Dual Subs Rock

hockeyboy
hockeyboy Posts: 1,428
edited January 2008 in Subwoofer Hookup & Bass Management
IMO I will never go back to a single sub. To me, this was probably the best improvement I ever made in my home theater. Dual SVS subs helps make my system awesome. Who else runs dual, and what do you think?
My Main Gear
Mitsu HC5000 (Proj.)
Marantz SR8001 (AVR)
Sunfire TGA7200 (AMP)
Marantz DV7001 (SACD)
Samsung BD-P1500 Blu-Ray
LSi 15's (Front)
LSiC (Center)
LSiFx (Surrounds)
DUAL SVS 20-39 CS Plus (Passive Subs)
Marantz IS201 I-Pod Dock[/SIZE]
Panamax M5300EX
Carada Criterion 106" Brightwhite Screen
Sunfire TGA 5200 & (4) B&W 605's in the party room
Post edited by hockeyboy on
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Comments

  • ShinAce
    ShinAce Posts: 1,194
    edited January 2008
    I used to. Honestly, it was too big. I was running dual 12", each with its own ported box and amp.

    I still have one of the two in my bedroom.

    But yeah, dual subs are definitely sweet.
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  • Sherardp
    Sherardp Posts: 8,038
    edited January 2008
    Agreed, I run dual PB12 Plus/2s off a Velodyne SMS-1. Awesomeness indeed.
    Shoot the jumper.....................BALLIN.............!!!!!

    Home Theater Pics in the Showcase :cool:

    http://www.polkaudio.com/forums/showcase/view.php?userid=73580
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  • Willow
    Willow Posts: 11,017
    edited January 2008
    Did you stack them or opposite corners?
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  • VR3
    VR3 Posts: 28,644
    edited January 2008
    Stereo subs is the way to go... no comparison
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • wingnut4772
    wingnut4772 Posts: 7,519
    edited January 2008
    Yep. Two subs with an Sms 1 makes awesome HT goodness.
    Sharp Elite 70
    Anthem D2V 3D
    Parasound 5250
    Parasound HCA 1000 A
    Parasound HCA 1000
    Oppo BDP 95
    Von Schweikert VR4 Jr R/L Fronts
    Von Schweikert LCR 4 Center
    Totem Mask Surrounds X4
    Hsu ULS-15 Quad Drive Subwoofers
    Sony PS3
    Squeezebox Touch

    Polk Atrium 7s on the patio just to keep my foot in the door.
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  • Willow
    Willow Posts: 11,017
    edited January 2008
    Vr3MxStyler2k3 wrote: »
    Stereo subs is the way to go... no comparison


    In thise case you would use speaker line and not rca ? and set them to large?
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  • VR3
    VR3 Posts: 28,644
    edited January 2008
    Thats one way to do it - I dont recomend it...

    Reason being you are passing a signal through a sub amp to your mains, never a good thing...

    The easiest way to do it is use the main outs on your receiver/preamp...

    Problem is alot of people only have one set...

    So another way would be to get a Paradigm X30 to use, and run your mains and subs through it...

    Just crank your subs crossovers and volume on max and let the Paradigm X30 do the dirty work...

    Stereo subs will totally change any opinions you had on subs for 2 ch...

    Perfect integration at all times, very wide staging, the works...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • zingo
    zingo Posts: 11,258
    edited January 2008
    I am excited to try the stereo subs I just built, the only problem is I don't have the room until I move this spring. I am just going to run them off the preamp to a bass managment unit, then to their own amp. I tried just running them line level because they are internally crossed, but since they are less efficient then my speakers, they got lost and didn't have seperate volume control.
    Jake
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  • engtaz
    engtaz Posts: 7,663
    edited January 2008
    I use 2 subs but in mono configuration.

    engtaz
    engtaz

    I love how music can brighten up a bad day.
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  • jakelm
    jakelm Posts: 4,081
    edited January 2008
    2 subs here, oposite corners. Hard to find a null in the room.
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
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  • XJRGUY
    XJRGUY Posts: 258
    edited January 2008
    I run dual subs as well, stacked vertically in mono config.

    Yes it made a huge difference with our system as well.

    Next upgrade is better power cables for the subs.

    Going to buy a pair of signal cables "Magic cables"
    http://www.laspeedgarage.com
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  • ShinAce
    ShinAce Posts: 1,194
    edited January 2008
    I had mine stacked both vertically and then horizontally. I preferred horizontal, but that was pure luck on the positioning. My amps have line level pass through with a fixed 80 Hz xover. I buffered the output from the source to the 2 sub amps and then passed through one sub amp to the mains amp.

    Bass tends to reinforce itself with the subs very close together, but the wavelengths are a few feet long.

    I gotta agree, that extra 6 dB can make a huge difference.
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  • Willow
    Willow Posts: 11,017
    edited January 2008
    XJRGUY wrote: »
    Going to buy a pair of signal cables "Magic cables"


    Those are nice....I to am placing an order but for digcoax and HDMI cables
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  • Eric W
    Eric W Posts: 556
    edited January 2008
    Yup, 2 subs are better then one. If placed close together they'll reinforce each other. If spaced apart it will generally provide more even coverage throughout the room, with less peaks and nulls from standing waves.
    -Eric
    -Polk Audio
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  • PolkThug
    PolkThug Posts: 7,532
    edited January 2008
    Mine did best stacked. When separated they created more nulls.
    Never Forget
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  • hockeyboy
    hockeyboy Posts: 1,428
    edited January 2008
    :DMine are both in the front corners. Both are passive. You are right they are huge and take up a bit of room, but generally just serve to empress.
    My Main Gear
    Mitsu HC5000 (Proj.)
    Marantz SR8001 (AVR)
    Sunfire TGA7200 (AMP)
    Marantz DV7001 (SACD)
    Samsung BD-P1500 Blu-Ray
    LSi 15's (Front)
    LSiC (Center)
    LSiFx (Surrounds)
    DUAL SVS 20-39 CS Plus     (Passive Subs)
    Marantz IS201 I-Pod Dock[/SIZE]
    Panamax M5300EX
    Carada Criterion 106" Brightwhite Screen
    Sunfire TGA 5200 & (4) B&W 605's in the party room
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  • mojo_13
    mojo_13 Posts: 22
    edited January 2008
    Just wondering how hard is it to tune dual subs? I have one BIC h-100 and was thinking about getting another. Is it just trial and error to find the sweet spots?
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  • Face
    Face Posts: 14,340
    edited January 2008
    mojo_13 wrote: »
    Just wondering how hard is it to tune dual subs? I have one BIC h-100 and was thinking about getting another. Is it just trial and error to find the sweet spots?
    That's one way to do it. Or you can buy a SPL meter from Rat Shack and use room EQ Wizard. Experiment with placement and phase till you get the best results.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
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  • Sherardp
    Sherardp Posts: 8,038
    edited January 2008
    spl meter will def help out with the calibration. I highly recommend the Velodyne SMS-1 if you can find one used to run them as well. That thing does wonders with LFE.
    Shoot the jumper.....................BALLIN.............!!!!!

    Home Theater Pics in the Showcase :cool:

    http://www.polkaudio.com/forums/showcase/view.php?userid=73580
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  • ShinAce
    ShinAce Posts: 1,194
    edited January 2008
    Are you running a dance hall or a home system?

    You only need to have good performance at your listening spot. The SPL meter is overkill, and limited to tests with constant amplitude signals.
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  • VR3
    VR3 Posts: 28,644
    edited January 2008
    I gotta agree...

    For music, gotta put the SPL meter down and let your ears decide...

    I like my rig on the bass heavier side -- so SPL meter dosnt do me much good.
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Face
    Face Posts: 14,340
    edited January 2008
    The SPL meter is a great way to find any peaks or voids and correct them, it's far from overkill.
    Vr3MxStyler2k3 wrote: »
    I gotta agree...

    For music, gotta put the SPL meter down and let your ears decide...

    I like my rig on the bass heavier side -- so SPL meter dosnt do me much good.

    You have enough subs for a bar or small dance club, your opinion doesn't count. :D
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
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  • jazzisnumberone
    jazzisnumberone Posts: 53
    edited January 2008
    I actually run 3 subs (Def Tech Pro sub 80's) across the front and 2 Energy's for LFE. Some say overkill i say it sounds great.
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  • XJRGUY
    XJRGUY Posts: 258
    edited January 2008
    Willow wrote: »
    Those are nice....I to am placing an order but for digcoax and HDMI cables

    I ended up picking up completely different cables.

    Went out on a limb and bought (3) Monster Cable "Powerline 300" premium power cables.

    2 for each of my PSW1000's (replaced the WIMPY stock power cord)
    1 for my new Sony STR-DA9000ES processor (also with wimpy cord, but thankfully detachable)

    Just plugged it all in tonight.

    Noticed tighter, punchier bass from the get go from the PSW's.

    You really had to see the power cables I used previously with these subs. One was the stocker and another one was some cheap **** thing I found.

    My interconnect/power project is finally done (for now)

    Tim
    http://www.laspeedgarage.com
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  • VR3
    VR3 Posts: 28,644
    edited January 2008
    Hmmm, I have a few Power Line 300 --

    Not the stoutest power cables out there, but I got them at dealer cost... so no complaints here...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • XJRGUY
    XJRGUY Posts: 258
    edited January 2008
    Vr3MxStyler2k3 wrote: »
    Hmmm, I have a few Power Line 300 --

    Not the stoutest power cables out there, but I got them at dealer cost... so no complaints here...

    Haha, I got all three at dealer cost too, so I can't complain.

    They are quite a dozen steps up from what these PSW1000's had before.

    T
    http://www.laspeedgarage.com
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