Synergistic Research HFT + FEQ


I heard this tweak at RMAF and brought it home on a 30-day free trial. Unfortunately it turned out to be a real system killer. I had 20 of the HFTs and tried them with and without the FEQ, using a ladder to put them up and take them down repeatedly. I couldn't believe how awful it was. Made it hard to enjoy my otherwise excellent ~$45k system.

I had a similar experience with their Quantum fuse. Never did trust anything with "Quantum" in the title. HiFi Tuning Supreme fuses, on the other hand, made my amps sound significantly better.
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I've decided to keep 3 sets. Decided not to use them on speakers, 15' high ceiling and open left hand side of the system.

Even with bare walls, my system sounded excellent. But it's amazing how these little suckers can alter the sound. I experimented optimal locations and in Level 2, installed one extra HFT in the center front wall above the center. So now I have 3 HFT on center front wall. It added height to the image and soundstage.

I've always prefer a lively room and HFT is the icing on the cake.
Ozzy, Glad you had a set of MIG's to put the FEQ on (all three MIGs pointing in the up position). Also the grounding plug should be directly into the wall if possible and not into a power strip, etc.

To me the FEQ unit seemed more "powerful" after three days of being on. No explanation of why it should happen. Will be interesting if you get the same impression.

Have a fun weekend of listening.
Knghifi, I also think 3 sets is enough. Perhaps later I may try additional HFT's elsewhere in my room. But sticking Blu Tack to my speakers had better be a big improvement, which to me it wasn't.
Now I'm wondering about the XOT items that go into your speaker terminals...Anybody try them?
I am always open minded about tweaks but also like to understand the science behind them. After reading the explanation on the SR site I must admit I am still at a lost to understand what the HFT does and how it does it. Can someone please try to explain the technology to me? In the meantime I am going to try the free trial program offered by The Cable Co.
I offer the following, after my first few months with an FEQ:

I would experiment with other isolation devices in addition to
MIGS, to get the most from the FEQ. This makes a huge difference, as does the underlying support material (shelf or stand) you are using. Symposium Rollerblocks work very well for me, on a granite slab.

It is normal for the transformer to feel warm to the touch.
It is best not to enclose it or restrict air circulation.

I like lifting the wires off the floor, and am supporting them on
egg crates. I also clean both ends of both connectors, periodically.

I also have a Schumann Resonator at the other end of the room,
and feel it works very well with the FEQ.

Be careful not to treat the FEQ with any demagnetizing device.
It will take days for it to "settle down" and perform well again!