|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
66.249.82.228
A weird thought just crossed my mind. I have an acoustic revive RR-77 Schuman generator powered by a linear ps, which I like and use with my system regularly. The later rr-777 claims to have a higher output than the rr-77, which is said to be a good thing.
Since it should be a relatively simple device, do you guys think it's possible to mod it to increase output (obviously not posing a fire hazard in return)? If so, how ?
Just being tweaky and cheap at the same time! :)
Thanks.
Follow Ups:
what you are doing. Infrasound at that frequency and at a level higher than what the average body can accept is very dangerous. Typically, at frequencies lower than 8 Hz, various internal organs can be excited into resonance.
If they could shake your internal organs they would eclipse Thigpen's Infra-woofer and just think of the size reduction?
A good point if we were talking about sound waves. As already pointed out by beautox, big difference between sound waves and electromagnetic ones.
This device makes electromagnetic radiation, not sound waves. So no, I thought you were talking electromagnetic.
My quick web search talks about infrasound.
No, you/me are on the same page. The OP was the one that seemed confused about what it is the RR 77, 777, 888 do.BTW, those little glass tubes you were kind enough to send had a very discernible effect (for the better) on video HDMI connect. I'm still experimenting with them in different places. Thank you again.
Edits: 10/06/15
Good point.
I agree that records to die for is just an analogy and is not something we really do!
Cheers.
I've been wondering about that, but wouldn't it require a very large transducer to reproduce those frequencies at sound pressure levels likely to cause a physiologic effect? These SR devices don't seem capable of that.
There is a not-subtle difference between electromagnetic radiation and sound waves.
My bad. How do these rather petite devices work to produce such low frequency EM radiation?
Try putting a Mad Scientist Tube on it. I was really impressed as to how much it increased the effect.
Nice.
Attaching an unconventional tweak to another unconventional tweak!
Maybe I should start with that extra QR-8 I have and see how it goes with the RR77.
...and didn't like the results. I put the QR-8 at the spot as shown in that web review (6moons?) I would say that the effect was that the sound was marginally smoother, but more constrained. It's kind of like having the musicians and sounds being Saran wrapped. Removed the QR-8 and things (particularly dynamincs) are back to normal
Better PS makes a big difference.
Once up and running, Jeff quickly let me know that the KR-powered RR-77 was "too much". He found it overpowering, distracting and not so pleasant after a few minutes. I had to agree, mumbling something like, "one toke over the line". In the end, neither of us would choose to use the KR'd RR-77 over the long term. But I can understand that (and why) some people would get off on the combo. Its impact certainly took me by surprise and I've had a bit of experience with various outboard power supplies and - um, other brain/mood-altering... methodologies. Though I haven't tried the KR PSU with some other in-house devices that I already know to benefit from a replacement of the stock wall wart, I hope to hang on to it long enough to do some experiments. The KR PSU is obviously well-built and clearly capable of taking things to another level.
If you don't become the ocean, you'll be seasick every day.
- Leonard Cohen
FWIW, I recently compared an RR-888 to my RR-77 w/ linear PSU in my system, and the 77 with PSU sounded just as effective, if not moreso, as the 888, which I returned. But that's just my experience.Also, it has nothing to do with output per se, but my PSU (a KingRex) likes clean power. I have a Jena Labs PC feeding it, and also have it plugged into my AC regenerator, and that seemed to help maximize the effect of the AR. I know it sounds nuts . . . :)
Edits: 10/02/15
Since I got mine long ago from Japan, which uses a different voltage, I have been using mine with a small replacement linear wall wart from day one and replaced it with a higher rated one last year. Both are not audiophile quality, but they do go through my power conditioners. So, you didn't hear much if a difference with the 888, huh? I've been contemplating getting one, but had difficulty justifying replacing an already sort of insane (by normal people's or even some audiophile's standards) tweak with another " better" version of the same. Haha.
That's why I'm thinking, if I can enhance the current one's mystical powers, it'll be great!
Thanks.
I auditioned the 888 kind of reluctantly, because I honestly didn't want to spend the close-to-$700 unless it was a HUGE difference over what I had, and it certainly wasn't. Now, that said, I didn't try the 888 with my PSU, so that might have swung the scales clearly in the 888's favor. It's something I should have done, but for some strange reason didn't think to. At any rate, I'm pretty happy with the sound I'm getting out of my RR-77. But I'm always open to tweaks that could enhance it even further. Keep us posted!
Quint, and others if you'd like to chime in, I'm curious about how/where you located your R77. Would you mind sharing that?
I have a more or less traditional setup in my room with equipment rack in the middle of the short wall and speakers flanking. I have no way to locate my R77 in the center above the rack at the recommended height, so it's located behind left speaker on top of cd storage cabinet @ 4' off the floor. I've often wondered if I'm getting full benefit of it with that location. My only other workable locations are about three feet behind the listening position and eight feet off the floor, or directly to the left or right of the listening position about 3.5 feet off the floor. BTW, I am powering my R77 with the KR PS. Curious where others have located theirs.
Thanks,
Mike
I put mine on the top edge of my 55" LED TV, which is on top of a TV cabinet (giving total height of about 5 feet), when I listen to music. Because the LED TV is quite thin, I attach a little plastic box (matchbox sized) to the back to the top edge of the TV for the RR-77 to rest on. A piece of Fo.q vibration damping sheet glued to the RR-77 provides the interface between the RR-77 and the top of the TV. I have a thin dab of Blutack on the LED to tame the blinding light.
Edits: 10/04/15
Jim Smith has his 777 dead centre on front wall as here--
mine Pictured same situ on two ASC centre traps ha yes the cursed light
--I just placed a white self adhesive furniture damper to the LED
--has nice slight aura glow surrounding now--bliss-ha!
Works fine for me--I had two devices one behind Listening chair
-frankly no noticeable improvement big relief actually to recoup some $$'s these things aren't cheap fodder
One seems enough to me in my room anyway
888 + KR PSU+ spare SW PCord
I think the device as it stands does open up the sound --
YVMV
Des
Sondek:
I have my RR-77 on the top shelf of my rack (centered between speakers), about 5.5 feet off the ground, and it works well at that height. But I've positioned it in other areas of my room, with no discernible change in effect. I think height is critical, though. If I were you, I'd try it on top of that 8' location behind your listening position. If you do it, let us know what you think. With these "extreme" tweaks, the sharing of information between users is critical!
Quint,
You've inspired me. As soon as I get a system again I will give it a try in the behind listening position spot. At the moment I find myself somewhat embarrassed system-wise. My CD machine is off for repair and my Acoustat servos out for upgrades. There's no joy in my listening room right now. But expecting much joy when the servos return. Soon I hope.
I'll try to remember to let you know what happens.
Mike
Hi Mike, i'm using the latest RR-777 model connected via balanced cable to a KR Mk2 psu. Like you, I couldn't locate my RR-777 dead center between my speakers, so I placed my unit on top of a hot water cupboard above my left speaker which is fortunately 6'4" above the ground. I just added some Wally/Harmonic isolation feet to raise it up a bit more & isolate the device.I have my unit pointing toward the God seat, though I don't think they're directional. My sense is the most important thing is to elevate it to the optimal height. I've seen some guys in your situation build a wood stand with a platform for the RR-77 to sit on to get it up above 6', so that could be an option. Hard wood would be preferable to reduce resonance.
Btw, a couple of small pieces of grey colored electrical tape placed over the LED light works a treat to reduce its brightness, as I found it quite distracting. Here are some pics of my setup..
Vitus SCD025MkII, SIA025, Oppo BPD-103AU, Magico S5's, Taoc ASR racks + SCB-RS50g, Stillpoints Ultra 6's/Mini's/LPI's, Furutech GTX-D(G), Gigawatt PC-3 SE Evo, Jorma Prime pc's + xlr's/Statement sc's/Unity pc, Siltech Classic Anniversary rcas + HDMI
Edits: 10/04/15 10/04/15 10/04/15 10/04/15 10/04/15 10/04/15 10/04/15 10/04/15 10/04/15
Thanks, Bodhi.It seems you/me think alike as far as the blue light. I used a hole-punch for leather to punch out a dot of black electricians tape to cover that damned thing with. For something that is supposed to have a calming effect that light sure is annoying as hell. To get optimum placement I'd have to attach a shelf to the wall over the equipment rack, and spousal acceptance would be an issue for me. She's been incredibly accepting and forgiving of my aural addictions over the years, but this is one point where she draws a line. If I had a good way to disguise cables running up to it I might could get away with a small shelf just large enough to accommodate the R77.
Edits: 10/04/15
With a couple of swabs of grey electrical tape the light was still visible, but dimmed sufficiently not to be a distraction. You still want to know when the unit is on. I was able to hide most of the cabling by using a short xlr umbilical, installing a single wpo high up in my electrical cupboard & cutting a small hole in the top vented cover to route the power cable. I was really happy with how it worked out.You could try building a wood stand in the same color as your existing cabinet and see how it looks. Then again, an RR-77 + KR psu at a less than optimal height/location is better than no RR-77.
Vitus SCD025MkII, SIA025, Oppo BPD-103AU, Magico S5's, Taoc ASR racks + SCB-RS50g, Stillpoints Ultra 6's/Mini's/LPI's, Furutech GTX-D(G), Gigawatt PC-3 SE Evo, Jorma Prime pc's + xlr's/Statement sc's/Unity pc, Siltech Classic Anniversary rcas + HDMI
Edits: 10/04/15 10/04/15
Your AC Generator have the rest of your system powered from as well?
I thought I read the RR's had to to be powered from a different circuit from the main gears.
Des
AR does say to power the RR separately from the rest of the system, but my experience has been a little different.
I tried it both ways--plugged into an outlet separate from the rig, as well as plugged into the regenerator with the rest of my gear--and I couldn't tell any reliable difference between the two setups. Go figure.
I have wound larger antenna for a number of different such units while I have no way to measure I was pleased with the results. I also connected larger antenna in parallel to smaller ones for similar results. Bit of a fuss to make but if you have good dexterity and a tacky base to wind upon it works well.
moray james
Thanks, Moray.
That sounds like fun. Would you mind sharing some pics and instructions if how you did it? Do they still fit in the box, or did you fit them externally?
Thanks.
don't have a camera that works. I simply used 28 gage for one and 30 gage =for two others wound them as the factory winding is. Because I used such fine gage wire the antenna is much larger (has more windings) than the original and yes all the ones that I did all fit inside of the stock cases the smallest one was a pocket size portable unit. Hope that helps. Best regards Moray James.
moray james
Thanks.
So, any insulated wire would work, and I need not be precise about the winding? Theoretically, Would just connecting a roll of thin gauge wires work then? Any issues with loading the circuit with the extra antenna?Thanks.
Edits: 10/03/15
If you want to build a larger antenna that will fit into the same physical volume you will have to uses smaller wire and if you want a much larger antenna you will need to use much smaller wire. You need to look at the antenna inside your unit you have not done so perhaps if you look up some information on the type of flat winding this is. Here is a link you can do some reading up. http://www.diyaudio.com/forums/everything-else/162477-diy-schumann-resonator.html
moray james
Thanks. I looked into that thread before. Lots of good info, but not a lot of illustration and clear instructions. If you can one day find a pic of yours that you can upload, that would be most lovely.
Thanks.
I have not looked at all of the diy thread for a long time and I cannot recall clearly but I think there is a link to a clear drawing of how the antenna works, it is a kind of bifilar winding, the wire is folded in half and wound about a central point starting with the mid point of the wire so to make a large one you will require a very long length of very fine wire that you have to manage as you wind your flat pancake coil. Sorry but I don't have any photos of mine and I don't want to take them apart to take pictures. The first antenna I wound was on a piece of thin stiff cardboard a rectangle to fit into the case and I covered one side with double sided tape so the winding would stay in place when done I coated it with a few shots of spray paint to encapsulate the winding and insure it stayed in place. Good luck and best regards Moray James.
moray james
Noted with thanks.
One last question. So you just soldered that antenna (wires only) in parallel with the existing antenna with no additional parts required?
Thanks.
I wired both antenna in parallel correct and no I did not use any additional parts. Good luck have fun best regards Moray James.
moray james
Wouldn't replacement or supplementation of the built-in antenna cause a change in resonant frequency? Did you look for that? And wouldn't the benefit of a "larger" antenna (more coils) be more fully realized, if one were to upgrade the power capability of the preceding electronics that "drive" the antenna?Posted 10/15: Apparently the antenna plays no role in setting the frequency. So the answer to my first question is "no". The frequency of the emitted EM radiation is determined by the values of the inductance and capacitance that set it, upstream from the antenna, so far as I can tell from reading on the internet.
Edits: 10/15/15
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: