[boffellid]

For sale: 5 HFT High Frequency Transducers from Synergistic Research

$120 + shipping
Paypal fee included

From https://www.thecableco.com/Product/HFT-High-Frequency-Transducer:

"HFTs are tiny high frequency transducers that clean up high frequency harmonics in your listening room. You see harmonics are interconnected so when you effect harmonics beyond the limits of human hearing, you also affect lower frequency harmonics we can hear. HFTs literally cancel harmonic noise on any surface they are placed. And as you follow their easy placement guidelines, 5 HFTs at a time, you systematically overcome your rooms tendency to fight with your system and the music by replacing random out of tune resonance with sympathetic resonance that compliments the music. Just 5 HFTs can create a meaningful improvement to the average listening room, while additional HFT 5 pacs improve your listening enjoyment further until you ultimately bring your entire listening room in sync with the music."