Markertek Bass Traps

[OldiesButGoodies]

Not bad for $30 bucks.  Need to do a sweep to see if things have improved measurably.  But these look better than the pillows I had in the corners before.   


kappa10 by JSifontes, on Flickr

[schwarcw]

Pepe,

Take those back to Guitar Center and buy yourself these:  http://www.gikacoustics.com/gik_tri_trap_bass_traps.html

Do the research, the GIKs cost a little more but are much, much better.  You can get them to match your decor, get a custom size, color, etc.  I've used them and like them very much.  Sure those foam corner traps were cheap.  I had a pair and I don't think they work.  Took them back and ordered the GIKs.  They cost a little more but don't those bad ass expensive amps deserve the best room acoustics that you can provide?

Have you used test tones and an SPL meter to plot the room response?  You can download the test tones for free.  An SPL meter cost about $35.  Enter the SPL values at the given frequencies into a spreadsheet.  Plot the results.  Draw a diagram of the room and send GIK the results.  They will recommend some treatments.  When you install the treatments, repeat the measurement process.  You will be amazed on the change in room response.  But you won't need the graph to tell you what you ears already will know.

Regards,

[OldiesButGoodies]

What i really need is a bigger room for Two-channel.  That would really help. Either have it built or buy a new house with the righ room in it. 

I bough those a Markertek,  not gc.

[Anders]

In my experience the only true fix for low frequency problems in a room is to tear the thin plaster board  down and put up something thicker and stronger.
My bedroom in my mothers house had a smooth clean and tight sounding low end and the walls were the old plaster and lattice type.
At the store where I worked the walls were terrible, even with the Michal Green room tuning controls.

[Anders]

Looks like Michael Green has advanced his methods : http://tuneland.techno-zone.net/t75-the-tunable-room

Those pillows he sold for the corners did help the room but did nothing for low frequencies.

[OldiesButGoodies]

Thanks for the advice all.  I also built some DIY diffusers for the 1st reflections on the sides using wood frames and fiberglass acoustic material upholstered in gray acoustic fabric.  Both made an improvement,  but it could be placebo effect.  I am going by feel instead of measurements and science.  The room I am using is not good acoustically,  not large enough, etc.  So the plan is to get a bigger room and then do treatments to that one using a more scientific method.   

[wkhanna]

Some good info http://www.ethanwiner.com/acoustics.html