powering 2 shiva IB

Discussion in 'Home Theater Projects' started by ScottDIY, Mar 25, 2004.

  1. ScottDIY

    ScottDIY Agent

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    How much power would be required to run a pair of shiva's in an IB setup. How much power before the reach x-max in an IB setup?
     
  2. KyleGS

    KyleGS Second Unit

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    Using WinISD Pro I'm looking at around 100w per driver @ 20hz to reach xmax. You may want to protect them with a subsonic filter below 20hz or so.

    LspCAD is showing similar results.

    G'luck
     
  3. Ben Ven

    Ben Ven Stunt Coordinator

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    Not alot. I blew up and rebuilt my entire set up. I am now running 2 Shivas in an IB. They bottom out fairly easily listening to music. However, I have not had them do it during movies. I have not measured power nor the in room FR. Suffice it to say, they have reached 110 dB in my 3200 ft^3 basement room. I am using an old Pioneer Pro Logic receiver with 125 W per coil or 500 W total. Mind you this is the smoothest bass (by ear) that I have had. Just when you think you have found sonic utopia..... I have also had these Shivas in sealed, ported and TL arrangements.
     
  4. ScottDIY

    ScottDIY Agent

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    Thanks for the reply, I am running a 75l sealed DPL12 with my nad 3150 (~65 watts/coil) I find that this setup has no problem producing enough spl for me and I might add that it also sound great. But, I think I caught the DIY bug, I want to try my hand at another project. I have the perfect location to experiment with an IB and thought that if I could cut the cost if the nad could produce enough power. My entertainment room is on the main level and I have a ~ 12”x15” heating duct beside my left main. I thought that I could pull duct and use this access for experimenting.
     
  5. Kevin Deacon

    Kevin Deacon Second Unit

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    I use the Parts Express 250 watt plate amp to power two IB Dayton 15" subs in an IB alignment. I reached 110db at 16hz. Flat response from 16hz - 125hz. I didn't try test tones below 16hz, hmmm, there's a project for the weekend.

    Truly incredible.
     
  6. ThomasW

    ThomasW Cinematographer

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    If you don't already have the drivers I suggest getting a pair of 15"s instead of 12"s.
     
  7. ScottDIY

    ScottDIY Agent

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    15", ok I'll watch for a sale. I guess i was thinking 12 because of the location that I want to put the IB. it's 12"x15" with the 15" side hard against the wall. would it cause a problem if the mouth/opening was slightly maller than the sub box.
     
  8. Wayne Ernst

    Wayne Ernst Cinematographer

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    The 12" Shiva runs $125 each (shipped)
    The 15" I.B. subwoofer by Dayton @ Parts Express runs $119.00 plus shipping.

    I'm not sure if Parts Express ever has this particular driver on sale or not.
     
  9. ScottDIY

    ScottDIY Agent

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    $119 sounds good, but I am concerned with shipping cost, exchange and duty. I seam to be limited in what I can find here in Canada. I may have to brake down, but when your looking at 45 -60% increase.[​IMG]
    I have heard of the 15" I.B. Dayton, how do they work compaired to the Tempest. I can get one for $202.00 can. I thought that I would watch them for a sale. the 119 Dayton would be 160 can + shipping + duty.
     

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