The High Frequency Transducers are very small aluminum cylindrical objects with an inverted cone at their tops. The HFT measures a mere 8 mm in diameter and 8 mm in length. Using a little Blu Tack at the end of the HFT allows it to be attached to a wall, cables, etc. These devices are passive and require no active power supply. The HFT are sold in packages of 5 for $299 or $75 individually. Synergistic Research makes a bold statement that the HFT improves all aspects of system performance.

Peter Hansen, Vice President of Marketing at Synergistic Research, came to my home to demonstrate the HFTs. He began by placing 2 HFTs on the rear wall in each corner, and 1 in the middle of the rear listening wall. I was really startled by what I heard after he placed these tiny objects on my wall.

The soundstage became larger not only in width and depth, but also in height. The bass seemed to be a little better controlled with enhanced clarity to the sound of vocalists and instruments. Now this effect was obtained with only 5 HFTs. Peter next placed a total of 5 HFTs on each of my Wilson Sasha speakers. 5 More were placed on each side of my Wilson Watch Dog II subwoofer. The sonic results that I previously described were now magnified with the addition of an improvement in the noise floor. An HFT was then added to each side wall, the lower portions of the front and back walls, and an additional HFT in the middle of the back wall. Midrange clarity, high end definition, soundstage, bass definition, and perceived noise floor all improved.

Peter then suggested that we try the HFTs on my digital cables. We placed one on each of my Synergistic Research Active SE Thunderbolt cables and an Apple Thunderbolt cable. I’ll be damned if I didn’t hear an additional improvement in the sound of my system. The sonic effect of the HFTs in no way exaggerates the soundstage or brightens the sound. As you listen to these devices, everything just sounds clearer and more natural. But we are just getting started; enter the Frequency Equalizer.

How to place HFT’s & FEQ in your listening room