First a little background... I recently won seven 4'x2' bass traps in a raffle. I need to decide how many, if any, I am going to keep. Those I don't keep I'll give to a guy who needs them (and will get me a good price on a 1080p projector in the future). My room is small, 10.5'Wx18'Lx8'H. More on my room here. Anyway, here are some possible locations for the traps, though I'm not sure how I feel about how they look against the striped grey color scheme...
I just stumbled upon REW and I set it up tonight with my RS SPL meter (and cal file). I don't have a subwoofer yet, but my AV123 MFW-15 will be shipping this month. For now it is just the Rockets: RS750 LR, RSC200 center, and RSS300 surrounds (all AV123). Here are some graphs (sorry they are so tall)...
BLUE is with zero traps.
PURPLE is with six traps.
So the frequency response was hardly affected. I was confused about this until I did some digging on these forums. Turns out traps affect the FR little under 60-80hz (explained here). Instead, they reduce the decay which makes the bass tighter. So here are the appropriate graphs...
BLUE is with zero traps.
RED is with three traps.
PURPLE is with six traps.
Like a true scientist, I spent so much time fretting over measurements that I forgot to do some subjective listening. :nerd: This will happen first thing tomorrow (it is past 3am already!).
Now for some questions! Thanks for making it thus far BTW.:cunning:
1) Do you think these traps make a significant difference in SQ?
2) Remember all the graphs above are without a sub. Do you think I would see a larger difference when my sub is installed?
3) How are my trap locations? Does putting bass traps at the first reflection points help with high frequencies?
Somewhat related questions...
4) Do I want to buy a DSP1124P or FBQ2496?
5) I have read the RS SPL meter is ok for EQing a sub. Would I gain much with an ECM8000 mic?
Thanks for your help/input/etc! :bigsmile:
I just stumbled upon REW and I set it up tonight with my RS SPL meter (and cal file). I don't have a subwoofer yet, but my AV123 MFW-15 will be shipping this month. For now it is just the Rockets: RS750 LR, RSC200 center, and RSS300 surrounds (all AV123). Here are some graphs (sorry they are so tall)...
BLUE is with zero traps.
PURPLE is with six traps.
So the frequency response was hardly affected. I was confused about this until I did some digging on these forums. Turns out traps affect the FR little under 60-80hz (explained here). Instead, they reduce the decay which makes the bass tighter. So here are the appropriate graphs...
BLUE is with zero traps.
RED is with three traps.
PURPLE is with six traps.
Like a true scientist, I spent so much time fretting over measurements that I forgot to do some subjective listening. :nerd: This will happen first thing tomorrow (it is past 3am already!).
Now for some questions! Thanks for making it thus far BTW.:cunning:
1) Do you think these traps make a significant difference in SQ?
2) Remember all the graphs above are without a sub. Do you think I would see a larger difference when my sub is installed?
3) How are my trap locations? Does putting bass traps at the first reflection points help with high frequencies?
Somewhat related questions...
4) Do I want to buy a DSP1124P or FBQ2496?
5) I have read the RS SPL meter is ok for EQing a sub. Would I gain much with an ECM8000 mic?
Thanks for your help/input/etc! :bigsmile: