Capacitor


Dear friends I am interested to upgrade my caps in the tube preamp from Audio theta tin foil 3uf200VDC to Miflex1uf 240VDC copper foil what are your thoughts will reducing the value to 1uf affect the bass and frequency response or should I go with a higher value than 3uf  
128x128jasbirnandra
Vcap Odams are the better choice, vs Jupiter, as I use both in speaker and electronics applications.  Not close.  This is something I can say with 110% confidence. You will like the Jupiter, no doubt, but miss out on what the Odams do better. 
@grannyring , you've really piqued my interest in trying the Odams in my highly modded Klipschorn crossovers. Presently using combo of Jupiter VT and Audyn True Copper Max. So, how will odam improve on these caps? And how are they on tonal balance, accentuate, soften or change any part of frequency spectrum? My total system is voiced for these caps, wouldn't want any frequency spectrum changes.
I'm also amazed by the relatively small size of the odam, and relatively low price. I've only considered Duelund Cast as upgrade up to now.
After all the above views and experience of all the forum members the only zero in on the caps I have narrowed down are two.
I have been looking into more 3D image correct tone of instruments:

1:Jupiter Copper and Paper Wax 
2: VCap Odam

Duelund is out of the game for the size issue, price and non availability.
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Now kindly vote for the above two and I shall pull the Trigger.
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Lastly thanks to all of you who have been so supportive and taken time to provide their views and participated in this discussion. 
Odams are simply more real sounding than Jupiter copper foils. Improved realism. The stage is more open and speakers disappear more than Jupiter. Bass has more impact with the Odams. The Odams are more dynamic. Odams are more at ease and in perfect balance top to bottom at higher volumes.
Odams are a tad warm with great tonality. The Jupiters are better at fine inner details and are a tad more lively on top.

My favorite capacitor is the Duelund CAST tinned copper version.  They are available at HiFi Collective in the U.K.   They ship fast however.  Next is the Odam and then Jupiter copper foils.