EVS Music Purifier

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.

These are Zobel networks and they work. I use the Stein Speaker Match with good results.