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In Reply to: RE: "bundle" of resistors? posted by madisonears on February 03, 2017 at 21:30:06
If it's film resistors you want, try Caddock's MP-820 / MP-930 series of non-inductive power resistors. They're available through Mouser and Michael Percy and cost well under $10 each. They use the same film type resistive element as the smaller MK-132's that to many are superior to the Vishay CMF series. The MK-132's are actually nearer in quality to Vishay S-102's. Whichever way you decide to go, please let us know how it turns out.
Follow Ups:
I have previously made the same recommendation to others here, and I currently use all Caddock thick films, the MP9xx series with heatsinks, at every position in the xovers. I find them to be very transparent, but somewhat lacking in midrange fullness. My STOP is to mix different brand components within a single circuit to avoid exaggeration of their various colorations. Maybe there are just too many Caddocks here, so I'm exploring other options.
Peace,
Tom E
berate is 8 and benign is 9
Cool, I get what you're trying to accomplish and I'll agree with your mix and match method. It's a very good practice that applies to all audio electronics be it source components, amplifiers, speakers etc.
Having said that, I'll go one step further and suggest that you parallel two different types of resistors in your bundle scheme and use, say half Vishay CMF's and half carbon films or carbon comp's. Kiwame, Arcol and Takman come to mind not to mention the old favorites such as NOS Allen Bradley, Stackpole etc.
I think that that should take away some of the dryness and give you perhaps a bit more 'meat on the bones' kind of sound or sweeter if you will, while the metal film resistors should allow the extended highs to come through.
Hmm... the more I think about it the more I like the idea.
Wow, that's really complicating things with another set of variables. Could be interesting but a lot of work to sort out. One thing for sure, I would never consider using carbon comp anywhere in my system. They're outdated technology and too unreliable. In tube circuits, they might be of use. In any modern electronics, they are an impediment (ha!).
Thing is, I know and do like the sound of CMF's, and I think they might work well and sound good as a bundle by themselves, then that bundle mixed with other resistors in the xover.
Peace,
Tom E
berate is 8 and benign is 9
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