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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Schipo is right. I borrowed a pair and gave them back after using one then both, moving them around. It took about ten minutes to realize that (especially at their price) they are a ripoff. Room treatments work better and are alot less in cost.

I use them and find they do a wonderful job but yes they are pricey. I've told dozen of customers to go to Home Depot or Lowes and buy one of those rose trestle (3 or 4 fingers made of cheap wood) and make a wooden base and place one in each corner of the room. All these do is break up sound waves to smooth out your room response, yes the Shakti device looks like a piece of art but for $12 you can have the same benefit.

(Dealer disclaimer)

.... the sound of one pair of Hallograph is salubrious, exquisite, stunning, glorious and dazzling and the sound of another pair is superlative, smashing, magnificent, superb and impeccable...but it can be improved dramatically, when a Vibraplane is below them...so airy...this nailed "nothing" focussed in the soundstage must be heard to believe.

From what I understood from talking with the maker, speaker type can make a difference too. Boxed monopoles are OK. Dipole types, not so much...