Shakti Hallograph Sound Field Optimizer

The Hallographs can make a noticeable and positive difference, depending on your room. Three other members of our local audio group tried these in their rooms and did not hear any difference, then they came to our listening room where we did hear an improvement. My comments on what we heard here are posted here:

http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1220580344&read&keyw&zzshakti+hallographs
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