It really depends on the type of foam you're talking about. Not just any foam will work. The combination of mattresses and foam might work to an extent but you're really just going to deaden the room. And that might be the best you can expect. It just depends on the kind of results you're looking for. If you're looking for "budget" results, then a few mattresses would help deaden the room.Does mattresses and foam do the job if you're on a budget?
The low frequency absorption numbers aren't so great on the safe n sound. Its a lot less dense than the "Safe".The 125Hz absorption co-ef is only 0.52, which more or less means it absorbs about half of the sound in that frequency hitting it. The Roxul Safe in 3" is a bit better at 0.63. At 4" its all the way up to 1.03, which basically means it absorbs all the sound in the range.
i know its a bit out of some peoples comfort zone to call up a commercial material supplier, but its not really that big of a deal. The place I called was helpful, and I wasn't the weird person building a home studio that had called him looking for small quantities. EVERY major city has a commercial building supply place or ten.
i know its a bit out of some peoples comfort zone to call up a commercial material supplier, but its not really that big of a deal. The place I called was helpful, and I wasn't the weird person building a home studio that had called him looking for small quantities. EVERY major city has a commercial building supply place or ten.
And for that touch of class, adorn them with these...get four friends to stand in the corners as bass traps and polish their foreheads to bounce higher frequencies.......
If that's the case then 703 isn't much different at 125Hz because it's co-efficient is only .53. .52 from the Safe N Sound seems on par. That's comparing 3" 703 to the 3" Safe N Sound.
The most significant difference that is notable between the two is at 250Hz. 3" 703 yields 1.19 while 3" yields .96. I don't know that that's enough to get up in arms about...no, really. I don't know.