subwoofer placement in room important!

danger boydanger boy Posts: 15,888
edited March 2002 in Technical/Setup
okay. so it's a typical Sunday. I get up... and right away i want to tweak the home theater a little. I really want a new subwoofer, but can't afford it till a couple months down the road. so I think, well, i've never really moved the subwoofer from where I had it for the past three year. why not move it around the room and see what shakes out. lol

Wow! seriously, i had no idea moving the subwoofer from one part of the room to another could make such a big difference in how much bass comes out of it.

For the past three years it's been in a wall room unit.. sitting right under the TV. fine, no problem.. sounded ok. it's a front firing PSW350. not a huge thumping subwoofer, but for my small 12x16 room it works.

Well this morning I finally decided it's time to move the ol subwoofer from the upper left part of the room to the rear left corner of the room. nice, about a 10% improvement in bass output. it's about 3 feet left of my sweet spot. So I'm thinking, what if I move it to the opposite corner.. so I move it to the right rear corner. BANG! that kicked it up about two notches alright. that addded about another 10 -15% more bass output. now the sub will stay where it's at currently. ( slight problem. i now can pinpoint where the sub is located in the room, before I couldn't, but the bass output is so much better now)

It sits really close to the couch.. about two inches from it actually. and I can now FEEL the bass..it shakes the couch in some movies like Phantom Menace. Dang, it's almost like a whole new subwoofer.

Of course I had to watch and listen to some movies again. needless to say, it's been a good lazy, but very enjoyable sunday afternoon.

here's to you.. move your sub around the room (highly recommend a corner) and see if it make a big difference for you too.
peace.. now back to my movie.

later guys:D
PolkFest 2012, who's going>?
Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
Post edited by danger boy on

Comments

  • lax01lax01 Posts: 496
    edited March 2002
    Congrats Danger Boy! I have always been told that subwoofer placement is important and you proved that! I really don't think it matters in my instance because my sub has to be the worst speaker in my collection. It really is (like I have said before it is a Harmon Kardon Subwoofer from a set of computer speakers). It makes a bang and that is all I want for right now, untill I have enough money for the HSU. When that happens, the sub is going back upstairs to where is supposed to be, the computer. By that time the woofer will be so worn out, and the amp inside will be so tired, that it probably be worthless. :D
    J B
  • ntculenuffntculenuff Posts: 1,155
    edited March 2002
    even thought bass is non directional, placement is key..
    when i had one sub i moved it around to several diff locations until i was satisfied, when i added the second same thing had it in about 3 diff spots and connected 3 diff ways until i found peace and maximum bass..
    and now that i have tweeked the volumes and the x-overs all i have to say is hell yeah.. huston we have b :D :D m and punch !!
    Speakers:
    Definitive BP7001sc mains
    Definitive C/L/R 3000 center
    Polk RT800i's rears
    Definitive supercube I Sub
    Audio:
    Onkyo TX-NR3010
    Emotiva XPA five Gen 3
    OPPO BDP-103 CD, SACD, DVD-A
    Video:
    Panasonic TC-P65ZT60
    OPPO BDP-103 Bluray
    Directv x's 2
  • danger boydanger boy Posts: 15,888
    edited March 2002
    I also played with the phase switch.. it has the "O" setting and 180 degree setting. I notice when it's set to 180. the bass output is much deeper. does anyone know why that is?
    also, why does the sub have left and right filtered inputs on it? I use the unfiltered LFE input. and it sounds great.
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
  • goingganzogoingganzo Posts: 2,797
    edited March 2002
    the 0 and 180 is a phase switch it switches the phase of the sub like if you have 2 subs and you face the subs tward each other they will be moveing in sync but if you make one out of phase of the other it will not cancel the other out.
    Gonzo's World
    BenQ 8700+
    115in screen
    PS3,X-Box 360 and Wii
    Sunfire Theater Grand III
    ADCOM GFA-7607
    four avalanch 18 subs 26.12l of displacement
    Crown xti 4000
  • pensacolapensacola Posts: 269
    edited March 2002
    >>when it's set to 180. the bass output is much deeper.

    Depending on where you place your sub, it will either be in-phase (with your other loudspeakers) with the 0º setting, or the 180º. It sounds like in your case, it's the 180º.

    When speakers are out of phase, they will tend to cancel each other out—hence the reduced output.

    You want the sub in-phase with at least your main speakers, and it sounds like you've got it right.

    Give War A Chance
  • rscamerrscamer Posts: 70
    edited March 2002
    I have done the same with my sub rear right corner my friend
    who has about 5times the money in his system is always surprised how good it sounds. I did have the problem of being able to locate the sound of the sub but i got rid of it by turning it
    into the corner so it wasn't square with the wall then turn down the volume of the sub so it melds with your system.:)
  • lax01lax01 Posts: 496
    edited March 2002
    Okay, I just put my small sub in the corner of my room and I started playing Outkast Stankonia for some automatic bass and found a huge increase in bass output. Instead of my dad coming down to the basement in 5 minutes, it took a record 2 minutes for him to yell at me to turn down my music!:D

    Anyone looking for more output, put your sub in a corner to test it out, it really works.
    J B
  • danger boydanger boy Posts: 15,888
    edited March 2002
    Originally posted by lax01
    Instead of my dad coming down to the basement in 5 minutes, it took a record 2 minutes for him to yell at me to turn down my music!:D

    Hee hee hee!:D
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
  • lakeraylakeray Posts: 7
    edited March 2002
    Ok, so I've got a PSW650 and I put it in a corner. Which way should I have it faceing? It's got a speaker on each side and two horn thingys on the back. Also should I just set it on the floor with it's original rubber feet or should I put spikes on it? The carpets a thick pile and an 8lb pad. Thanks...
  • ntculenuffntculenuff Posts: 1,155
    edited March 2002
    spike it, i like spikes
    i would try facing a couple diff ways until it sounds right to you.
    my 2 pennies
    i dont have one a 650 myself so i havent played with one. i am sure that some one who does have one will chime in and give some advice
    Speakers:
    Definitive BP7001sc mains
    Definitive C/L/R 3000 center
    Polk RT800i's rears
    Definitive supercube I Sub
    Audio:
    Onkyo TX-NR3010
    Emotiva XPA five Gen 3
    OPPO BDP-103 CD, SACD, DVD-A
    Video:
    Panasonic TC-P65ZT60
    OPPO BDP-103 Bluray
    Directv x's 2
  • rscamerrscamer Posts: 70
    edited March 2002
    my sub is a velo front fire and i have it pointed into the corner-
    not centered but you will have to try different angles so you dont get as much localizing.:rolleyes:
  • Billm57Billm57 Posts: 689
    edited March 2002
    actually I moved my psw350 out of the corner .. bass output is somewhat reduced but it blends better
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