2. speakers
  3. 159004-117859

Lots of bass at walls, lack of bass in center of room/listening position

I guess this is relatively common in listening system. Is there any way to smooth this out so I get more bass energy at my listening position? This happens with our without my 2x 18 inch subs. Room is 12 x 16 x 8 ft, speakers 4.5 ft apart on long axis and I am sitting 4.5 feet away. I tried moving back and forward but the entire middle center of the room except near the walls has decreased bass.
Is this a boundary effect or could it be due to bass cancellation effects?
smodtactical
erik_squires
16,004 posts
 
AHA !!!

If these are the original NS 5000 I strongly suggest you get Troel's crossover upgrades:

Everything I was complaining about in your measurements (except for the choppy HF) is fixed here.


http://www.troelsgravesen.dk/Yamaha-NS1000.htm


Otherwise, DSP is a necessary option.  If you don't want to do the EQ yourself, Anthem makes a pre and integrated that will do it for you and integrate your sub.



Best,

E
golfnutz
231 posts
 
If you're thinking about Acoustic Panels, you should consider making them yourself. The Rockwool Comfortboard 80 from Home Depot is as good as anything out there and it's only $58 for 6 pieces. It's very rigid, so you don't need to treat it at all. Check out the Acoustical Performance here -  https://www.rockwool.com/products/comfortboard-80/?selectedCat=comfortboard%E2%84%A2%2080%20downloads#Specifications&Sizes
For Bass Traps, just double up with 2 pieces for 3".
All you need to do is build a wooded frame, add the Comfortboard 80, and staple some Guildford of Maine FR701 cloth on it (about 5yds), which you can order from Duvaltex in Quebec. I added Cambric dust collection fabric to keep any loose particles intact, which is very cheap to buy (use 3M 77 spray adhesive to glue it on over the Comfortboard 80). Anything you buy won't be better than making your own.
dznutz
145 posts
 
AHA !!!


If these are the original NS 5000 I strongly suggest you get Troel’s crossover upgrades:

Everything I was complaining about in your measurements (except for the choppy HF) is fixed here.


http://www.troelsgravesen.dk/Yamaha-NS1000.htm


Otherwise, DSP is a necessary option. If you don’t want to do the EQ yourself, Anthem makes a pre and integrated that will do it for you and integrate your sub.



Best,

E

He has NS5000... not NS1000... how did you make that mistake?
erik_squires
16,004 posts
 
He has NS5000... not NS1000... how did you make that mistake?

Enthusiastically!

Refunds are in the mail.

Still, the basic FR issues appear shared. 
smodtactical OP
967 posts
 
@golfnutz Ya I think making them myself makes sense, can save a ton of cash. I wonder if I can order the wood pieces cut to precise size via home depot and have them delivered or something with the rockwool. And just order the fabric as you said, awesome plan. So then I just nail everything together and staple?
Just curious I heard some people using this special denim material that is a bit safer? Any thoughts on that?

@erik_squires Appreciate it man but ya I think NS5K is a totally different speaker.
More to discover