Acoustic Revive RR-77 Ultra low pulse generator

I just finished auditioning the SR Plug from Kemp Electronics. The Kemp has the same effect, with the added benefit of adjustable signal strength and a long antenna, which makes it much less conspicuous and easier to mount than the Acoustic Revive.

I have to say, the effect was much more dramatic than I was expecting. I heard another level of detail in my music that I haven't noticed before. This would have ordinarily made this a must have, for $300, except for the physical effect the signal had on me. Within 10 minutes after plugging in the device, my eyes began to become dry and tired, my back and neck became sore and I had a slight headache. (I can also feel the butterflies and more intense effect when I move the antenna)

I wondered if I might adjust to the signal and not notice it if I just left it on all the time, but after 6 days the ill effects clearly weren't going away and I couldn't take it much longer.

These devices will effect every person differently. However, I suspect that many customers who aren't aware of this issue will love the effect when they first try it, only to figure out after 3 months why they feel like crap so much. Fortunately, I demanded a 30 day trial period when I bought this thing.

Fork, I had the SR Plug from Kemp Electronics for a while.
Compared to the Acoustic Revive RR-77 I could not tell if the the SR was doing anything. Perhaps the one I tried was defective.

With the SR Plug from Kemp Electronics by itself or with the Acoustic Revive RR-77 I did not notice any change.
However, when I turned off the Acoustic Revive RR-77 while the SR was plugged in the soundstage dropped.

Who knows though if the Acoustic Revive RR-77 would still give you problems or perhaps it would work better.
Only you could tell.

Hope, I'm not slipping into some mild paranoia. I've recently bought a Kemp SR and can't say it appeared to do much, sonically. However, I've kept it plugged in since I thought it might change over time and, anyway, can't harm. Reading Fork's comment, however, I suddenly realized I have had problems with dry eyes (but then again, not all the time), also my head sometimes felt as if it was caught in a bench vise and occasionaly, a whistling noise entered my ears (but then again, I've had that e.g. on trains or planes). But you know how it is once you start paying attention to that sort of thing, it gets worse. So I've unplugged the SR, try to evaluate what happens over the next weeks.

Apart from that, Ozzy and Fork, have you noticed a difference depending on how you placed the SR's antenna (height, orientation)?

I have been using the SR plugs for several months with excellent results and no ill effects.I leave them plugged in at all times and have only positives to say about them.

Karelfd , I could not tell any difference with moving the antenna or the control knob. Mine never seemed to do anything.