.
As it stands now the vintage goooey sounding electrolytic is going back in and Duelund caps and oily wire everywhere.
I will put at least 100+ hours on the power supply cap to be sure.