Spike feet or Auralex subdude for sub?

Subdude!

well... imo (and imo only)...

concrete doesn't vibrate (at least not without some significant force), so "decoupling" anything from it doesn't buy you anything...

ymmv... i'm sure others might disagree... and it wouldn't be the first time i was "misinformed"....

I'm using a Gramma for my down-firing sub (Outlaw LFM-1 EX), which is on berber carpet over concrete. It is a major improvement (less boomy, cleaner, punchier), although I think that a significant part of the value may be the extra clearance under the sub.

Also, maybe some of the more knowedgeable folks here would have some thoughts regarding potential benefits of bass waves reflecting off the Gramma surface vs. carpet-covered concrete.

A tangential Q: In an apt. with concrete floors and carpeting, even with a Subdude, don't low frequency sounds pass to the downstairs neighbors more, the lower the freq.?

i have read many times that isolation pads do little to no good on concrete.
they are mainly for subs on wooden floors.
please correct me if i am wrong

http://www.avsforum.com/avs-vb/showt...644330&page=13
I dunno but with all these ppl with Sub dudes how many can actually measure the difference with or without? I would think more than one person? Look at #386 theres a graph

ok. i am intriged.
i have both my towers sitting on carpeted concrete.
yesterday when playing cloverfield i noticed it was rattleing the metal back of my plasma.
i wonder if isolation pad would help, for it shakes my whole house including yard, and drive way.
earthquake anyone?
not trying to be a jerk just dont understand

Yup I often wonder also. It's a cheap way to get better sound. But I don't want to spend the $ if it does nothing or much. PPL Post some graphs. That would tell better imo than "thinking" it sounds better so thats the best $50 I've spent. I'm sure there's alot of ppl who can tell a big diff but.......