Spiking SDA-2B's

2

Comments

  • Schurkey
    Schurkey Posts: 2,102
    edited July 2011
    Thirty to fifty bucks for "economy" spikes? Woof.

    Six tee nuts or six hurricane nuts, six plain hex nuts, six 1/4-20 grade 8 bolts about an inch and a quarter long. Longer if you want, won't hurt anything but I think it looks goofy. Might cost five dollars, but probably less. I suppose you could buy brass nuts and brass bolts, but I don't understand why you'd want to. Similarly, you could buy 5/16 or 3/8 hardware, but again, I don't see that it's needed.

    Take a hack saw and cut the heads off the bolts. Sharpen the cut end to a point on a bench grinder. If you spin the bolt by chucking it in a drill motor, and then hold the spinning bolt to the grinding wheel, you'll grind nice 'n' round.

    Install three tee/hurricane nuts in each speaker base, thread in the pointed bolts, secure 'em with a jam nut. Level the speaker as needed. Four spikes (8 total) is harder to level, but otherwise works fine.
  • Toolfan66
    Toolfan66 Posts: 17,243
    edited July 2011
    That is a shame!!! Maybe it's time for me to fill that void if needed..
  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    WilliamM2 wrote: »
    The t-nuts need to be mounted from the inside of the cabinet, so you need to drill all the way through. If you just stick them in the base as suggested, they will easily fall out whenever you move the cabinets.

    No disrespect Will, but is this what you did on your 2B's inspiredsports? I thought the adding of glue would help the t-nuts from falling out of the bottom.
  • Toolfan66
    Toolfan66 Posts: 17,243
    edited July 2011
    T-Nuts need to be on the outside of the speaker not the inside..
  • WilliamM2
    WilliamM2 Posts: 4,775
    edited July 2011
    T-Nuts need to be on the outside of the speaker not the inside..

    Why? I've always put the flange on the inside. That way when you tighten the spikes to the botton, it secures the t-nut, and it can't pull out. I've seen them rip out when installed with the flange on the outside, on heavy speakers.
  • Joe08867
    Joe08867 Posts: 3,919
    edited July 2011
    WilliamM2 wrote: »
    Why? I've always put the flange on the inside. That way when you tighten the spikes to the bottom, it secures the t-nut, and it can't pull out. I've seen them rip out when installed with the flange on the outside, on heavy speakers.

    I also put the t-nut inside and let the bolt come through.

    Why is this wrong it seems the only way to secure them.
  • michaeljhsda2
    michaeljhsda2 Posts: 2,184
    edited July 2011
    WilliamM2 wrote: »
    Why? I've always put the flange on the inside. That way when you tighten the spikes to the botton, it secures the t-nut, and it can't pull out. I've seen them rip out when installed with the flange on the outside, on heavy speakers.

    But what if the floor is uneven? How would you adjust for this because any slack would force the t-nut out.
    SDA SRS 2.3TL's
    Silk Audio MS-90-BT integrated tube amp
    Yaqin MS-20L integrated tube amp
    SDA 2B TL's
  • WilliamM2
    WilliamM2 Posts: 4,775
    edited July 2011
    But what if the floor is uneven? How would you adjust for this because any slack would force the t-nut out.

    I suppose it depends on the spikes. Mine had adjustable tips, separate from the base. Similar to the ones from parts express linked above.
  • dorokusai
    dorokusai Posts: 25,577
    edited July 2011
    I'm not a fan of the PE spikes due to the finish cracking and tips breaking off as Face mentioned previously. Any type of spike achieves the effect, even the stock ones that come with Polk speakers.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
  • sda2mike
    sda2mike Posts: 3,131
    edited July 2011
    i've had my PE spikes on for abt a year and a half...they get moved back and forth on an uneven tile surface...i have no chips or breaks at all...i am now knocking on my wood desk, of course...the 2b's at 80lbs, might be ok with the PE spikes...maybe the heavier beasts are rougher to them...YMMV


    mike
  • pitdogg2
    pitdogg2 Posts: 25,447
    edited July 2011
    sda2mike wrote: »
    i've had my PE spikes on for abt a year and a half...they get moved back and forth on an uneven tile surface...i have no chips or breaks at all

    I've bought several sets all chrome and all still have their finish, but i do not move them all over the house either. The sets with adjustable feet i put a flat washer between the foot and the base of the spike to make up the difference you cannot see it once in place and use blue thread lock.
    some of the sets i have had for 10+ yrs
    But what if the floor is uneven? How would you adjust for this because any slack would force the t-nut out.

    on the one set i did use the T-nuts i put them inside the cabinet. i used a thin flat washers between the cabinet and the spike you also could not see the washer sort of blended right in.
    i also have carpet in all areas
  • Toolfan66
    Toolfan66 Posts: 17,243
    edited July 2011
    If you need to level your speakers the t-nuts on the inside are not going to work with most spikes, and if they are coming out then they are installed wrong. I have yet to have an issue with my spikes and/or t-nuts..
  • F1nut
    F1nut Posts: 50,566
    edited July 2011
    Schurkey wrote: »
    Thirty to fifty bucks for "economy" spikes? Woof.

    Six tee nuts or six hurricane nuts, six plain hex nuts, six 1/4-20 grade 8 bolts about an inch and a quarter long. Longer if you want, won't hurt anything but I think it looks goofy. Might cost five dollars, but probably less. I suppose you could buy brass nuts and brass bolts, but I don't understand why you'd want to. Similarly, you could buy 5/16 or 3/8 hardware, but again, I don't see that it's needed.

    Take a hack saw and cut the heads off the bolts. Sharpen the cut end to a point on a bench grinder. If you spin the bolt by chucking it in a drill motor, and then hold the spinning bolt to the grinding wheel, you'll grind nice 'n' round.

    Install three tee/hurricane nuts in each speaker base, thread in the pointed bolts, secure 'em with a jam nut. Level the speaker as needed. Four spikes (8 total) is harder to level, but otherwise works fine.

    Why stop there, one could just slap some cheap PE drivers into a plywood box and save a lot of money.
    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

  • F1nut
    F1nut Posts: 50,566
    edited July 2011
    I've never heard of anyone putting T-nuts inside before. That's got to be tough trying to drive them in with a hammer. What about the thickness of the base? It seems to me that most spikes do not have very long threads.
    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

  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    Does anybody else have recommendations for spike pads? Specifically gold ones?
  • Conradicles
    Conradicles Posts: 6,081
    edited July 2011
    F1nut wrote: »
    I've never heard of anyone putting T-nuts inside before. That's got to be tough trying to drive them in with a hammer. What about the thickness of the base? It seems to me that most spikes do not have very long threads.

    Plus it seems like if you put them inside they could potentially come out due to heavy weight speakers. Putting them inside seems like a bad idea.:confused:
  • Face
    Face Posts: 14,340
    edited July 2011
    Once the spikes are tightened, they won't come out if mounted inside. One of my pairs are secured that way, and in fact I prefer that method as the speakers seem more stable with no wobble whatsoever.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
  • Conradicles
    Conradicles Posts: 6,081
    edited July 2011
    Face wrote: »
    Once the spikes are tightened, they won't come out if mounted inside. One of my pairs are secured that way, and in fact I prefer that method as the speakers seem more stable with no wobble whatsoever.

    Makes sense. Guess I did not think of it like that.
  • gdb
    gdb Posts: 6,012
    edited July 2011
    Who needs spikes, just get some nylon tipped levelers and......... BTW, there used to be tee nuts that had flat flanges with small holes for screws instead of the usual formed spikes to hold them on/in. Hotttt dammmmmn, found em!:biggrin: The ones at the top of the picture are they.
  • Face
    Face Posts: 14,340
    edited July 2011
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
  • c0redumpt
    c0redumpt Posts: 35
    edited July 2011
    That is a shame!!! Maybe it's time for me to fill that void if needed..

    If you decide to fill the void please let me know, I'd be after 8 spikes and pads for my 1.2 TL's :smile:
  • MillerLiteScott
    MillerLiteScott Posts: 2,561
    edited July 2011
    I have the Parts express spikes and I ordered some M6 bolts and through bolted them in my 2B's. The t-nuts just did not do it for me. Through bolting IMHO is akin to Larry's rings but for spikes. It made a noticeable difference in the bass and focus of the speaker. I also used 3 for each speaker instead of 4. They may not be the best spikes available but I am pleased with the result I got for the money spent.

    Scott
    I like speakers that are bigger than a small refrigerator but smaller than a big refrigerator:D
  • pitdogg2
    pitdogg2 Posts: 25,447
    edited July 2011
    F1nut wrote: »
    I've never heard of anyone putting T-nuts inside before. That's got to be tough trying to drive them in with a hammer. What about the thickness of the base? It seems to me that most spikes do not have very long threads.

    Why use a hammer? drill a hole in a scrap piece of wood use a washer and a bolt to pull the T-nut into the cabinet. easy peasy
  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    So the spikes came in way earlier than expect. I'm going to do the install tomorrow.

    They look fantastic. Nice and heavy, they seem to be a real value.

    Problem is, I don't know what to do with all of the pieces! What may seem obvious to many apparently isn't to me, lol.

    In this photo all of the parts you see go to ONE spike. This has me confused.
    One of the circle pieces is a pad (or so I think) and the other circle piece doesn't thread all the way through, so what's it for?

    I'm assuming it goes t-nut > threaded rod > spike > pad, but that leaves out the circle piece to the right. What to do?

    IMG_7582.jpg
  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
  • headrott
    headrott Posts: 5,496
    edited July 2011
    That is a shame!!! Maybe it's time for me to fill that void if needed..

    That would be very nice of you Larry.

    Greg
    Relayer-Big-O-Poster.jpg
    Taken from a recent Audioholics reply regarding "Club Polk" and Polk speakers:
    "I'm yet to hear a Polk speaker that merits more than a sentence and 60 seconds discussion." :\
    My response is: If you need 60 seconds to respond in one sentence, you probably should't be evaluating Polk speakers.....


    "Green leaves reveal the heart spoken Khatru"- Jon Anderson

    "Have A Little Faith! And Everything You'll Face, Will Jump From Out Right On Into Place! Yeah! Take A Little Time! And Everything You'll Find, Will Move From Gloom Right On Into Shine!"- Arthur Lee
  • F1nut
    F1nut Posts: 50,566
    edited July 2011
    pitdogg2 wrote: »
    Why use a hammer? drill a hole in a scrap piece of wood use a washer and a bolt to pull the T-nut into the cabinet. easy peasy

    Or that. :smile:

    I don't know, I've never had a T-nut pull out, but then again I've got a big hammer.
    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

  • Toolfan66
    Toolfan66 Posts: 17,243
    edited July 2011
    F1nut wrote: »
    Or that. :smile:

    I don't know, I've never had a T-nut pull out, but then again I've got a big hammer.

    That's what she said!!!
  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    That's what she said!!!

    That joke doesn't work with the comment you're referring to. You must be old.
  • gdb
    gdb Posts: 6,012
    edited July 2011
    That joke doesn't work with the comment you're referring to. You must be old.

    It most certainly can work.......if the "she" is a she in title only.:eek: Ever heard "Lola" ?? It's a "mixed up" world !!:wink: You must be young and naive.