[Manolo]

I have been playing around with a diy ac conditioner with various capacitors as filters. The platform is a Jena Labs Silver AC distribution unit with 3 double Jena duplex outlets. This unit uses the same aluminum box used by Jena in their conditioners, i.e. the Gold and Platinum. these use Auricap capacitors as parallel filters in each outlet and various other tricks. The difference between the Gold and Platinum is the number of capacitors and their implementation for each outlet. You can see this in the Jena page. I believe the Gold is not offered anymore. I have used the gold on my system, on loan in various occasions and it is very effective in providing a very musical presentation.

My DIY efforts have included installation of various caps as filters in the Silver box a la Gold/Platinum with Solen, Auricaps and now FT-3 Russian NOS caps. I have a dozen of these that I use to experiment with in my Supratek preamplifier in power supply bypasses, etc. 

Upon reading the reviews of the Audience conditioners that use their Teflon caps in lie of the Auricaps and the difference this makes, according to the reviewers and users, proceeded to remove the Auricap filters and installed some FT-3 caps as filters. I do not have the total amount of capacitance as with the the Auricaps -these being only 0.22 uf each- but they were paralled to have at least 0.44 uf in the critical outlets. The double outlet used for my digital transport and dac has one cap in each side and another from neutral to ground as per suggestions in the old Magnan site.

The difference between this incarnation of the filter from the others is notable. The usual HIFI accolades could be  presented. The most noticeable difference, though, is in its warmth and smoothness and in the presentation of the stage, being more behind the speakers with more apparent width.

I realize these caps might not be the lat word in boutique Teflon caps but I was curious and they are very cheap. These is an ongoing experiment and I am presenting it here in case anyone is curious to experiment. These caps are rated 1200 VDC. I really do not know if they are rated for AC but they have been in this use for various months now. 

[tonyptony]

Hi Manolo. Did you notice any difference in high frequency extension, or other aspects of the HF reproduction?

[Manolo]

Sorry this post should have been posted under the Power Conditioning circle.

[Manolo]

It is a matter of a more refined and lucid sound. The highs are there but they are not overstated. My system is rather well behaved , no overbearing high frequency extension.
System
CD transports OPPO bdp 93  and Shigaraki -47 Lab- CD transports
Shigaraki -47 lab- DAC
Supratek Chardonnay tube preamplifier with grey glass 6sn7 tubes
First Watt F4 stereo amplifier
Reference3a MM DeCapo i speakers
All interconnects Jena Labs
Speaker cable Jena Labs

[Speedskater]

Are any of these capacitors rated for AC power line use?
That would be "X" and "Y" series capacitors.

Are any of the commercial filters UL tested/approved?

[Occam]

Are those Roosh'n FT-3 capacitors film and foil, or are they metalized film?

Not all metalized caps are capable of passing X2 specifications, but NO film and foil caps can pass X2 specs. No ETL would even bother to test them for that purpose, as they are not self healing, and will let the smoke escape (as they blow up).

The Teflon caps used by Audience in their most expensive conditioners are metalized Teflon film, not Teflon film and foil....

FWIW