[BillB]

Might be the new high price leader  Not sure how I ran into these but they are high precision resistors, .01% dealies.

http://www.riedon.com/us/index.php?page=shop.browse&category_id=7&option=com_virtuemart&Itemid=47

Digi-key had a few of them...they are a minimum of $18 a piece. 

Just curious if anyone has ever seen them used in audio.

[cryoparts]

I've played around with them a bit.  They are really well made, perhaps a good alternative for those who want to eke out every last ounce of performance from an already exceptionally well designed piece of gear.

Lee

[BillB]

Are we talking naked vishay levels of precision or better (worse?).

I cannot imagine ever owning something that would need these but they do seem like a good idea for signal path resistors in tube gear (if you are looking for non-coloration from resistors).

Do they sound sterile? It almost seems anything with a precision >1% is almost too clean and precise.

[cryoparts]

Are we talking naked vishay levels of precision or better (worse?).

I cannot imagine ever owning something that would need these but they do seem like a good idea for signal path resistors in tube gear (if you are looking for non-coloration from resistors).

Do they sound sterile? It almost seems anything with a precision >1% is almost too clean and precise.

Very precise tolerances, incredibly well made.  I haven't directly compared them to the nude Vishay's, so not sure how different, or similar, they are.

I have quite a few Riedon's somewhere at the shop, not sure what values, I'll have to find them and check them out again.

Lee

[andrewbee]

At .01% they would be overkill for even a concertina splitter for which I spec 0.1%. I did not look at the prices but I will take a wild guess that I can buy probably 100 "ordinary" metal film resistors and get lots of matched sets for less $.

[cryoparts]

Just curious if anyone has ever seen them used in audio.

OK, I've tried them in two similar pieces of gear, a customer's 2008 Valab/Teradak NOS DAC and my 2009 Teradak NOS DAC and have been impressed enough to post about them here. 

I used 350ohm .6w in the I/V section, replacing the stock Dale's that were in there.

If anyone is as crazy as I am and is willing to spend $18.50/each plus shipping for these things, I don't think you'll be disappointed.

Peace,

Lee