Question about DIY subs, placement and freq. response

Discussion in 'Archived Threads 2001-2004' started by Javier_Huerta, Jan 25, 2003.

  1. Javier_Huerta

    Javier_Huerta Supporting Actor

    Mar 9, 2002
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    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!
  2. Brian Knauss

    Brian Knauss Stunt Coordinator

    Jan 12, 2003
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    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.

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