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Preamp Output Capacitor: Mundorf Supreme vs. Supreme Silver Oil

Anyone compared the bass response of these two caps?  I bought the Supremes for trial purposes and really loved what they did to my system's imaging (front to back layering) and immediately bought the Silver Gold Oil Supremes.  Unfortunately while they were smoother, more beautiful, and even better at imaging, they had no bass (actually, they lost bass as they broke in).  Anyone know how the Silver Oil's fit into the line?  

I'm using them in a Don Sach's DS2 Preamp ( https://systems.audiogon.com/systems/7983).  

Thanks.
128x128cal3713
ricgoretti
8 posts
 
I'm in the same boat with Don Sachs II and 2 outputs. One for 100 kOhms (tube amplifier) and one for 20 Kohms (Accuphase). In the first one is a Miflex 0.47 uF and in the second one AudioCap Theta 3 uF bypassed by russian teflon 0.02 uF. Studying an upgrade for the second out but capacitors of 3 uF are very large. Maybe a Mundorf will fit. Interested in your topic. From Brazil.
cal3713's avatar
cal3713 OP
1,421 posts
 
@atmasphere Thanks Ralph, I've just been cheating by using the calculator at vh audio (https://www.v-cap.com/coupling-capacitor-calculator.php). Fortunately because the pre is basically an advanced kit, I do have some ideas of what range is normal for use. 

I also just leaned that I can change the resistor on my amplifier (diy first watt f4s and sit3s) to a any value within a decent range. Moved both up to a 200k input impedance to allow for the use of smaller caps.
cal3713's avatar
cal3713 OP
1,421 posts
 
@grannyring and yes, definitely putting some Duelund's in. Unfortunately I didn't know my amp's input impedance was modifiable... I actually have to re-buy the exact same caps I sold you. It's been fun learning about building/modifying equipment. Still mostly playing Legos, but learning is fun.
cal3713's avatar
cal3713 OP
1,421 posts
 
@ricgoretti. If you look at my system pictures, you can see the Mundorfs in there, they're not large. I think they're 2uf, plenty of room. And despite some of the criticisms, I really do enjoy them. Especially if you've got a system that images nicely. If I had too much bass instead of too little, I'd be gushing about the supreme silver/gold/oils. Really beautiful tone and imaging. And not nearly as expensive as the Duelund and v-cap options. 
imhififan's avatar
imhififan
2,180 posts
 
If you read a lot of capacitor discussions, you can see some other people finding that the bass response of the s/g/o decreases over the first 300 hours (e.g. https://forum.audiogon.com/discussions/mundorf-silver-gold-in-oil-supreme-caps-any-good).
@cal3713 ,Thanks for the link, I just wondering what cause the bass response decreased.
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