[amblin]

Hi James and everyone

Someone just gave me an  'AC filter' of some sort , it's a 30A rated corcom filter unit (local voltage is 230V) in a home made box with AC in and outlets and a thermal braker rated 32A , pretty basic but seem rather well constructed and passed the tests done by a qualified electrician. But still, before I plug it in maybe I should ask around first...

My question is, can this be used in between my socket board and wall outlet as some sort of isolation/purifier ? Will there be any negative effects or risks on my gears? (2x 14SST2 + BP26 plus DAC and CDP etc.) . As far as I know such 'filters' is best used at the source of the interferience but I live in a tall apartment building where power distribution is a huge complicated network.....

I never used any type of isolation or purifier in my system because I always thought it's best to keep the path as short as possible.. So this is uncharted land.....

Thanks

EDIT: already searched the forums but there's no clear answer..

[James Tanner]

HI

I am not sure on this particular filter but typically the problem is they are fine for steady state voltage and current delivery but restrict 'INSTANTANEOUS' current flow on transients.  It is one of the issues we found when developing the BIT products.  So I would caution you on the 14B's but may be OK and the source gear.

james

[Speedskater]

A short Jim Brown paper on power line filters:

This is an applications note on a variety of Power Line RF Filters that I've found at a local electronics surplus house, HSC, also known as Halted. Unfortunately, they are not listed in their internet catalog, so you've got to go to the store to buy them. They're also widely available from industrial electronics suppliers like Allied and Newark.

http://www.audiosystemsgroup.com/PowerFilters.pdf

***********************************

Many more Jim Brown papers:

http://www.audiosystemsgroup.com/publish.htm

[amblin]

Thank you James and speedskater for the information much appreciated!

I'll try this unit on my CDP and DAC, and see if I can test drive a BIT 15 / 20  or something similar. Unfortunately my local bryston dealer don't have them on display..