Try www.realtraps.com they absorb more than the stack of insulation you are using. plus they are reflective on the outside to not deaden the room while you take out low HZ. Plus The mini-traps and the mondotraps absorb more bass than the ASC tube traps and are a whole lot more.
I have 13 of their traps in my system (4 are HF absorbtion for 1st order refections (side and ceiling).
I have used ASC products before and I considered the RPG products but both would have cost a small fortune and made the room too small after putting up too much damping. I considered DIY but didn't have the time/patience or the equipment to build them.
Another important point is that the Real Traps are Non-flammable with Class A fire rating. The cheap foam acoustic is typically not and sometimes only a light coating of flame retardant.
Acoustics are one of the most overlooked limitations and upgrades for a system of any $$$.
I have 13 of their traps in my system (4 are HF absorbtion for 1st order refections (side and ceiling).
I have used ASC products before and I considered the RPG products but both would have cost a small fortune and made the room too small after putting up too much damping. I considered DIY but didn't have the time/patience or the equipment to build them.
Another important point is that the Real Traps are Non-flammable with Class A fire rating. The cheap foam acoustic is typically not and sometimes only a light coating of flame retardant.
Acoustics are one of the most overlooked limitations and upgrades for a system of any $$$.