Which "tweeks" are more important

I've found the following tweaks from "Waler Audio" to be all their cracked up to be, and then some.

- Cyro Silver contact treatment.
- Vivid CD cleaner/treatment.
- Talisman demagnetizer.
- small devices that connect to your speaker terminals. (can't remember what they're called), but they're amazing!

I recently added a device from Environmental Potentials to my electrical panel that had a substantial impact on the sound of my system. Mostly the improvement is in lowering the noise floor and allowing more detail to emerge in a warmer sonic landscape. I'm no electrical engineer so I cannot begin to explain how the thing works but I do know that it provides protection from lightning and other line surges and also filters out hash introduced by any of the circuits feeding/leaving the panel. I do have a dedicated line (20amp) that runs from my new 200amp service about 5 feet to a series of three Porter Ports behind my entertainment center. I also had copper buses installed in the panel. All these updates were incorporated at my direction by the electrician who replaced the service to my house. (BTW, the transformer sits on the pole in front of my house--a bit of luck there). And of course, everything I told the electrician to do came from suggestions made right here on the A'gon so thanks everyone. Hope some of these ideas are helpful--basically I agree, get good power to your gear.

It is difficult to tell without knowing what you have. If you live in an old house with noisy electric power, a line conditioner will do a lot of good. If you have TT on a wobbly rack, upgrading the rack will be more important. If there is no obvious problem or weakness in your system, than I will suggest you improve the room before doing other "tweaks".

Dodgealum
Was does the device from Environmental Potentials do??
Do you need a electrician to install this?
I know you used one, but was it for the Environmental Potentials device you had or all the work in general?
Any info would be great.
Thanks