Shelf Material


I have tried so many different shelf materials, and some are better than others, but I feel like I am just spraying bullets that always miss the bulls-eye. So far, I cannot live with the brightness of glass, the ringing of marble or granite, the sluggishness of acrylic, the muddiness of mdf etc. Light and rigid seems better than heavy and dense - in that I can live with the downsides more easily. I use heavily constructed welded steel racks - spiked to the floor and upward spikes supporting the shelves - and I reckon this is right. I like the way bladder products get rid of the resonances that plague shelves, but find that the way they slow down the pace of the music is hard to accept. Does anyone have some answers on this?
redkiwi
Regarding the use of MDF for shelf material, experiment with two MDF pieces cut to suitable shelf/support size, try one "plain" and get the other one either hand lacquered or two-part spray lacquered in a piano black finish or similar. Use some type of "footer" above and below the MDF whilst you experiment. You may change your mind about using MDF. If you can try this and find that something is happening that you like with just this single "shelf" then let me know and I will let you have some drawings for a very cost effective support platform (we make our own similar, platforms but once shipping overseas gets involved they do not become cost effective - bit like shipping large loudspeakers all the way around the world, you end up paying to ship "air"). Hope this helps..?? Richard, vantageaudio.com
Redkiwi; I love this kind of gritty obsseviness-- makes me feel right at home. But my therapist thinks.......! What kind of shelves/rack do you actually use in your present system? Also what kind of floor do you have, and anything else relavant to the vibration control problem? A couple of years ago I decided to go with "mass" and made a 200+ lb. stereo stand-- concrete in the corner posts, well braced, MDF shelves,spiked to floor, etc-- works good, but can probably be critisized in some areas. Concrete in the corner posts was not the "absolute best" choice, but decisions had to be made if I was going to have music within a reasonable period of time (BTW, Sound Anchors Speaker Stands uses concrete in their stands, which are used by Vandersteen). Many other materials and design decisions had to be made if I was ever going to finish my project. So, I'm really curious as to what you've actually been using. Cheers. Craig.
I just finished a very informative telecon with a manufacturer that feels that hard maple is one of the best platform materials. I will not speak for him in detail and would just like to note his reccomendation in this thread. He sounded very busy with many calls but hopefully he will have the time to visit this site and elaborate. Suspended platforms for home use also got a thumbs up. I will be putting in a MDF shelf poised on spikes for now as my new amp arrives this Friday and our houseguest ,my stepdaughter, the following week. I am really just throwing this together for her benefit (and to show off a little). Otherwise it could have waited at least another week or so. LOL.
Dekay, Since your mdf shelf on spikes is a temporary setup, would you do a little experiment and report back here your findings? Just use your mdf shelf as planned for a while till you get a pretty firm handle on it's qualities.Then cut the 5"-6 "(larger if your mdf is in excess of 3/4" thick) hole as I recommended in the related CDP isolation thread to remove mass.Thanks. Best, Ken
Caterham: Thanks for reminding me, I knew that there was something that I had forgot. I use 3/4" MDF which should still be tuff enough with a 5" hole. The hole is to be random and not on center, is this correct? I have been told that the shielding that I was going to add with an aluminum sheet will deteriorate the sound (resonance wise) more than the shielding will improve it, so a hole is now not a problem. If I still loose sleep over nastiness from my source's power supply bothering my amps it will be easier to place a shield inside the CD player. I own it and it's out of warranty. We are tidying up with a back hoe at this point and I have located my scroll saw and power drill as well as a bubble level. My finishing saw is still under the surface somewhere. The lumber yard cuts to order even on scraps, so this is not a problem and is the easy way to go. I have to pick up my additional Kimber Kable this week (I decided to stick with the 4VS until I can shorten the runs) and the shop should have a supply of spikes to choose from. I would like to try brass if they have them. I am also going to try the "best" cones from the Mapleshade website ($110.00) under the CD player as well. I had less than good results with another cone manufacturer and have been close minded on the subject, now it's time to get over it and try something else other than the Vibrapods. If I have time I will make notes on the various isolators as well as the mass reducing hole.