These are mostly finished and done.
Built one big one for the wall behind the chair, and two smaller ones for the ceiling above the speakers.
Rear wall is 2.4m x 1.2m using uthermo panels 600x1200 double-deep (i.e. 50mm) that I got off Audiomuze last year (hey, I been busy). I wanted something that I could put together quickly, and easily decorated to increase MAF (Me Acceptance Factor, I have no wife).
They are pretty over-engineered, could/shoulda probably used alu L-angle for structure -- used 22mm pine (70mm deep mostly), and 100mm deep for the lengths bolted to the wall.
Wanted the panels at least 100mm from the back wall, and left a couple centimeters around each utherm panel to maximise surface area (and create a level of diffusion). I lined the top and bottom of the back with dog blanket because I wanted to trap any fibreglass dust that might come off -- that stuff is EVIL!
The ceiling panels are 75mm thick - three layers (too thick? Vaughn?). They are a bit intrusive. But I can live with it. They are 70mm from ceiling. All uthermo panels are screwed through to the wood struts - used plastic tiling spacers on the ceiling ones to stop the screws just going right through.
The difference they made was not night and day, but distinct - I had my girlfriend listen before and after to get some unprompted views. She had roughly the same opinion.
Bass is not louder (as expected) but more coherent and clean -- can distinguish bass guitar notes, and separate bass from kick in some tracks that I couldn't before.
Vocals/violin, etc are much more 'present' and distinct. Can also listen comfortably at higher volume levels. The room was a nightmare - cement walls, not very high cement ceiling and hard parquet flooring. LOADS of flutter echo, which is not mostly gone.
Now starting to realise stereo separation could be better... wonder if my valve stage input selector/volume is leaking.
:angrywife:
The remaining 8 panels are not sitting behind the couch as kind of a bass trap of sorts.
Cost... not cheap. Fibre panels were R1540 AFAIK, wood was about R900, fabric R300 (mostly for the funky stripy stuff), sundry other materials R200.
Built one big one for the wall behind the chair, and two smaller ones for the ceiling above the speakers.
Rear wall is 2.4m x 1.2m using uthermo panels 600x1200 double-deep (i.e. 50mm) that I got off Audiomuze last year (hey, I been busy). I wanted something that I could put together quickly, and easily decorated to increase MAF (Me Acceptance Factor, I have no wife).
They are pretty over-engineered, could/shoulda probably used alu L-angle for structure -- used 22mm pine (70mm deep mostly), and 100mm deep for the lengths bolted to the wall.
Wanted the panels at least 100mm from the back wall, and left a couple centimeters around each utherm panel to maximise surface area (and create a level of diffusion). I lined the top and bottom of the back with dog blanket because I wanted to trap any fibreglass dust that might come off -- that stuff is EVIL!
The ceiling panels are 75mm thick - three layers (too thick? Vaughn?). They are a bit intrusive. But I can live with it. They are 70mm from ceiling. All uthermo panels are screwed through to the wood struts - used plastic tiling spacers on the ceiling ones to stop the screws just going right through.
The difference they made was not night and day, but distinct - I had my girlfriend listen before and after to get some unprompted views. She had roughly the same opinion.
Bass is not louder (as expected) but more coherent and clean -- can distinguish bass guitar notes, and separate bass from kick in some tracks that I couldn't before.
Vocals/violin, etc are much more 'present' and distinct. Can also listen comfortably at higher volume levels. The room was a nightmare - cement walls, not very high cement ceiling and hard parquet flooring. LOADS of flutter echo, which is not mostly gone.
Now starting to realise stereo separation could be better... wonder if my valve stage input selector/volume is leaking.
:angrywife:
The remaining 8 panels are not sitting behind the couch as kind of a bass trap of sorts.
Cost... not cheap. Fibre panels were R1540 AFAIK, wood was about R900, fabric R300 (mostly for the funky stripy stuff), sundry other materials R200.
