When we did sound insulation, we used both SoundCheck gyprock on both sides, and Polyester Blue Acoustic Batts inside, and have to say it has been excellent, even full volume not audible through the walls.
homeone.com.au logos, designs, layout, page headers and colour scheme are ® Copyright Homeone Australia & New Zealand 2001-2013 (v3.0)
homeone® is a registered trademark. All rights reserved. ABN 46 625 367 703.