Originally Posted by Coreyinprogress
I went digging through my gmail just to find my old slutz login just to thank YOU! BillO. Good looking out.
Originally Posted by T800
OC703 is not a pro studio-quality board, its just an internet myth.
There is a reason why Primacoustic and Acoustics First are very high priced in comparison to other companies... it has to do with material density. Higher density boards have a balanced absorbtion character that is superior to lower density soft boards. Its something you need to experience.
Look for OC705 or 707 instead. Sounds light years better than 703. 703 is still bouncy sounding even as you go thicker. If you can find 707, mix in that with 705. It will sound incredible - especially if you have a recording room or control room without any or few parallel walls. Also, the company Acoustics First only uses 7lb density boards which are 707. There is a reason that such an extremely high end company uses Owens Corning 707. They are experts using pro boards.
705 Costs about double the price of 703, (707 triple) but performs whey better and has this tighter response and has more character. There has been a severe misconception that OC703 is industry standard... i am not sure but this some how became a yardstick for home studio enthusiasts, somehow the internet forums became rampant with people suggesting it because its cheap and works ok.... but any bigtime studio always ALWAYS has panels made of 6lb-8lb density fibreglass built into the wall or 6-8pcf rockwool panels, or OC705or 707 fibreglass.
Look up Pilchner Schoustal International
- its all OC705 built into the walls - this is real industrial and commercial quality acoustic insulation in addition to the super density eco-friendly products that Tech Nature sells (operates out of the same building). Call them up. 6lb density or more is what they swear by. They even use 7lb density 707 too.
A common response i have been hearing is "but look at the test data on the owens corning website". The answer to that there have been many other tests conducted by many seasoned acousticians and they will all refer you to OC705 and 707 boards... 705 and 707 destroys 703 for pro sound. and 703 just does not have the density to absorb bass as tightly as proper high density boards and they do not sound as good either). 705 and 707 just simply sound higher end. Hire a real acoustical that has experience with conducting testing. Ask him or her what they recommend - and they will say the same thing - 6lb to 8lb density boards only to be considered.
Pilchner and schoustal - only high density 6-8pcf boards. Only 705 or 707. And look at their website of the studios they build - everything you see build into those walls and all the panels, regardless of shape or size are absolutely and totally 705 or 707. There is no question about it. And they do lots of test data. They also sell lower density products but the best and tightest sound is 705 and 707 and if you have the money that is what they will use. Has better sound absorption character - more balanced - smoother in its superior tightness.
To put things in perspective, basically - all acoustical panels for the commercial world have between 6 to 8 pounds per cubic foot density. On the other hand, 703 is a lightweight flimsy board at 3lb per cubic foot. Now you know why some acoustic panel companies have such low prices as compared to Primacoustic which is strictly OC705 (everything is OC705 whether bass traps or panels), or Acoustics First which is 707 only... you get what you pay for. The 703 boards are the much cheaper low density stuff.
The testing is a complicated discussion... but to simplify things, if you can, get 705 or 707. its what all the pro studio builders use. But be warned, 707 is like three times the price of 703. But once you hear 705 or 707s sound character - you will then realize why - the panels sound very smooth and balanced in their character yet tight as hell. The difference is night and day. Use your ears to verify these facts.... so forget about 703. Its not a professional studio product. Its just an internet myth.
the following is from:Knauf Acoustical Board Smooth with ECOSE® Technology
If you notice, the #3 3" knauf panels have a .5ish sound absorption coefficient at freq's 125, higher freq's sac's are all < 1. double this up on the corners and I'm sure this will solve most room issues. the 2" panels for LF are rated at .29. not sure if you double those up will give you .6ish? but for the price and for what most of us are doing and the highly discernible public
, i'm sure that option would be fine too. google insulation distributors for your local area, usually you can take an hour or two drive and get it....that is my plan... I will do some before and after with my room with my saffire 40 and nt1a..I know, not the best but you will be surprised at my drum sound
.Everyone on here is amazing, thank you so much.
go look at the higher density cornings 705 and such...good stuff but LF's are handled by thicker, more porous material for way cheaper.