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Top resistors

Many threads with opinions on boutique coupling capacitors, but very little consolidated information on the sonics of resistors. Anyone care to share their thoughts on the attributes of their favorite brands & types for specific tube and SS applications? How much of a difference does a good resistor make?

My interest in the topic increased after recently installing the latest Texas Components nude Vishay TX2575 in several SS and tube phono & LS components. This was a proverbial "Ah-ha" moment-- a stray resistor dropped into signal path here or there, surprising with an improvement that equalled or surpassed the impact of a switch to a top coupling cap like V-Cap or Mundorf.
dgarretson
teo_audio
2,197 posts
 
Glass is a dielectric when in solidus forum. When in liquid form, it is a conductor.

Which takes you (eventually) back 'round to this aspect of 'secretive alloys' (and their construction) for the vishay bulk foil resistors. Secretive for good reason. It's one hell of a data set to have in hand in the world of materials design. (to be applied elsewhere)



randy-11
1,913 posts
 
try Emma Ohm & The Resistors
ihmeyers
83 posts
 
I just got some 5.1 ohm resistors to try on my tweeters in a pair of Wilson Duette.  I actually preferred the lower cost Duelunds to the more expensive Duelunds but preferred the Path Audio to both of those. 

I had never used the Path's before.  At least in this application it was much more dynamic than the Duelunds.  Still need to break-in but I am very pleased so far.  I did not connect the ground lead either.

Cheers,
Ian
larryi
4,089 posts
 
My local dealer builds custom speakers.  He is currently working on a pair of crossovers for me.  It is taking some time to get the very specific parts he uses in his top-end crossovers, particularly the  very old and HUGE caps.  With my crossovers, he is having a hard time getting the specific vintage wire-wound resistors that he wants.  As with all vintage parts, one often has to cull through many to find ones that perform according to specifications. 
teo_audio
2,197 posts
 
If liquid metal really is the cats meow then it should work better for low level signals. From what I understand it is a tin/mercury slurry, both of which are not great conductors, or i should say, not the best conductors.
Most importantly, it contains no mercury, it is a tri-eutectic that has no mercury.

And the updated medical research (more than a few studies done as of now) on these eutectic blends, this data says the toxicology is zero... none ever found.

http://www.rgmd.com/msds/msds.pdf

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