update on my 2B TLs

sda2mike
sda2mike Posts: 3,131
edited May 2010 in Vintage Speakers
well, i'm probably around the 100 hour mark, i'd guess. i went from being wowed...coulda been cause i was without my sda's for 2 weeks:eek:..to really being impressed with how great they sound! lower and more defined bass, mids are clear, the highs go: tee, tee, tee...instead instead of tss, tss, tss:p in essence t: cymbals sound like cymbals....

NOW the last 5-8 hours have sounded FLAT! i ask where's the bass? the volume is gone...the soundstage is compressed...WTF happened? is this part of the burn-in process?:confused:

anyone care to chime in with their experience?

thanks
mike
Post edited by sda2mike on
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  • Vette C6.r
    Vette C6.r Posts: 1,560
    edited May 2010
    I have heard on several occasions the XO's do that.

    I never experienced it with mine but plenty others have.
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  • sda2mike
    sda2mike Posts: 3,131
    edited May 2010
    oh good! thought i was losing it! don't know what i'd do if my tunes sounded FLAT!!!!:eek:
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  • Vette C6.r
    Vette C6.r Posts: 1,560
    edited May 2010
    SS rules !!!!!!!!!!!!
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  • F1nut
    F1nut Posts: 50,757
    edited May 2010
    NOW the last 5-8 hours have sounded FLAT! i ask where's the bass? the volume is gone...the soundstage is compressed...WTF happened? is this part of the burn-in process?

    More than likely. The general rule of thumb is that it will take at least 200 hours before things settle down.
    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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  • hearingimpared
    hearingimpared Posts: 21,136
    edited May 2010
    F1nut wrote: »
    More than likely. The general rule of thumb is that it will take at least 200 hours before things settle down.

    Yep and possibly more depending on how you are burning them in.
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  • sda2mike
    sda2mike Posts: 3,131
    edited May 2010
    hearingimpared wrote: »
    Yep and possibly more depending on how you are burning them in.

    i'm just listening as normal....last weekend i had the pre at the 10 o'clock position for probably 6 hours! that's when thing's were sounding great;)

    is there a burn-in procedure?

    thanks
    mike
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  • hearingimpared
    hearingimpared Posts: 21,136
    edited May 2010
    sda2mike wrote: »
    i'm just listening as normal....last weekend i had the pre at the 10 o'clock position for probably 6 hours! that's when thing's were sounding great;)

    is there a burn-in procedure?

    thanks
    mike

    When I did my 1.2TL xovers, I ran my CD in loop mode and played full range music, like classical at medium volume continuously. It took 340 hours before the caps settled in.

    I got the same symptoms you spoke of and more. Sometimes the high would sound like fingernails across a blackboard. Sometimes the bass just wasn't there, other times it sounded flat and lifeless etc. but once they did finally break in it was like they snapped into focus and just kept sounding better. At around 400 hours they were sounding sweet and have since.
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  • sda2mike
    sda2mike Posts: 3,131
    edited May 2010
    thanks, H.I.:cool:
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  • hearingimpared
    hearingimpared Posts: 21,136
    edited May 2010
    sda2mike wrote: »
    thanks, H.I.:cool:

    There are a lot more components on the xovers in the 1.2TLs. I was just giving you an example of how long it can take. Your's should not take that long but your problem absoltely sounds like the burnin time issue.
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  • MillerLiteScott
    MillerLiteScott Posts: 2,561
    edited May 2010
    400 hours(ish) is when my 2BTL's sounded right to me. Before that they sounded shouty. It is well worth the wait.

    Enjoy,

    Scott
    I like speakers that are bigger than a small refrigerator but smaller than a big refrigerator:D
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  • Des Moines
    Des Moines Posts: 115
    edited May 2010
    I went through the same SQ highs, forward, and flat thinking that after 100 hours it should all be coming together. The wait is longer and tougher than expected. Now at 300 hours and the addition of Ben's custom SDA cable, the 1Cs are starting to sound like a concert in my living room!
    HT in Progress
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  • inspiredsports
    inspiredsports Posts: 5,501
    edited May 2010
    MillerLiteScott wrote: »
    . . . 400 hours(ish) is when my 2BTL's sounded right to me . . .

    This was my reality also with my SDA 2B TL upgrade. Sonicaps take a long time to season, but "oh so worth it"!

    With your decrease in sound quality, has anything changed like maybe an air leak around a driver or the speaker cable/IC port? Could the interconnect cable have come loose?
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  • hearingimpared
    hearingimpared Posts: 21,136
    edited May 2010
    Don't you guys know that burnin is a myth!:eek::D;)
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  • george daniel
    george daniel Posts: 12,096
    edited May 2010
    if your sonicaps really love you,they'll come back;)
    JC approves....he told me so. (F-1 nut)
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  • hearingimpared
    hearingimpared Posts: 21,136
    edited May 2010
    george daniel wrote: »
    if your sonicaps really love you,they'll come back;)

    Like Shane did?:eek::D
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  • sda2mike
    sda2mike Posts: 3,131
    edited May 2010
    inspiredsports wrote: »
    This was my reality also with my SDA 2B TL upgrade. Sonicaps take a long time to season, but "oh so worth it"!

    With your decrease in sound quality, has anything changed like maybe an air leak around a driver or the speaker cable/IC port? Could the interconnect cable have come loose?

    no the cabs are tight...i/c is secure...just young xover components, i'd gather.
    last night, i put in a coupla hours. pink floyd 'the division bell' sounded incredible! i was hearing things in the mid and upper ranges that weren't there before...i played some anita o'day as well...the vocals were killer...BUT, playing pat martino 'east' was bad...sounded like the piano was out of tune..
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  • george daniel
    george daniel Posts: 12,096
    edited May 2010
    Mike-- the consensus is to let em burn in and then do some critical listening,,it's gonna be like a roller coaster ride for the first few days,,then,,you are:) there.
    JC approves....he told me so. (F-1 nut)
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  • sda2mike
    sda2mike Posts: 3,131
    edited May 2010
    george daniel wrote: »
    Mike-- the consensus is to let em burn in and then do some critical listening,,it's gonna be like a roller coaster ride for the first few days,,then,,you are:) there.

    yeah! roller coaster! very appropriate! thrill ride and from what i hear, the money shot is yet to come:)
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  • Bobsama
    Bobsama Posts: 526
    edited May 2010
    If you mortite'd them, don't forget to tighten anything sealed. That stuff takes a bit to soften and if you leave them loose, they'll sound worse than before.
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