Jupiter Copper Foil, Paper & Wax Cap Versus Jensen Cap 0.10uF 630Vdc Copper Foil Ceramic

Has anyone tried Jupiter Copper Foils bypassed with a V-cap CuTF? Just curious if a .01uF V-cap would benefit a Jupiter CF with its resolving and leading edge detail or will it detract from the Jupiter's already beautiful organics?

It really doesn't seem to work like that. Each cap seems to have a different 'speed' based on its value and type of construction. As a result, a smaller cap is usually 'faster' (less dielectric absorption, lower series resistance) than a larger one so what happens is you smear the signal when two caps are placed in parallel (this applies to coupling caps, not power supply bypass). You are far better off just giving it your best shot.

It is for this reason that we designed our gear to only use smaller value caps.

Coming to this kind of late, but check out:    http://humblehomemadehifi.com/Cap.html

Did not read all the responses, but I agree with many of the comments regarding Jupiter's copper foil paper and wax caps. Use them to replace all interstage coupling caps in my Marantz 8B, and they worked wonders. Did other things with the amp too for vast improvement in sound.

I also agree that Jupiters might be a bit dubious in a hot environment.  I noticed some blistering on the surface of the caps placed between the 6CG7 (6FQ7) phase inverter tubes and the El34 outputs.  Was running the amp with 6L6GC with higher bias, and it was running hotter than it probably would have with EL34s, so perhaps the blistering would not have happened in a cooler EL34 environment; the amp was designed to run with El34s anyway.

One other thing, if you do go to check out the website noted above, check out the Miflex caps.  These are excellent.  If you have the space, they are large, very, for a given value, but they are excellent and mega constructed like a brick "s" house.  They are also a comparative bargain price wise.  If you check out Jupiters, wow, the price:  I buy them from hificollective in the UK, but anywhere you look, wow, the price!  Hifi collective sells the Miflex too at a much more reasonable price, but I was able to by them at a website either in Poland or the Czech Republic, four 0.33uF 600v for around 50 to 60 bucks including shipping.  Other than Duelund....?, Jupiter and Miflex are the top rated ones.  The Jupiter and Miflex come in 600v units for circuitry applications.  The Duelunds are essentially for speaker crossovers with much lower voltage ratings.

Do yourself a favor if you're interested in the subject of capacitors, check out the website I mentioned.  It is one of the best a most comprehensive comparisons of capacitors I have seen on the web.  I hope he updates it soon; though it is fairly recent, you know things are always changing....ugg.  

Thank you!
I will read up.

Adding to my threads to save for later... good information in here folks.

I've had good results with both the Jupiter cooper foil and Miflex copper. My Preamp called for a 2.0uf for signal cap in each channel I had already changed out all the caps in my speaker except for rear firing tweeter which called for a 1.0uf. So just to experiment I bought 4x 1.0 Jupiter and 2x 1.0 Miflex. I installed both the 2 Jupiter 1.0 to make a 2.0 per channel in Preamp and 1.0 Miflex in tweeter then ran them 24/7 for 3 weeks. Then I started flipping them around. I put a combination of Jupiter and Miflex in each channel in the preamp then back to all Jupiter in Preamp. I prefer the Miflex and Jupiter in the preamp. With Jupiter/ Miflex combo the bass is fuller and tighter to my taste. The Jupiter/ Jupiter combo was very nice also just different. Both combinations made cymbal sound right for the first time and both sounded very natural and refined. The preamp uses 6922 type. I did find with Jupiter/ Jupiter combo it liked the amprex orange globes which is a more analytical tube than the amprex bugle boys to me. Miflex Jupiter combo liked the bugle boy and orange globe.  Both combinations liked the Amprex SQ gold pins. Mullards and Valvo's were fun but depending on recording.could get a little boring. I did put Miflex 0.1uf as bypass cap in main tweeter 8.2 cap but with all these caps installed I have no idea if they made a difference.