What wall outlet to purchase?

I'll second the Krell man on these,
I like the double cryo'd Oyaide outlets, the red ones (there are 3 to choose from). Purchased mine from Audio Excellence AZ. You can purchase these elsewhere but I don't think they will be cryo'd. Alan can guide you as to which one will fit your sonic needs.

I have 3 different outlets in my theater. Ps audio, Acme silver croyed, and wattgate 381.

I am not to happy with the ps audio. The acme for 5 less dollars is a much more balanced in the frequency rage. The wattgates on steroides but its also 3 times the price.

The acme silver plated is good bang for the buck

Happy listening...

Best bang for the buck is undoubtedly here:

http://www.takefiveaudio.com/mall/shopexd.asp?id=761

Porterports.

There's a company named Locus Design Group doing business on Audiogon that has a great selection of products and manufacturers. The prices are very competitive. Check them out.

I have no affiliation with them.

My Porter Port from Albert Porter was very fairly priced, I thought, and provided excellent sonic value over the older, non-cryo isolated ground unit it replaced. I haven't tried anything more expensive, though.

I like my Oyaide SWO-XXX outlets. http://www.audioexcellenceaz.com/oyaideoutlets.htm