Question about DIY subs, placement and freq. response (1 Viewer)

[Javier_Huerta]

I was thinking about something...

I managed to get my hands on a THX certified receiver. Since my room is small (2000 cubic feet), I have decided to go for the whole enchilada now (acoustical treatment, bass traps, polycilinders on the walls, the works).

I know bass is unidirectional, but experience has taught me if the sub is firing on one corner, the sub vibration usually is felt a bit more on that side of your body, so it adds a bit to the localization. I don't want this to happen in my HT.

Since I had considered bass boost from corner loading, I'll be changing my design from 2 to 4 subwoofers.

I was thinking the following alternatives:

1) Place the 4 subs underneath the center channel, firing towards the viewer (4 12" C-V subs with approximately 300 watts of power - some 120 dB's at 30 Hz).

2) Place the 4 subs underneath the seating area.

My design has a -5 dB response at 20 Hz without equalization. I don't think I'll be adding one in the near future.

Do you think I can get away with no corner loading and still get a nice low-end response?

Thanks for your opinions!

 

[Brian Knauss]

In that small of a room, I would think 2 subs up front would be fine. If placed apart enough, you won't find the bass as "directional" and will have more than enough bass.

I was at my friend's house yesterday, and he has about the same sized room as you are describing. When we were watching Gladiator, I was sitting extremely far up front and to the right, and I could only hear the "directionality" of his sub (back left in the room) a couple times.