To Howard Kneller,
I just finished reading your review ["Synergistic Research High Frequency Transducer (HFT) and Frequency Equalizer (FEQ) Room Treatments and XOT Crossover Transducer"] and I’d say it is spot on. I had similar results using two five packs of HFTs, one FEQ, and one pair of XOTs. For the first couple of days after installing them, I didn’t actually believe what I was hearing: much better detail, a more full and wide soundstage, and precise imaging. To be sure I was hearing things correctly, I took down the HFTs, unplugged the FEQ, and disconnected the XOTs. Sure enough, the sound was less detailed and the soundstage was not as full and enjoyable. So I reinstalled everything and the sound I had returned. I originally purchased these devices only because it was a no-risk proposition with the money-back guarantee. It only took me about 24 hours to realize they would not be going anywhere. I don’t have even the slightest clue how these things work, only that they do.