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Hi,I think I may have to place place my top loading cdp on the floor (laminate). What are my options (cheap diy stuff) in terms of isolating the darn thing? I will probably be purchasing isolation cones...but do I just place cones on the floor or should I consider a platform of some kind then cones on top of the platform. Laminate flooring is on concrete.
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Build a DIY sandbox for isolation about 4" tall. Basically a wooden chassis with a top board that just sits/floats on the sand inside the box, the lid should be just smaller than than the inner dimension of the box. Fill with fine quality sifted sand. Inexpensive and very effective for digital sources. I even use one for my satellite HDTV receiver since it is a digital source, too.
Andy, you could spend $175 on NeuanceAudio's shelf, or for $9-14 you could opt for Ken Lyon's (of NeuanceAudio) affordable design recipe that would result in a terrific platform for your CD player. To do this, just buy an IKEA Lack side table ($9-14 depending on a variety of finishes) and screw in some spikes where the legs would have otherwise gone (you can use spike cups if you are concerned about your floor). The table's dimension is just shy of 22x22". These tables are wood veneer over fiberboard and particle board, which sandwich a fiber lattice honeycomb core. As such, the design is that of a rigid, low mass, rapid energy dissipation support & isolation platform. This is a cheap but outstanding tweak. Place your favorite cones between your CDP and platform. Here's link to IKEA Lack table:
Can anyone verify or debunk this. It was my understanding that the painted Lacks had hollow legs. These could be plugged. If the table top is made without the foam core, they will not have the same constrained-layer damping properties. TIA
Julien
"There's someone in my head, but it's not me"
I just finished assembling an Ikea Lyte rack using the Oak veneered Lack side tables. The legs of the oak veneered side tables are solid, albeit particle board. Obviously, this made the process simpler and quicker. My experience is corroborated by inmates who have observed that the oak finish has solid legs. One inmate commented that the oak veneered table is the only one with solid legs. I can't confirm this.I exchanged 3 or 4 emails with Ken Lyon (of NeuanceAudio and original designer of the Ikea Lyte Rack) before and after building the rack. Here's what he had to say about the current construction methods of these tables:
"What appears to be the issue regarding all the variations of the IKEA Lack is that the sidetables apparently are now being outsourced to several different companies by geographic regions and each of these subcontractors have a slightly different manner in which they meet IKEA's "criteria". Most of the differences have been in the legs however your description of the "short fill time" (see explanation in paragraph below) would indicate that what you have is probably a newer variant that I've been hearing about with more frequency over the past several years- a top that contains a fibre "lattice" honeycomb rather than an open architecture or foam/chip injection. What I find most interesting is that even with all these diverse constructions, the performance and benefits gained are nearly identical regardless of the exact construction utilised, and imo makes for a convincing argument for the application of rigid, low mass, rapid dissipation support & isolation [rack]."
Above, Ken's reference to "short fill time" was in reply to my observation that the table would only accept short bursts of polyurethane foam inserted into several holes drilled into the bottom of each table top (I endeavored to insert foam under the impression that the tabletop was hollow). The table's cavity would quickly pressurize after about 3 seconds of spraying and, consequently, would resurface out of the same hole instead of filling the outer/corner recesses of the shelf's cavity. My experience seems consistent with Ken's understanding that, at least some variants of these tables, have some type of honeycomb core. I am hopeful that I did achieve constrained layer damping because I think I was able to bridge the top and bottom layers of the shelf with foam. In a separate AA post, Ken commented that it would be best not to uniformally fill the table's cavity with foam, but only parts of it.
Hi guys,Thank you so much for your input. Went to Ikea last night to check out the Lack tables. Really "hollow" sounding upon rapping my knuckles on the table. Salesman said they no longer come with the honeycomb core. He did not look as though he was really sure though. So the search continues. How about a solid piece of wood like a large chopping block or something, on which my top loading cdp will rest. Isolation cones between cdp and wood. Will the wood which chopping block come in, do?
Andy, yes the tables *seem* hollow, but I don't think they all are; and I know for a fact that the oak veneered table has some type of honeycomb core. I don't think the salesman knows. There are many different philosophies on isolation and vibration control. I'd recommend that you do an AA search (key words: lyon, rigid, low mass) to learn about one point of view. All I can say is that I was about to build a TNT Flexy Rack and Mr. Lyon and others saved me some money and time. I am experiencing considerably better PRaT, tighter base and more natural timbre with the Ikea Lyte. There is no real downside...you spend $9-15 bucks, buy some cheap speaker spikes, spend 2 minutes screwing the spike into the shelf and finito. If you're not impressed, you are out 1 hour and $25.
How do these two compare as audio racks? Aside from price differences, how do they perform--i.e. does one provide more isolation/bass/etc. than the other? Thanks.
Thanks Rio for taking the time to explain. Will look into it this weekend. So... the Ikea Lyte is another option? Sorry not real familiar with Ikea products. Actually have yet to buy anything from them except for a lamp.
Sorry for confusion. If you decide to pursue this route, you want to get Lack table(s). *Lyte* is the name coined by the designer of the rack that utilizes Lack end or coffee tables. Since you are building just a platform, this doesn't apply. Perhaps you can coin a new name for the platform? :)
I built a version of Kens Lack Rack using all coffee tables. I have decided to go with a twin stack of sidetables. I am quite happy with the performance of the coffee stand. I'd hate to go through the trouble and expense only to find out that these newer Lacks don't work as well. Thanks for your insightful answer! The question still remains. I'll just have to try 'em. and see. Thanks again!!
Julien
"There's someone in my head, but it's not me"
Yes, the painted colorful ones are hollow, I made the mistake of buying three of the colored ones and two of the wood finished ones, only the wood ones has the foam core.
if so, in the Hillman parts bins...bin #58266
part snap fastener tool + flange w/base #58279N $3.50eathe 'base' of this 'tool' is perfect alum. base for a roller ball..pick up a set of balls from the bins while you are there for ~ 35cents a peice...
btw, most Sears Hardwares, possibly some Ace Hardwares will have these. NOT Sears Dept. Stores
fc
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