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I have big monoblocks (Krell 350mc). I am wondering whether supporting them with cones does have any effect. Does any of you have experience of such a "tweak"?
Follow Ups:
HI ST! and all! I've played around alittle with vib control for my CJ MS200 amp.I have a sprung wooden floor,covered by carpeting.It sits in a corner of the room to the front,near my left speaker. My 70lb amp sits on two cynderblocks,sitting side to side. My wife made a cover from black velvety material thay covers them well (for the WAF- wife acceptance factor) and trimmed the sides with velcro so that it goes on and off easily.After tring cones in several different configurations,I tried going the other way as mentioned in some of the oter follow-ups.I went soft and complient.I'm using tennis balls (4) positioned just to the inside of the mounted feet,now off of the blocks.It is quite stable,but to help,use a thick ring,like the inside of a roll of masking tape or such on the bottom of the amp and around the bottom on top of the blocks.You may have to mount the one on top by taping it thoroughly or gluing it.If you don't want to see the balls directly in view,use a tube of sorts that is larger than the balls and the rings. Just make sure that it is slightly shorter that the height of the squished balls so that the amp now isn't supported by the tubes.For my system,the combination of weight on the floor and absorbing quality of the balls is a great combination.Although lately I've been thinking of playing around with innertubes.....HIMMM! I hope that this helps.Happy listening!
As big and heavy as most amps are you wouldn't think that they would be sensitive to what is under them and you would be wrong.....I prefer aluminum cones over brass so get some and play with this as it seems that all pieces respond differently....
Most vibrations come from your speakers that will set your floor, furniture and HiFi equipment into motion. The sound radiating from a vibrating wood floor, vibrating windows etc will color the sound significantly.IMO the most important think to look at is to isolate your speakers from the floor using a soft support, especially if there is a wood floor. Spikes and cones will not isolate speakers, rather the reverse, and therefore increase the vibrations coming into the floor.
For other equipment you could use cones or isolation feet, but the impact on sound in my mind (if any) will be small (except for turntables and perhaps tube ampflifers). I don't really hear any difference when my amp is put on spikes or on soft feet. Speakers on the other hand, is a totally different story. But that's just my experience...
Thomas
I hope you were the one who posted a few months ago (lost link in crash) on subject of some Scandanavian sourced soft and inexpensive footers for amps and speakers.I used to use spikes and while experimenting with a softer material so that I could move my equipment while adjusting position of amps/speakers I found they sounded better with a soft material than with very expensive spikes.
If anyone else reading remembers these soft (not sorbothane) footers which came in different sizes, colors coded to weight etc. please do us a favor and re-post link, TIA
is probablyhttp://www.sonicdesign.se/
The link may be very busy from some locations.
It could be a problem to buy these feet since they appear not to ship everywhere, but you could send them a mail and ask. They would also require your speaker weight and the weight at each corner of the speaker to be able to choose the optimal feet.
You could also work to hunt down some foam material and make DIY feet. Problem is that you need to test different sizes and stiffness to get the desired result. If the feet get too soft or too stiff, the sound may become "muddy" instead. A innertube may also work, since you could change the stiffnes with the air pressure.
And yes, it was probably me posting before.
Thomas
If so, how are they? I sent an e-mail pleading that they find a way to ship to the U.S. Any news? I'm waiting for the reply to my e-mail.
try this.... 2 - 80lbs. bags of sand under ur speakers. Level them wid a board and hammer. And my wife made pillow cases for the sand bags. My speakers look like they r resting on pillows, and they match the deco!
Vibration devices are very important in getting the best sound out of your equipment. There are quite a few ways to go about treatment, use the asylum search function to check the tweakers asylum for posts about diyumas, vibration isolation, innertubes, and mass loading, and you should come up with quite a lot of information to work with, though some nonsense as well. I personally really like the effect of DIYumas combined with mass loading, but that's just me. Sometimes cones are better, sometimes sorbothane, sometimes combinations. There are some people who like to use EVA foam, in conjunction with rigid layers to create amplifier vibration platforms. Try some cheap cones, and see if you hear a difference. Whether positive or negative, if you do, you can try any number of things to help fine tune your systems performance. There are dozens of ideas within the search topics I gave you, just be patient, as there are a lot of posts to sort through, and you should come up with a lot of fun little projects, and be able to enhance your system significantly at the same time. I don't own a piece of equipment that isn't on some sort of homemade vibration device.
I have had good results from EVA foam, but also with sand bags, cones, Vibrapods, perspex, etc. Its all there in the archives.
The main problem is that you want to be isolated from outside vibration, but you want to provide a path for internal vibration to drain out (ie coupling).
Since these are diametric opposites you have to play around with different combinations to see what suits your equipment in your environment.
It doesn't have to cost a fortune. But it can!
Very ugly indeed if your listening room doubles as a living room (or as my wife thinks, the living room first, listening room second!) The thing about this coupling and decoupling as these well-reasoned posts indicate, there are no firm rules but lots of trial and error. Frustrating in my experience since what sounds good one day sounds colored the next. But, recently I've been questioning a major assumption (as, apparently, sonicdesigns does too)--i.e. the spiking of speakers. This seems to be a fixed rule--think of a speaker sold WITHOUT spikes.
If you live atop something as solid and mass loaded as a solid rock montain, then spikes are a clear winner for speakers.
With a concrete floor which is in fact a slab set in the ground, quite possibly (although I have heard this sort of thing vibrate from music.... heard????, FELT!!
If you have a wooden floor, it is probably very easy to make it work as a resonator. This is probably a bad thing.
That's as definite as I get (probably).
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