Blackhole 5

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  • RandyCroissant
    RandyCroissant Posts: 475
    From what I understand, the fiberfill or batting is used to help break up standing waves essentially making the cabinet appear larger to the drivers. It is important to place the fiberfill behind the MWs and not let it extend down into the PR area. As far as the upper Tweeter area I don't think it matters as much.
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  • ThomasD
    ThomasD Posts: 260
    Thought the Blackhole 5 went behind the MW ?
    Carver M4.0t, M1.0t, M200t, TX2, C1, C2, Marantz 2230, 2010, 4070, 1030, APPJ 2013, Rega Brio, Marantz Imperial 7's, Klipsch Heresy III, Quartets, KG4's, KG1's, 'The Sixes', R-12SW, Polk SDA 2a's, Monitor 7cTL's, SDA CRS's, 4a's, Zu Audio Dirty Weekends, Pro-ject Acryl TT, Cambridge 851N, 351C, Panamax 5300PM
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  • pitdogg2
    pitdogg2 Posts: 25,441
    ThomasD wrote: »
    Thought the Blackhole 5 went behind the MW ?

    You use both the black hole and polyfil. Install the BH5 on the back wall of the cabinet and then put polyfil back in.
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  • dkfreebird
    dkfreebird Posts: 1,186
    The blackhole 5 attaches to the back of the cabinet behind the mids and then the batting goes back into its original space from the top of the cabinet to right above the passive radiator. Nothing below the mids.
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  • RandyCroissant
    RandyCroissant Posts: 475
    Yes it does! place a strip 4" inches wide and long enough to cover the area directly behind the MWs adhere it to the back of the cabinet, then place the fiberfill back in it's original position not to extend down into the PR area. Use 1 strip behind the Stereo driver's and 1 strip behind the SDA driver's
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  • ThomasD
    ThomasD Posts: 260
    Got it. Both affect the MW. @RandyCroissant I've just got the 7's for now, no SDA drivers to contend with yet :/:/
    Carver M4.0t, M1.0t, M200t, TX2, C1, C2, Marantz 2230, 2010, 4070, 1030, APPJ 2013, Rega Brio, Marantz Imperial 7's, Klipsch Heresy III, Quartets, KG4's, KG1's, 'The Sixes', R-12SW, Polk SDA 2a's, Monitor 7cTL's, SDA CRS's, 4a's, Zu Audio Dirty Weekends, Pro-ject Acryl TT, Cambridge 851N, 351C, Panamax 5300PM
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  • F1nut
    F1nut Posts: 50,546
    I used 3" wide strips. Too much kills the sound and the bass.
    Political Correctness'.........defined

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  • ThomasD
    ThomasD Posts: 260
    dkfreebird wrote: »
    The blackhole 5 attaches to the back of the cabinet behind the mids and then the batting goes back into its original space from the top of the cabinet to right above the passive radiator. Nothing below the mids.

    Does it have any effect on the high's? Would be pretty hard to limit the fiber batting to just behind the mids I realize, so it must not matter since the tweets don't really make any internal standing waves ? Is this correct?
    Carver M4.0t, M1.0t, M200t, TX2, C1, C2, Marantz 2230, 2010, 4070, 1030, APPJ 2013, Rega Brio, Marantz Imperial 7's, Klipsch Heresy III, Quartets, KG4's, KG1's, 'The Sixes', R-12SW, Polk SDA 2a's, Monitor 7cTL's, SDA CRS's, 4a's, Zu Audio Dirty Weekends, Pro-ject Acryl TT, Cambridge 851N, 351C, Panamax 5300PM
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  • voltz
    voltz Posts: 5,384
    edited April 2018
    I used 3" strips in my 10's and SDA 2b's.. seems to work great! but that is what @westmassguy & others like Jesse taught us to use.
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  • ThomasD
    ThomasD Posts: 260
    @F1nut & @voltz 3" wide & how long? Just the height of the driver?
    Carver M4.0t, M1.0t, M200t, TX2, C1, C2, Marantz 2230, 2010, 4070, 1030, APPJ 2013, Rega Brio, Marantz Imperial 7's, Klipsch Heresy III, Quartets, KG4's, KG1's, 'The Sixes', R-12SW, Polk SDA 2a's, Monitor 7cTL's, SDA CRS's, 4a's, Zu Audio Dirty Weekends, Pro-ject Acryl TT, Cambridge 851N, 351C, Panamax 5300PM
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  • dkfreebird
    dkfreebird Posts: 1,186
    edited April 2018
    ThomasD wrote: »
    dkfreebird wrote: »
    The blackhole 5 attaches to the back of the cabinet behind the mids and then the batting goes back into its original space from the top of the cabinet to right above the passive radiator. Nothing below the mids.

    Does it have any effect on the high's? Would be pretty hard to limit the fiber batting to just behind the mids I realize, so it must not matter since the tweets don't really make any internal standing waves ? Is this correct?

    Yes,I even ran some blackhole 5 behind my tweeters on my 1.2’s.
    2 Channel
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    Oppo 103
    Pangea PC
    Wireworld Equinox 7 interconnects
    Wireworld Equinox 7 Speaker Cables and Jumpers

    Backups 2.3tl, Crs+ pin/blade with stands.Monitor 5 peerless,Monitor 4 peerless,Polk R200,McCormack Dna 0.5 Deluxe McCormack Dna 1,Dared Sl 2000A,Dayens Ampino Rogue Magnum 66 pre
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  • voltz
    voltz Posts: 5,384
    think I it was like 3x12 I believe ..Like Dennis said it starts at the bottom of the drivers and goes up towards the top of cabinet and the polyfill goes from bottom of drivers up to the top with none down by the PR's.
    2 ch- Polk CRS+ * Vincent SA-31MK Preamp * Vincent Sp-331 Amp * Marantz SA8005 SACD * Project Xperience Classic TT * Sumiko Blue Point #2 MC cartridge

    HT - Polk 703's * NAD T-758 * Adcom 5503 * Oppo 103 * Samsung 60" series 8 LCD
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  • RandyCroissant
    RandyCroissant Posts: 475
    My bad!! 3" wide strips will do the trick. However you will have to get used to the new sound, at first listen they will sound very different from what you are used to. Give them some time, well worth your patience.
    Yamaha RXA1030, Yamaha CD-S2100, Yamaha AS-2200, Bluesound node 2i
    Polk SDA2btl highly modded
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  • ThomasD
    ThomasD Posts: 260
    I'll have a 12" x 18" piece of BH, so got plenty, just want to put the proper amount in the proper location.
    Carver M4.0t, M1.0t, M200t, TX2, C1, C2, Marantz 2230, 2010, 4070, 1030, APPJ 2013, Rega Brio, Marantz Imperial 7's, Klipsch Heresy III, Quartets, KG4's, KG1's, 'The Sixes', R-12SW, Polk SDA 2a's, Monitor 7cTL's, SDA CRS's, 4a's, Zu Audio Dirty Weekends, Pro-ject Acryl TT, Cambridge 851N, 351C, Panamax 5300PM
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  • dkfreebird
    dkfreebird Posts: 1,186
    Just cut two 3”x6” and put them directly behind the mids.
    2 Channel
    Polk 1.2tl's Modded with dreadnought
    Musical Fidelity M6Si
    North Star Intenso Dac
    Auralic Aries Mini Streamer
    Oppo 103
    Pangea PC
    Wireworld Equinox 7 interconnects
    Wireworld Equinox 7 Speaker Cables and Jumpers

    Backups 2.3tl, Crs+ pin/blade with stands.Monitor 5 peerless,Monitor 4 peerless,Polk R200,McCormack Dna 0.5 Deluxe McCormack Dna 1,Dared Sl 2000A,Dayens Ampino Rogue Magnum 66 pre
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  • ThomasD
    ThomasD Posts: 260
    Simple enough
    Carver M4.0t, M1.0t, M200t, TX2, C1, C2, Marantz 2230, 2010, 4070, 1030, APPJ 2013, Rega Brio, Marantz Imperial 7's, Klipsch Heresy III, Quartets, KG4's, KG1's, 'The Sixes', R-12SW, Polk SDA 2a's, Monitor 7cTL's, SDA CRS's, 4a's, Zu Audio Dirty Weekends, Pro-ject Acryl TT, Cambridge 851N, 351C, Panamax 5300PM
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  • txcoastal1
    txcoastal1 Posts: 13,283
    ThomasD wrote: »
    Simple enough

    Then quit making it complicated :D:D:D

    Enjoy :)
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  • ThomasD
    ThomasD Posts: 260
    Ok Ok. I get it. Subject closed...........
    For now. ;);)
    Carver M4.0t, M1.0t, M200t, TX2, C1, C2, Marantz 2230, 2010, 4070, 1030, APPJ 2013, Rega Brio, Marantz Imperial 7's, Klipsch Heresy III, Quartets, KG4's, KG1's, 'The Sixes', R-12SW, Polk SDA 2a's, Monitor 7cTL's, SDA CRS's, 4a's, Zu Audio Dirty Weekends, Pro-ject Acryl TT, Cambridge 851N, 351C, Panamax 5300PM
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  • F1nut
    F1nut Posts: 50,546
    Just wanted to add, in the Monitor 7's the poly fill is pretty much crammed up at the top with just a bit behind the driver
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • Manticore
    Manticore Posts: 408
    Ditto for me also, batting behind the tweets and mids...1C's
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