Synergistic Research HFT's


I acquired a ten-pack of SR's HFT room treatments and installed them according to directions just prior to last night's listening session. Easy to install using the blue-tack type of material that was included in the package. 

http://highend-electronics.com/products/sr-hft-high-frequency-transformer

The listening room already sported two pairs of Shataki  Holograms ... one pair in the front corners of the room and a second pair in the rear corners of the room. In addition to the Holograms, there are tube traps along the rear of the listening position. I thought I had my room problems solved with the existing treatments and I was satisfied with those results.

Enter the SR HFT's ...

I had my friend Robert over last night to help evaluate the changes, if any. I was looking forward to maybe a small improvement at best. I mean, what can one expect from little metal devises that stick to your walls ... little devises so small that one wouldn't even notice them unless they were called attention to?

Long story short ... we were hit over the head with astounding disbelief at the ... I don't want to use the word "improvement," because that would be an understatement. I'll use the word trans-formative instead.  Because, that's exactly what this tweak has done; its transformed my listening environment, and consequently my entire system, into an unbelievable music machine. 

The first CD I played was a private recording of Rachmaninoff's third piano concerto, with the L.A. Philharmonic orchestra during a Rachmaninoff piano competition. The disc features the winner of the contest on piano.  This has always been one of the favorite recordings in my collection. It transports the listener into the venue in a very natural way. This CD was burned right from the master tape with no artificial reverb or compression.   A good test for any changes to the system. 

Uhhh .... what I thought was a great recording transported us into the live event. Astounding to say the least.  How can such a simple tweak as ten little dots spread around the room have such a huge effect?  My theory is ... the sound energy coming from the speakers causes certain resonances at certain frequencies, and those resonances  excite certain areas of the room and smears the sound. The HFT's take those resonances out of the equation. That's my  theory, anyway. 

Here's the noted improvements:

1. A much more solid presentation at higher volume levels. Everything just seems to hang together better. 

2. Bass control: The best bass from my system yet. Very defined. The lower registers of the piano are a delight. 

3. Size of the presentation:  What I thought was a big sound stage before has been expanded in a very focused way.

4. Transparency: I can "see" much further into the presentation now. The audience noises,coughs & sneezes, the orchestra tuning up, the members turning the pages of the music, the conductor walking on the platform ... all there where a lot of it wasn't before. 

5.  Musicality: The correct tones of the instruments, which I've paid particular attention to in the system, were much improved. Strings, timpani's and the presence of the piano were all dead-nutz on. Amazing. 

6. 3-D:  A much more holographic presentation.  Good Lord, how much better can this get? So much more "air" around the performers. It really adds to the suspension of disbelief in a big way.

I could go on and on with our positive impressions last night, but I will echo what Robert said:  "This is your greatest tweak ever!"  "It sounds like you've improved your entire system." 

After playing a number of CD's featuring piano, we switched to the analog rig and played a whole variety of music ... from straight ahead jazz to Hawaiian music.  The expansion of the sound space, and the realism from analog and tubes with the new room treatment? Unbelievable. 

The ten pack of HFT's gets you to "level two" ... one more pack of five would get it to "level three."  Based upon last  nights results, there is another five pack in my near future. 

Are any of you other A'goners using SR HFT's in your room?  If so, please post your results here. I'd like to know if your experiences with these devises are similar to mine. 

Happy listening, guys. 
128x128oregonpapa
Thank you Davidpritchard and Oregonpapa. I agree, those who couldn't hear the difference might either be the system doesn't have the resolving ability or maybe just too old for their ears to do so. The same could be said for those who think cables doesn't make the difference.
folkfreak, 
" As it happens the Atmosphere does not replace the FEQ, you can and should use both. See the discussion here on how to set up (scroll down and ignore the haters)"

Thanks for the link. When I first installed the FEQ in the main rig, I heard  a definite improvement in my HT system which is two rooms away from the main rig so it seems the FEQ reach is quite a distance. Who knows, maybe the Atmosphere mini will affect my HT as well, we'll see but the FEQ is staying put in the HT system as the results are just too impressive.

I'll report out on the results once I get the Atmosphere mini hooked up in the main rig.
Inspired by this thread I spent an hour or so relocating my Atmosphere and 2 FEQs this morning. In my wide but not deep room I ended up with best results (most openeness and air) with
a) The Atmosphere on the ground center front, it had been raised on a Grand Prix Audio Monaco amplifier stand which actually did not help - maybe that the issue was it blocked direct sight to my ART resonator but in any case floor works best
b) Both FEQs mid way along the side walls, while this meant not having the FEQs connected into my dedicated power lines the location mattered more than the power
c) Both FEQs placed on the floor isolated by Les Davis’ thin constrained layer damping pads (these are very useful accessories)

The differences were pretty subtle but at no cost other than my time well worth getting it tuned in
Oregonpapa

Fascinating stuff!

Did you have an atmosphere or FEQ in the room when you got these results?
nyame ...

Nope, no atmosphere or FEQ in the system. Just the SR HFT's and the room treatments I alluded to earlier.  For what they are, just ten little devises that you stick around the room, they are NOT subtle at all. A major advancement forward in my system for sure. Like my friend Robert said ... the best tweak I've tried yet. The improvement in the bass response is amazing ... and of course, everything else up the line is improved along with it.