These types of devices have been sold by Walker Audio (HDL.....High Definition Links ....$725....apparently no longer available) and by Stein Music (Speaker Match Plus and Speaker Match Signature.....$690 and $1750).........and now Synergistic Research has something similar....the XOT Carbon......$449. Please search and read the reviews......mostly raves.
The ones I am selling do exactly what the reviews state.of all the above.....that is, to make the sound more musical and more detailed. You hear more separation of instruments, more hall sound, more air, lowering of noise and lowering of edginess and distortion. You hear more micro details....string resonances.....lips smacking.....more of the wood sound. This is not subtle....you have not heard your system till you have filtered the noise coming down your speaker wires. Even at low volumes you enjoy the music more......just more real.
It does not matter whether your system is $1000, $10,000, $100,000 or whatever.....or whatever new thing you have just added to your system.....when you put these $125 things on your speaker you will drop your jaw......you will not want to take them off.
Appears to be a Boucherot cell, a.k.a., Zobel network, which can be used to flatten the impedance curve of a speaker. Ideally, they are designed for the specific speaker drivers and they may already be included in some passive crossovers. If you want to design what is essentially a series resistor and capacitor for your specific speakers, something like this might help. I find it interesting that these are intended to be interchangeably used for low, mid, and high frequency drivers. Here is an interesting review of the Synergistic Research XOT Carbon High-Frequency Transducers discussed in the EVS literature.
Here is what is true......what mitch2 says is 50% correct......in that there are some kinds of Zobel Networks that are used in some speakers after the crossover to flatten the impedance curve of the driver so the xover will see a more linear load. They use large value capacitors so they operate in the audio domain.
However, mitch2 in incorrect about what mine and Stein Music do....and what the now discontinued Enacom, Merlin, and Walker Audio do. We use very small values so the high frequency roll off is way above 100K.....these are rf filters.....they have nothing to do with flattening an impedance curve......they are simply filtering the noise coming down the speaker wire. As to why they work so well, when you cannot hear above 20K? I don't know....I just want more pure sound.....and this is what they give. What is really interesting is that every part and wire and damping, etc......that you do in these filters changes the sound.....even if using the same values. As usual.....EVERYTHING makes a difference.
The $450 Synergistic Research ones appear to suppress rf in a different fashion.....Are they as effective? Can you use them together with mine? Someone will play with both and let us know.
Those that trust their hearing will know whether somthing works for them or not. What others say (including me) is of no importance.....what is real....is what YOU EXPERIENCE.....so far.....people are loving what they hear with my Music Purifiers......if someone does not like what they hear......or they hear nothing.....then they can simply return them for a full refund....including shipping.
I am using Ric’s Music Purifiers on the crossovers for my rebuilt Apogee Duetta Signatures: two pairs on each crossover.
They absolutely make an entirely positive difference (Duettas, Parasound JC1+s, Rossi L2, Silversmith Fideliums, both analog and digital sources).
Here are my specific impressions:
—sound is immediately smoother, volume slightly but noticeably lowered, but dynamics not affected at all
—soundstage opens up quite a bit, width and depth
—what could be occasionally biting in higher frequencies before is not now
—details emerge from the mix that were buried
—instruments sound more musical, more like themselves
Overall, the system sounds more like itself. The improvement is immediately noticeable but becomes more evident over time.
I would rate the degree of improvement as roughly the same as a power cord change.
Given that Ric allows returns AND covers postage, I don’t think one could go wrong in trying these.
I ain't taking them out!
From the link:
"The ones I am selling do exactly what the reviews state.of all the above.....that is, to make the sound more musical and more detailed. You hear more separation of instruments, more hall sound, more air, lowering of noise and lowering of edginess and distortion. You hear more micro details....string resonances.....lips smacking.....more of the wood sound. This is not subtle....you have not heard your system till you have filtered the noise coming down your speaker wires. Even at low volumes you enjoy the music more......just more real."
So, someone just dropped $50K on a pair of speakers to hook up to their $25K amps and associated gear and they just won't hear them unless they have these things or something similar?. yeah.....oookkaay.
For $135 I will flip a coin for magic fuse or this.
What happens if I get BOTH? So "real" my head explodes?
Not implying it doesn't do as claimed, I just couldn't resist. I hear good results just thru room/speaker setup AND audiophool cable.
I am also using the EVS Ric's Music Purifier's.
At first they didn't seem to do anything, but as time went on the music became even more natural sounding, highly worthy of its inclusion. They work at the very high frequencies outside of human hearing (eliminating distortion?) that ride along with the signal. It is best placed at the speaker end.
Yes, your head will explode.....it's fun......try it.
Here is what a person with Magnepan .7s ($1395 a pair......not $50K) said:
" bass is much cleaner and tighter, imaging seems a lot better, the music just seems far more relaxed and enjoyable."
The more tweaked out your system.....the more any one thing makes a difference....If you have 100 veils....then removing 5 is not going to be that audible.....if you have only 5 veils....then everything makes more of an audible difference. I still don't understand why most audiophiles still have their speaker cables (and all cables) on the floor.....talking about veils!......cable risers are cheap....I use cardboard.
Mine arrived yesterday. Both the music purifier and ground enhancers. I added them to the system on the speakers and didn’t really hear any diff.
Tonight I get home from work and Chuck a disc on and WHAT AM I HEARING? The problem is I hear a very noticeable difference and but I’m failing to quantify them in a way I can put into words.
I am running both the purifiers and enhancers on the upper set of binding posts where the speaker cable connects. My jumpers then run down the lower set. I think I need a set for the lowers now.
I would advise anyone to give these a shot. I’m seriously impressed.