- Thread Starter
- #21
I have no idea how to go about modelling the room in simulation software.
The 50hz cancellation corresponds to the1/4 wavelength of the coffee table and the 80hz cancellation corresponds to the 1/4 wavelength to the ceiling according to this:
So I'm assuming a nearfield sub and one at height would help to mitigate both nulls - which is why I suggested a Micro SB3000 on the shelf behind me.
So my plan so far is:
When my second sub is back from warranty I'll play around with the position and see if the height idea works. I'll see if I can improve the frequency response by better placement of one of the subs. I have an overbuilt heavy duty shelf that could take the weight of the SB1000 Pro - still makes me a little paranoid having a 30lb lump hanging over my head though.
If that works, then I'll look at trying to improve output and extension. The SB1000 pros would then be roughly in the middle of the length way walls, I could the high pass them so they put out negligible volumes below 30hz. Then I could just about fit two PB2000/Monoprice 12 sized subs into the room - one hidden under a desk on the far left hand side of the room next to the left hand window - and one behind the sofa. I could tune these to deal with 30hz and below. The icing on the cake is that these should cancel out the 1/4 wavelength cancellations from the 6.4 meter lengthways wall to wall distance. I'm unsure how hard it would be to combine sealed and ported subs - so would definitely look at a miniDSP and MSO to do this.
Does this sound sensible or crazy? Should I just go and get an audio specialist to simulate the room for me?
I don't need a splitter unless I go to four subs abdo.
The 50hz cancellation corresponds to the1/4 wavelength of the coffee table and the 80hz cancellation corresponds to the 1/4 wavelength to the ceiling according to this:
The Wall Behind The Loudspeaker
www.mh-audio.nl
So I'm assuming a nearfield sub and one at height would help to mitigate both nulls - which is why I suggested a Micro SB3000 on the shelf behind me.
So my plan so far is:
When my second sub is back from warranty I'll play around with the position and see if the height idea works. I'll see if I can improve the frequency response by better placement of one of the subs. I have an overbuilt heavy duty shelf that could take the weight of the SB1000 Pro - still makes me a little paranoid having a 30lb lump hanging over my head though.
If that works, then I'll look at trying to improve output and extension. The SB1000 pros would then be roughly in the middle of the length way walls, I could the high pass them so they put out negligible volumes below 30hz. Then I could just about fit two PB2000/Monoprice 12 sized subs into the room - one hidden under a desk on the far left hand side of the room next to the left hand window - and one behind the sofa. I could tune these to deal with 30hz and below. The icing on the cake is that these should cancel out the 1/4 wavelength cancellations from the 6.4 meter lengthways wall to wall distance. I'm unsure how hard it would be to combine sealed and ported subs - so would definitely look at a miniDSP and MSO to do this.
Does this sound sensible or crazy? Should I just go and get an audio specialist to simulate the room for me?
I don't need a splitter unless I go to four subs abdo.
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