#2581
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The Cary Audio stuff has had a reputation of being a bit romantic and soft on top: more like traditional Conrad Johnson than Audio Research. I suppose this is what he would refer to as the old man's sound. The cap upgrades available for Cary include Jensen PIO caps. These are very good (I have them in a custom triode amp) but are something you would expect to find in a more traditional SET amp. I would follow Florida Boy's approach and begin rolling caps in the LP-27a. It has more room and you can use the romantic sound to balance the drier PSE. You might even find room to squeeze in a pair of Duelands, but no guarantees. You could also put in a pair of silver foil Jensens, but they would increase the cost of the preamp by 50%. |
#2582
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#2583
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#2584
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The LP 27a coupling caps are 1.5uf, quite large and more expensive than the couplers in the amp(s). It was tough fitting the Jupiters, $118 each, in it. The couplers in my amp are .022uf and Jupiter's are $60 each. I'm not using Jupiter's there though. Caps are like spice and we all like different things. My present speakers are Klipsch and PIO type caps work best for me. With another speaker I may prefer something else. It's all about synergy and rolling caps can be less expensive than rare old production power tubes. Also, the most expensive ones may not work best for you. I have a pair of .022uf Jensen copper foil ceramic tube in the parts box and will try them in the amp eventually. Roscoe, be bold and daring. Try the Jupiter copper foil in your triode amp. ;-) Last edited by FloridaBoy; 09-28-2016 at 05:55 AM. |
#2585
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I purchased the wrong spec cap for my 6V6 amp. Currently I have .01uf Auricap in place. Does anyone know the implications of putting .022uf RelCap TFT in their place?
I am however looking at ordering .01uf Vcap cutft, smaller sizes are actually not that expensive. This will leave the RelCap TFT .022uf, RelCap TFT .1uf and .22uf Jupitor Copper foil to play around with bypassing the 1.5uf Audyn Copper Max in my LP-2. Like you said, some speakers might prefer a different cap compliment than others. That is dependant on wether they let me return the 0.1uf RelCap TFT pair.... |
#2586
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I have used the Vcap cutft and liked it. They do take forever to settle in. True, no ones system is identical so there is no perfect tube or cap. |
#2587
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The coupling caps in the PSE are Jantzen Silver Z 1200V 0.33uF. That is actually not a bad value from a cost or size perspective. Alternatives include the Jupiter 600V Copper Foil and the Dueland 400V RS. Jantzen Silver Z Cap 1200V 26 x 45 mm $16 Jupiter Copper Foil 600V 20 x 52 mm $60 Dueland RS Copper RS 400V 32 x 37 mm $88 I'm not sure the Jupiter or Dueland caps are 4-6 times as good as the Jantzens, but they certainly will be different. The change will cost no more than some NOS tubes, so that offers some perspective. If one wanted to change the coupling caps to something less clinical and/or more romantic, it would appear that the Jupiter is the better physical fit. It is slightly longer than the Jantzen but also slightly smaller in diameter. They Dueland is shorter but slightly fatter. It would appear that chassis depth is the limiting factor with the Inspire amps. My custom triode amp uses the traditional wood base and metal top plate for construction. It is also sized between the KT88 and PSE, so it has a bit more room for larger coupling capacitors. If need be, I can build a deeper base to accomodate larger caps, but I don't think it would be necessary. |
#2588
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Funny, when I asked Dennis what he thought about replacing caps in his amp he was not too enthusiastic and mentioned his stock Russian caps were good enough and reliable. That was last year. All in all, I believe he had not bother with caps for fine-tunning (also to keep costs in line, I suppose), which is surprising given his normally perfectionist attitude in his designs.
I wish I knew how to solder ... FloridaBoy, you definitely need to come down and visit, and bring your soldering iron and some hot caps along Last edited by Musica Amantem; 09-28-2016 at 10:18 AM. |
#2589
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#2590
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https://www.amazon.com/X-Tronic-3020...5114638&sr=1-3 With that and some instructions, I think I'd be set to practice and learn what is required for me to do some Cap-rolling, eventually. For what I read from others' experiences, this alternative is as impacting as tube-rolling (or even more) to the amp/preamp sound. Thanks! |
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