Large room, minimal budget

[kdubious]

Hello. I'm building out a 2-channel listening space in my detached garage. Dimensions are essentially 23' x 23' x 8' with a slightly sloping floor.

I'm planning to use the garage doors as the front wall.

I built a bunch of panels before using OC 704 panels wrapped in 1x4's held 4" off the walls (at reflection points). In a space this large, I'm thinking I might need full soffit treatments.

Can someone point me to a good resource on where to start? I'll likely need to go the DIY route to manage the budget as I could easily see proper treatments from manufacturers running me into the $20k range.

 

[ddude003]

GIK has plenty of statical information and testing data of their various acoustic treatment devices... The Master Handbook of Acoustics by F. Alton Everest and Ken C. Pohlmann has nice coverage of various acoustic treatment devices... You may be able to find a copy of a previous edition as a pdf on the internet...

Also, http://arqen.com/bass-traps-101/placement-guide/ covers some things that may help you...

You might consider some form of Room Correction DSP after you get close with your physical absorption and diffusion...

PS - A square room is not a great place to start from...

 

[Sonnie Parker]

GIK will also help you, and I don't think you'll be anywhere near even half of $20k. I could see spending a few thousand, but the main idea will be to eliminate the echo in the room. Carpet, chairs, corner bass traps, maybe a few panels overhead since the ceiling is fairly low.

If I remember correctly, the Quad speakers are fairly direct, so there shouldn't be too many side reflections from the walls. They are similar to my MartinLogans and RTJ horns—very direct. Your main issue may be from 150Hz and below, the area that is harder to tame with acoustic panels, especially below 100Hz.