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  1. #1

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    Default dual sub set up.

    Here's a question for ya! If I were to go from 1 svs 20-39+ to 2, would I place them at equal distances from the left and right mains or group them both together in the same "sweet spot"? also depending on which placement you think is better how would I set the phases for each?

    P.S. Home Theater is 12X20 and has an independent floor.
    Reciever - Onkyo TX 797 (100X6)
    Mains - RTi8's (Bi-Wire)
    Center - CSi5 (Bi-Wire)
    Surrounds - FXi5's
    Subwoofer - SVS 20-39+
    Moniter - Sony KP-57HW40
    DVD #1 - Sony - DVP-985V (400 Disc)
    DVD #2 - Panasonic - DVD CP72
    CD - Sony - CDP-CX450 (400 Disc)
    Sat - Sony SAT - W60 (DirecTv)
    VHS - Sony - SLV-N88

  2. #2

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    Default

    Place side by side. Same phase.

    Regards,
    PolkThug
    Last edited by PolkThug; 04-04-2004 at 05:06 AM.

  3. #3

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    You cant stack an SVS cylinder.

    I think the simplest solution is to calibrate for 1 sub, including phase and find the sweet spot. Then place the other beside the first and use the same settings except recalibrate the gains.

    EDIT: To adjust the phase, plot a frequency response graph using test tones. Choose various phase settings and stick with the flattest curve. I know for myself and Dr.Spec 180 degrees worked out best.

    I have used up to 3 subs in different locations, and found that co-locationg was always best but YMMV.
    Last edited by gatemplin; 04-01-2004 at 07:19 PM.

  4. #4

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    cost effectiveness... in mind.. sell the 20-39 and get a pb2 + or isd.. if you put them in the same corner they will be close to the size of a pb2
    MY HT RIG:
    Sherwood p-965
    Sherwood sd871 dvd
    Rotel 1075 amp x5
    LSI15 mains
    LsiC center
    LSIfx surround backs
    Lsi7 side surrounds
    SVS pb12/plus2


    2 Channel Rig:

    nad 1020 Pre-amp
    Rotel 1080 stereo amp
    Polk sda 2B
    kenwood grunt Tuner
    realistic lab 450 TT
    Signal cable IC

  5. #5

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    am i right in saying that the 2 subs have to be the same, or is using 2 different subs a possibility. i've seen a few people using 2 different subs on the home theater forum, but i dont see it much here. is it frowned upon?
    Theater - Polk LSi15, LSiC, LSi9 speaks, DIY Sub (142.5L box, SVS plus driver, 500 Watt plate amp)...Outlaw 990 pre/pro, Carver TFM45, 2 X Outlaw M200 . Rotel RB980 . PS3, Monster 3600 power center

    2 Channel -
    Anthem Pre 2l, Jolida JD100 CD player, CAL Sigma DAC, Carver m4.0, Polk LSi9 w external modified Crossovers (thanks Trey!)

  6. #6

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    Ohski I don't know? I suppose I am using the same logic that says: you wouldn't use 2 different mains??? maybe some one can chime in here and settle this for us..Is it o.k. to use 2 different style subs in the same set-up.
    Reciever - Onkyo TX 797 (100X6)
    Mains - RTi8's (Bi-Wire)
    Center - CSi5 (Bi-Wire)
    Surrounds - FXi5's
    Subwoofer - SVS 20-39+
    Moniter - Sony KP-57HW40
    DVD #1 - Sony - DVP-985V (400 Disc)
    DVD #2 - Panasonic - DVD CP72
    CD - Sony - CDP-CX450 (400 Disc)
    Sat - Sony SAT - W60 (DirecTv)
    VHS - Sony - SLV-N88

  7. #7

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    calibrate one sub, test it....walk around your room and find the spot that has the least amount of bass, place ur second sub there.

    i heard it works, never tried it tho.
    SDA 2B
    Carver m0.5t
    AMC pre
    Cobalt Cables

  8. #8

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    might try that, i have a very large room, living room and dining room are combined into one large room. ah, WTF, what can it hurt?
    Theater - Polk LSi15, LSiC, LSi9 speaks, DIY Sub (142.5L box, SVS plus driver, 500 Watt plate amp)...Outlaw 990 pre/pro, Carver TFM45, 2 X Outlaw M200 . Rotel RB980 . PS3, Monster 3600 power center

    2 Channel -
    Anthem Pre 2l, Jolida JD100 CD player, CAL Sigma DAC, Carver m4.0, Polk LSi9 w external modified Crossovers (thanks Trey!)

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