Havelock Wool acoustic panels vs fiberglass/Rockwool

@billpete 

This is a stand alone structure away from our home, so the wool risks of off gassing if it caught fire are not of much concern.  The concern I have is breathing in fiberglass particles over the years that might be recirculated thru the HVAC system.

  I thought about doubling up the drywall, but have decided to just go with 5/8" on all walls/ceiling surfaces for this first incarnation.  This space is still an unknown as to whether it will sound good, given its steeply sloped attic ceilings.  I just set all of the recessed LED ceiling light power supply boxes today in the main listening room.  I will work on the bathroom and record cleaning area lighting tomorrow morning.  

  I still have 2 more dedicated 10 gauge runs to my source/preamp rack area.  I have two 10 gauge 20 amp dedicated lines wired on the front wall for mono amps. 

  Progressing slower than I hoped, but I enjoy this type of work.  Just wish I had more time to devote to it :)  Hoping to have HVAC ducts set in a week or so and then getting the sheetrock contractor here soon after that.  

@mckinneymike 

I understand. I'm sure you'll end up very happy with it. Just have to get used to the sheep smell. :) Might want some diffusers or some kind of sound treatments up in the A frame area. I'm no expert, that's for sure. Lots of good advice here. I hope it meets all your expectations. I don't think I'll ever get my sound room, just have to adapt my home office space. It's a work in progress, may never end but it's good enough to enjoy music in nearly every day. I also plan to get the dedicated circuits in place before I'm done. Did it in our other house before moving here. No more moves for me. Too old to do it again, Enjoy.

@billpete 

I am 68 so I get the too old to do it again!  I am not as fast as I used to be for sure.  

  Once I get the room done I plan on building a couple of QRD's for the back wall to see what it does for the sound.  I have planned a pair of these 48" wide and 72" tall by 12" deep.  QR Dude software says that these 43 -1" wide wells should give me a primary diffusion frequency of 550Hz and scatter frequency down to 275Hz.  CNC will do all of the slots for tops and bottoms.  Always wanted to see just what impact a pair of these larger/deeper QRD’s have to offer! 

  I am going to pop for some much better electronics if the room is worthy of the expense.  If so I want this to be my final system!  I might even retire at some point if it sounds as I hope, but I still love working!

@mckinneymike 

Very good for you. Also, it is a lucky man to love his work. I "mostly" enjoyed mine but it was not a job for old guys. Forced retirement by 65 if you didn't get the idea before that. :) 18 years back for me but I was only 55 then. Sometimes seems an eternity, sometimes feels like it was last year. Old age, it's a hoot. All the best to you and your project.