lack of higher volume punch

JPSmario
JPSmario Posts: 142
in Vintage Speakers
I have a pair of SDA 2Bs that have been TL'd by the previous owner. now that I have a more tolerant neighbor (I live in a townhouse), I turn them up higher more often but I'm not getting the thumpage punch I did from the SDA 2As I replaced. some of the screws on the subs do not tighten; they seem to be stripped. Can this be causing lack of a good seal that would explain my issue? any suggested fixes? or should I be looking for other causes? I appreciate any guidance here as I feel I know only enough to be dangerous and don't want to jump to conclusions.

Thanks,

Jim
Dual 1229/Grado Gold/Rotel RCD1070/RC995/RB980BX/Pioneer 7100/Denon DRM710/Monster HTS3600MKII/PolkAudio SDA2B/TL's
· Share on FacebookShare on Twitter

Comments

  • boston1450
    boston1450 Posts: 7,637
    Push in & hold the passive in. The woofers will come out & should stay out at least 3-5 seconds. If they go back to normal to quick you have a leak.... Hurricane nuts OR Larry rings may work
    ..
    · Share on FacebookShare on Twitter
  • boston1450
    boston1450 Posts: 7,637
    edited August 2016
    Keep in mind. It could also be woofer & tweeter gaskets/screws also. If you remove the woofers & tweeters & the gaskets appear ok - keep them. Stock ones tend to last a long time & unless there is a tear or something-they should be fine
    ..
    · Share on FacebookShare on Twitter
  • pitdogg2
    pitdogg2 Posts: 25,441
    sounds like you may have a leak as Boston pointed out try that. These are dependent on a very good seal around the drivers to get good bass.
    · Share on FacebookShare on Twitter
  • boston1450
    boston1450 Posts: 7,637
    Hey i just thought of something. Could the wire to the bass inductor come off ? Im no tech-so just a thought
    ..
    · Share on FacebookShare on Twitter
  • F1nut
    F1nut Posts: 50,549
    Screws don't tighten.....you've got an air leak.
    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

    · Share on FacebookShare on Twitter
  • F1nut
    F1nut Posts: 50,549
    Something is wrong with the disaster known as Vanilla...big surprise!

    This thread has 5 replies, but only 1 view, which of course is not possible. There are other threads with the same issue.
    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

    · Share on FacebookShare on Twitter
  • JPSmario
    JPSmario Posts: 142
    thank you all for your quick responses. and apologies if this question duplicated previous threads; not only has it been a while since I've logged in, I've never had much luck with searches. thanks again!
    Dual 1229/Grado Gold/Rotel RCD1070/RC995/RB980BX/Pioneer 7100/Denon DRM710/Monster HTS3600MKII/PolkAudio SDA2B/TL's
    · Share on FacebookShare on Twitter
  • drumminman
    drumminman Posts: 3,396
    If you can't get Larry's Rings, hurricane nuts will work just fine. If the speaker gaskets are not in good shape you can make new ones out of Armacell, available at Home Depot.
    "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
    · Share on FacebookShare on Twitter