Dynamat mod

Inthefade
Inthefade Posts: 180
edited August 2013 in Vintage Speakers
I apologize in advance but I've used the search function and can't find the threads on dynamat.

I found plenty on suggesting the mod but none with pics of completed ( must be cause I'm a noob). Can someone point me in the right direction?

Also I thought I ran across a thread about sealing the inside of the cabinets. Something about caulk or liquid nails and another about someone coating the whole inside with some kind of sealant?

Oh I should bookmark more often!

Thanks for any help
Post edited by Inthefade on
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  • Inthefade
    Inthefade Posts: 180
    edited August 2013
    It figures as soon as I posted I found the thread I was looking for with dynamat.

    Can anyone chime in on sealing the cabinets?
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  • heartystatue
    heartystatue Posts: 329
    edited August 2013
    I just did my sda 2.3's with it. Its made by Loctite and is called Power Grab exterior construction adhesive. It kinda goes on white but dries clear. Home Depot looking at the reciept it was 4.57 per tube. I bought 2 only needed 1. Used my finger mostly as the gun is a little large in the tight spots. In mho this is a no brainer took about an hour for both. Have fun!
    HT: LSI15, LSIC, LSIFX, Emo XPA-3:biggrin: Onkyo TXNR809, Sony BDP-S500, PannyDMP-BDT320, MIT S1 SC. Mit 73842dlp
    2ch: SDA-SRS 2.3 Fully modded. BAT VK500 w/batpak, BAT VK5I, Essence HDACC.
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  • drumminman
    drumminman Posts: 3,396
    edited August 2013
    +1 Power Grab is what I used too. It has no VOC's, so it doesn't outgas stuff that could harm your speakers or Xover components as it dries.
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills/jantzen inductors, Gimpod's boards, Lg Solen SDA inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR BP's, upgraded IC Cable, Black Hole Damping Sheet strips, interior of cabinets sealed with Loctite Power Grab, AI-1 interface with 1000VA A-L transformer
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  • leftwinger57
    leftwinger57 Posts: 2,917
    edited August 2013
    I just did mine also a few days ago.Thread title from Worm to Monarch butterfly w/ pix of pulled drivers and passives w/ Dynamat Extreme completed and you might notice I marked each speaker w/ painters tape and marked polarity just in case I covered the red dot for+.Also my gaskets were beat so someone suggested the product Armacell of which I bought but the wrong style. You want the flat roll stuff so you use the speakers as template and whittle it down from there w/ an exacto knife or a good razor knife.I also did some minor floor deadening w/ some matting I found in the house and siliconed to the bottoms ,weighed them down till dry then replaced all.
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
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  • leftwinger57
    leftwinger57 Posts: 2,917
    edited August 2013
    Drumminman, I just read your sig and i do grasp of most of what's on there except the AI-1 interface x-former.I was going to start another thread but you probably had enough of me this week so I will toss it out here. What I need is a complete glossary of Polk Product speech.Like TLwhat's that stand for and all the mods and models w/ #s and decimal points. Someone w/ time on there hands should be able to do this ,otherwise I find it hard to have a decent conversation if I don't know what heck people are talking about.
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
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  • workmeistr
    workmeistr Posts: 14
    edited August 2013
    Maybe add fidelity? I'm still in the process of re-doing my Monitor 10As

    http://www.polkaudio.com/forums/showthread.php?151199-Newb-s-first-Post-Monitor-10s
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  • F1nut
    F1nut Posts: 50,557
    edited August 2013
    I also did some minor floor deadening w/ some matting I found in the house and siliconed to the bottoms ,weighed them down till dry then replaced all.

    Are you saying you added some sort of material to the bottom of the cabinets?
    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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  • Moose68Bash
    Moose68Bash Posts: 3,843
    edited August 2013
    leftwinger57 wrote: »
    What I need is a complete glossary of Polk Product speech.Like TLwhat's that stand for and all the mods and models w/ #s and decimal points.

    Go the the VR3 Mods web site and download the SDA manual DarqueKnight put together/authored. It is a comprehensive guide that will likely answer all your questions.

    The SDA Handbook. By Ray Smith (Revision 3)
    Family Room, Innuos Statement streamer (Roon Core) with Morrow Audio USB cable to McIntosh MC 2700 pre with DC2 Digital Audio Module; AQ Sky XLRs to CAT 600.2 dualmono amp, Morrow Elite Speaker Cables to NOLA Baby Grand Reference Gold 3 speakers. Power source for all components: Silver Circle Audio Pure Power One with dedicated 20 amp circuit to main panel.

    Exercise Room, Innuos Streamer via Cat 6 cable connection to PS Audio PerfectWave MkII DAC w/Bridge II, AQ King Cobra RCAs to Perreaux PMF3150 amp (fully restored and upgraded by Jeffrey Jackson, Precision Audio Labs), Supra Rondo 4x2.5 Speaker Cables to SDA 1Cs (Vr3 Mods Xovers and other mods.), Dreadnaught with Supra Rondo 4x2.5 interconnect cables by Vr3 Mods. Power for each component from dedicated 20 amp circuit to main panel, except Innuos Statement powered from Silver Circle Audio Pure Power One.

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  • drumminman
    drumminman Posts: 3,396
    edited August 2013
    leftwinger57 wrote: »
    Drumminman, I just read your sig and i do grasp of most of what's on there except the AI-1 interface x-former.

    The AI-1 Interface aka the Dreadnought is a mod pioneered by Darqueknight for use with non common ground amps e.g. dual monos. It also provides a nice improvement in sound quality with common ground amps.

    His initial build is documented here:

    http://www.polkaudio.com/forums/showthread.php?74472-The-AI-1-Dreadnought-Project-Pt.1

    Then he upgraded that with a new improved version which you can read about here:

    http://www.polkaudio.com/forums/showthread.php?129829-The-AI-1-Dreadnought-Project-Pt.2-Upgrade-to-1000VA-Transformer

    I've built both to use with my common ground power amp, and they're worthwhile additions, no question.

    As for terminology that gets thrown around here do a search or ask questions - that's what I do. It's kinda like learning a foreign language - maybe we could get Rosetta Stone to do a Vintage Polk series :lol:
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills/jantzen inductors, Gimpod's boards, Lg Solen SDA inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR BP's, upgraded IC Cable, Black Hole Damping Sheet strips, interior of cabinets sealed with Loctite Power Grab, AI-1 interface with 1000VA A-L transformer
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  • Moose68Bash
    Moose68Bash Posts: 3,843
    edited August 2013
    drumminman wrote: »
    I've built both to use with my common ground power amp, and they're worthwhile additions, no question.

    I want to second drumminman's endorsement of the Dreadnought with both non-common-ground and common-ground amps. I use one of mine with a pair of monoblocks (not common ground) and a two-channel amp (common ground). The sound is better in the latter with the Dreadnought in place of the standard SDA interconnect cable, and, of course, the Dreadnought is necessary in the system with the monoblocks.
    Family Room, Innuos Statement streamer (Roon Core) with Morrow Audio USB cable to McIntosh MC 2700 pre with DC2 Digital Audio Module; AQ Sky XLRs to CAT 600.2 dualmono amp, Morrow Elite Speaker Cables to NOLA Baby Grand Reference Gold 3 speakers. Power source for all components: Silver Circle Audio Pure Power One with dedicated 20 amp circuit to main panel.

    Exercise Room, Innuos Streamer via Cat 6 cable connection to PS Audio PerfectWave MkII DAC w/Bridge II, AQ King Cobra RCAs to Perreaux PMF3150 amp (fully restored and upgraded by Jeffrey Jackson, Precision Audio Labs), Supra Rondo 4x2.5 Speaker Cables to SDA 1Cs (Vr3 Mods Xovers and other mods.), Dreadnaught with Supra Rondo 4x2.5 interconnect cables by Vr3 Mods. Power for each component from dedicated 20 amp circuit to main panel, except Innuos Statement powered from Silver Circle Audio Pure Power One.

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