Infinite Baffle

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Comments

  • EndersShadowEndersShadow Posts: 14,813
    VR3 wrote: »
    Ive been checking used sites off and on and finally nabbed a pair of 18" IB13 FI subwoofer drivers for $295 a pair (local pick up-how lucky??)

    ... now to find an XTI2000 amplifier... badass sub for like $550?? cant beat it!

    I think your MONSTER sub would be better, and look like furniture to boot... but thats neither here nor there :smile:
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
  • VR3VR3 Posts: 21,818
    yeah but one takes up 0% floor space and the other takes up like 1,000% floor space lol
    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • FestYboyFestYboy Posts: 726
    txcoastal1 wrote: »
    Here are the pics of Matt's install
    8w5vba4fjjzf.jpg
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    23yqbfuqag1w.jpg
    x0ymbbtknf4g.jpg

    Holy cow!!! That looks awesome! How's the ceiling deal with the piston motion of the air slug in the box?
  • txcoastal1txcoastal1 Posts: 8,339
    He hasn't had any issues so far. His parents who live next door thought an earthquake was happening.
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures, Simaudio 780D DAC
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Modwright LS100, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers
  • FestYboyFestYboy Posts: 726
    VR3 wrote: »
    I think that is YOUR thumb @lightman1

    axws3nkl7okz.jpg
    ltxte971y5so.jpg
    adqomi88nkzd.jpg

    Is it me, or does the box have 3 different size drivers? What kind of configuration is that?
  • EndersShadowEndersShadow Posts: 14,813
    FestYboy wrote: »
    Is it me, or does the box have 3 different size drivers? What kind of configuration is that?

    That was a box built with a design similar to a VMPS Larger sub using higher excursion TC Sounds LMSR drivers.

    The Larger used a active 15 & 18" driver with a 18" passive on the floor that acts like a port.

    Here is the sub it was eventually going to look like...

    sublarg.jpg
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
  • FestYboyFestYboy Posts: 726
    Interesting. According to convention, the passive should have at least 1.5x the pistonic volume capacity of the active driver. But in that box, there are 2 active drivers, one being the same size of the passive, which would suggest that the passive could potentially be pushed past it's x-max. I would have thought that only the 15 would have been active...
  • txcoastal1txcoastal1 Posts: 8,339
    FestYboy wrote: »
    VR3 wrote: »
    I think that is YOUR thumb @lightman1


    Is it me, or does the box have 3 different size drivers? What kind of configuration is that?

    Another pics of Russ' sucking thumb... :s :s :s
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures, Simaudio 780D DAC
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Modwright LS100, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers
  • EndersShadowEndersShadow Posts: 14,813
    FestYboy wrote: »
    Interesting. According to convention, the passive should have at least 1.5x the pistonic volume capacity of the active driver. But in that box, there are 2 active drivers, one being the same size of the passive, which would suggest that the passive could potentially be pushed past it's x-max. I would have thought that only the 15 would have been active...

    Yup... but only Trey, Tom and Russ know how it sounded as they all heard it before it was sold off for parts...

    From my understanding it was bucking Russ off it and thrashing around the floor like a bucking bull with only 1k of wattage from a Pro amp lol....
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
  • VR3VR3 Posts: 21,818
    The passive was an 18", actives were a 12 and 15 and that sub was just stupid nuts
    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • FestYboyFestYboy Posts: 726
    Makes me want to recreate that box!!! I like a good ruckus :D
  • VR3VR3 Posts: 21,818
    XTI2000 should be next week some time... so far have about $600 in this configuration... not bad at all considering the performance people talk about.

    Will be very hard to not cut some holes in the floor very soon!
    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • ConradiclesConradicles Posts: 5,438
    Very nice. Where did you decide to mount the subs? Floor, ceiling or wall?
  • VR3VR3 Posts: 21,818
    So I did a "bass walk" and the location I plan to put the hole is the left front corner of the room in the floor. I think this will provide the best bass response.
    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • mrbironmrbiron Posts: 4,404
    VR3 wrote: »
    So I did a "bass walk" and the location I plan to put the hole is the left front corner of the room in the floor. I think this will provide the best bass response.

    Waaaaahhhhhhh.....in the floor?! :a
    Remember, when cutting, ask yourself, "what would Wile E. Coyote do?"
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  • treitz3treitz3 Posts: 12,206
    VR3 wrote: »
    So I did a "bass walk" and the location I plan to put the hole is the left front corner of the room in the floor. I think this will provide the best bass response.

    Is the listening position still almost directly in front of the front door, about 4-5' out from the door?

    Tom
    In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

    The best way to enjoy digital music reproduction is to never listen to good analogue reproduction.
  • VR3VR3 Posts: 21,818
    For Music, yes. For movies and such, will be left corner, left of door
    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • VR3VR3 Posts: 21,818
    If I find another pair of fi drivers used, i could see adding another pair in the future
    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • EndersShadowEndersShadow Posts: 14,813
    VR3 wrote: »
    If I find another pair of fi drivers used, i could see adding another pair in the future

    All the bass!!!!! I want ALL THE BASS!!!!!
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
  • Dennis GardnerDennis Gardner Posts: 4,727
    VR3 wrote: »
    If I find another pair of fi drivers used, i could see adding another pair in the future

    2 IB drivers will only equal 1 single box driver. I think that you will be underwhelmed unless you have heard one before. The bass is cleaner, smoother, and deeper but will lack impact and the heft/mass that a huge box sub delivers. You will reach Xmax with very little power applied and thus headroom will suffer. I would make the manifold to accept another pair easily or plan for a second one in the other corner.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
  • VR3VR3 Posts: 21,818
    Honestly the Mezzo Utopia has it covered down to about 30hz... I really don't even need a subwoofer for (most) music.

    What I am really hoping for is the low end extension and a little bit of reinforcement above 30hz. My room is also not tooooo huge, 22'x16'x8'
    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • VR3VR3 Posts: 21,818
    Bring the bass!yu3cpxabkuqr.jpgnswpn22wx71x.jpg

    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • treitz3treitz3 Posts: 12,206
    3" excursion -vs- direct servo...

    Game. Set. Match, behaucth.

    The end result will be what it is. Infinite baffle versus Direct servo.

    Who will win?

    Let your ears decide....

    Tom
    In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

    The best way to enjoy digital music reproduction is to never listen to good analogue reproduction.
  • Dennis GardnerDennis Gardner Posts: 4,727
    Nice looking pooches, is the brindle a Plott?
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
  • VR3VR3 Posts: 21,818
    thank you sir! All mut, both of them. The brindle from what I can tell is a boxer/pit bull mix.
    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • inscrutableinscrutable Posts: 13
    You are going to love an IB. Have heard several. Not sure why, but have seemed to integrate and call less attention to themselves with music yet call plenty of attention to themselves with movies
  • EndersShadowEndersShadow Posts: 14,813
    Sooooooo...........................

    @VR3
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
  • VR3VR3 Posts: 21,818
    Lifes been busy man, I'm like the little engine that could :)
    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
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