Originally Posted by jwc13ac
My question is, am I better of buying or making this device? Do they use special materials?
Also, is it ugly? I wish they spared the graphics on it.
Thanks, and I'll let you know my impressions.
It is pretty simple to make one yourself if you're handy and resourceful. I wouldn't say the the materials used are special, but they are expensive and hard to find in a small quantity.
The hardest part to find is the legs. I did all kinds of searching online for a decent material and came up empty. It's pretty much a high density, closed cellulose foam. They call it "platfoam". It's probably the most important part as is absorbs the sound so it doesn't transfer to the floor. It will also support the weight of the sub. You can find an actual sound deadening material online, but it's just not cost effective.
Everything else is available and reasonable to buy. Most people substitute the legs with some kind of packing foam or styrofoam. I used styrofoam that can be found in a craft store. What I really wanted to use was a ridged foam insulation. It's only about $8.00 for a 8' sheet, but then I really wouldn't know what to do with the other 7' 6" of it.
The base is made out of 1/2" MDF board. MDF can be found at just about any lumber yard/ home improvement store. MDF has sound absorbing qualities and I believe is what most subs are made out of.
The base is covered with a felt like covering that is used on a lot of guitar amps and can be found pretty cheap at parts express. It's really only for aesthetics. The only other thing is the underneath in lined with "studio foam". It can be picked up pretty cheap at sweetwater.com too. I wanted my home-made subdude base to match my sub a little better so I painted the MDF and used a doormat with a rubber backing than cut it to fit the top. I also substituted the studio foam with 1-1/2" foam weather striping.
I had the MDF board on hand, so the total cost for me was probably about $10-15 bucks. The best part is it is the same size/color as my sub so it's a better match and it actually works! Pffft, who would'a known!
I have no doubt an Auralex product would work better than what I made, but for me it is a little over-sized and I didn't have too much more room to spare. If you want something a little more custom looking I say make one yourself. If you play your sub at high levels and need a bit more performance I would get the real deal.
If you want I can take a snap shot of mine and post it. I just have to charge up the battery in my camera. Doing a search for "Auralex" will get you look at the subdude and gramma pads.
Originally Posted by Pibbo
I ordered a Hsu VTF-2 Mk3 which should be arriving today. I noticed it has the exact footprint of the Gramma, which is nice. It will be placed in the corner of a carpeted second story room with wood supports.
Should a Gramma improve it's SQ? The carpet is semi-thick, so the spikes will penetrate pretty far, meaning the woofer will be pretty close to it. Would simply having more ground clearance from the Hsu being on a solid platform help as well?
Yeah, I think it really does help the SQ. Simply because it's not resonating the floor as much. It will tighten up the bass a bit and not sound as boomy. At least that's what I noticed. I don't think the type of carpet has much to do with it. or at least that is the common consensus here.
I think the biggest benefits is it will help SQ, and it will help isolate the sub from the floor. If you have neighbors they may appreciate more than you.