[Skank]

What i did was measure the room accoustics.
This with REW, see http://www.roomeqwizard.com/
and a good mic like umik see https://www.minidsp.com/products/acousti...ent/umik-1

You can get complete how-to's on AVS forum
Its not that hard

That why you can see what problems your room have, but basically it always comes to treatment of floor, roof side walls and corners

Another way to do it , is for subwoofer placement, do the subwoofer crawl (look on youtube)
And for the panels you can sit in your sweet spot in your sofa, and then ask for your wife to hold a mirror and start in the corner, and walk towards you along the wall..
The moment when you (sitting in sweet spot) see your speakers in the mirror, well there's your first reflection spot, and ther you should put your accoustic panels !!!

I created them myself, its not hard at all.
Using wood, make a square and put in some accoustic material
A good product for that is akotherm, but any fiber will do
http://www.akoestiekwinkel.nl/akotherm-b...che-platen