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In Reply to: RE: Anti=-Cables and Detail Magnifiers posted by rbyar on July 01, 2009 at 19:13:07
First, shielding isn't the only approach to RFI. If you go to the Tweaks Asylum and look up zobels, R-C filters, posts by Al Sekela, you'll learn a great deal about how to mitigate RFI.
Second, as Al posted there recently, the Detail Magnifier is really just a single R-C filter (similar to the Walker links), which is nowhere near as effective as a Ti-shielded, grounded, R-C array. You can DIY any version of this if you have some skills.
Third, probably any speaker cable design can benefit from these types of filters in most household environments.
Go to Tweaks and do your homework; you'll be amazed!
This type of R-C filter made a nice improvement to my system. Econotweeks are a solid outfit. The only way to find out is to order a set. They give you a money back guarentee. Put them in and run your speakers for 20 to 50 hours and remove them. if the sound then gets worse buy the filters. If you do not notice a change with them out send them back. I think this is a fun experiment that I have done and believe most would benefit by performing.
Good listening.
David Pritchard
If you don't DIY, then this is a good deal. If you DIY, then this is mediocre, as you can do far better for your system.
FWIW, as I recall, Al Sekela did use the R-Cs on his Maggies - this is for the original poster.
Quality of parts is an issue. The latest R-C I have made with one good cap and resistor like the Walker outdoes the Chris D 3 stage design using its recommended parts, in my system anyway. I also take Al's advice of using a set at the amp and at the speaker and I also biamp and therefore biwire and have four total. I use a shielded design as well on all versions I built. Also I can speak to this well because I'm pretty sure I'm the only one that has built ALL of the versions of this "device" discussed here.
ET
Question "Authority", the mainstream media sucks - Go Independent and hold BOTH parties accountable instead of just the other guys!
I need music to help forget the reality of today
Edits: 07/03/09
My words were not meant to be harsh. Just an observation.
Inadvertently, I gave the impression that I didn't think the EconoTweaks were possibly any good, which was NOT my intention. I can see how it would be misread from the word "mediocre". I was referring to single R-C vs. R-C arrays in my experience. For the record, I have no experience with the EconoTweaks from which to draw a direct comparison otherwise.
I've been personally through the iterations from the simple single R-C (including shielded without TI or ground), through complex arrays, through the TI-shielded, and then the grounded. And to my ears, the whole magilla is a better sounding device than any of the earlier iterations.
I've used the same caps that Al recommended, and they sound great. I know of his own experimentation, which was extensive. That's not to say, as Al says above, that it's impossible to best the ones we have been using, of course. YMMV
So never having heard what you heard with the cap you chose, all I can offer is that someone can DIY this stuff with great results, if they want to, or they can buy your simpler design off the shelf from you and be satisfied as well.
FWIW, I was very satisfied with one simple R-C, then one on each end was better, then better caps and resistors in an array was better still, then Ti-shield was even better, and finally the grounded Ti array the best I've heard in my system to date. Having heard them through similar iterations on Al's system, which is completely different from my own, with the same impressions, what other conclusion would you draw?
My apologies if you were offended, which was not the intent.
We are all better off when any of us continues to explore ways to make any of these tweaks more effective. My hat's off to you for your R&D on these new caps, which I wouldn't mind hearing myself.
Very grateful for your reply and email! Thank you Bart!! And thanks for all the times you've helped me in the tweakers asylum! You and Al are the rpimary reasons i decoded to go forward with EconoTweaks.
ET
Question "Authority", the mainstream media sucks - Go Independent and hold BOTH parties accountable instead of just the other guys!
I need music to help forget the reality of today
There are so many who have helped me at various times, not just by their posts, but by the willingly given private advice as well. This is an odd place, but a good one. A place where people who actually make a living off their inventions and expertise offer it freely to those who otherwise might be buying their stuff too.
And I've seen the progression from experimenter here to manufacturer as well. So I'm glad to help those who make that leap.
Sometimes I find my fingers are too quick or my mouth (figuratively) is too sharp in this medium. I do try to correct that stuff when the opportunity is there. It's not so easy to maintain friendships on controversial discussions/topics with people I've never actually seen! Email is better at facilitating contact than it is at ensuring good communication.
I've made a lot of good friendly contacts over the years here, but more importantly, I've got at least a couple of really good true friends from this interchange. That is more valuable to me than all the gear Stereophile writes up to drool over at astronomical prices.
Tonight I had a visit - first in 20 years - from one of my closest and longest term friends on the planet. When all the wives left the house I cranked up the stereo for him to hear. Of course, he was really appreciative of the sound. It's not so great seeing your close buddies only every 20 years, and I know he's no audiophile either. As close as I can come to having that kind of visit with real audiophiles has been the discussion here and visits to Al's place, which is 2 hours away from me.
So this forum is of more value to me than you might imagine....
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