Just got these RTA 12B’s.

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  • Harv2002
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    75v8fja0dizj.jpeg

    I’ll have to go see if I can find some locally. This is the smallest kind I have.

    John
  • Harv2002
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    Again with the sideways picture. I don’t know why it does that.

    John
  • Tony M
    Tony M Posts: 11,964
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    Harv2002 wrote: »
    Again with the sideways picture. I don’t know why it does that.

    John

    When you take a pic, your position of the device taking a photo determines either portrait or landscape.

    I don't know about smart phone pics. but when I download my pics to my PC, the pics appear according to how I held my camera. Portraits will almost always have to be turned after putting them into a program to store them.

    NOW...after downloading ( or up-loading ? ) I click on a picture to look at it. A few choices appear ON TOP of the picture after a couple of seconds. One choice is to turn the pic. 90 degrees to the right. You can keep turning the pic as many times as you desire. It can then be positioned the way you want to view it later on.

    Smart phones pic. orientation adjustment...somebody else will have to opine.

    Most people just listen to music and watch movies. I EXPERIENCE them.

    “Anger is an acid that can do more harm to the vessel in which it is stored than to anything on which it is poured.”
    --Mark Twain.

    “If at first you don't succeed, then skydiving definitely isn't for you.” - Steven Wright
  • tophatjohnny
    tophatjohnny Posts: 4,189
    edited October 2020
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    I know a local cat that has a minty set of these but he wants 500 for them probably not a bad price ??
    "if it's not fun, it's not worth it & remember folks, "It's All About The Music"!!
    *****************************
  • Harv2002
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    So. This is for each crossover so X2.
    4-2uf electrolytic
    2-4.4uf mylar
    1-55uf electrolytic (combo of 2)
    7.5ohm Resistor on the bottom.

    Clarity? Sonicap?
    Mills for the resistor I guess.

    What am I missing?

    John
  • CH46E
    CH46E Posts: 3,595
    edited October 2020
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    Harv2002 wrote: »
    So. This is for each crossover so X2.
    4-2uf electrolytic
    2-4.4uf mylar
    1-55uf electrolytic (combo of 2)
    7.5ohm Resistor on the bottom.

    Clarity? Sonicap?
    Mills for the resistor I guess.

    What am I missing?

    John

    You mean 27uf x4 for each crossover.
  • CH46E
    CH46E Posts: 3,595
    edited October 2020
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    This is what I used.

    8 27uf Jantzen CrossCaps
    4 4.4uf Sonicaps
    2 56uf Mundorf Aluminium Evo cap
    2 7.5 ohm Mills.

    I removed the small silver myca bypass caps.

    These crosso er boards are very easy to solder on.

  • Harv2002
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    CH46E wrote: »
    You mean 27uf x4 for each crossover.

    Yes, I did indeed.

    John
  • Harv2002
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    Thanks so much for the list.

    John
  • CH46E
    CH46E Posts: 3,595
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    Later on another project I found out about solder wick. Made desoldering the old parts so so much easier as well as removing the old solder. Worked much better than my solder sucker.
  • Harv2002
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    Are the Dayton Audio caps the same as Sonicaps? If you search parts express that’s what comes up.

    John
  • CH46E
    CH46E Posts: 3,595
    edited October 2020
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    I'm pretty sure they are not. Only place for Sonicaps is thier own website.

    "Sonicap Capacitors, Sonic Craft" http://www.soniccraft.com/index.php/film-capacitors-sonicap-c-301_49
  • Harv2002
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    CH46E wrote: »
    This is what I used.

    8 27uf Jantzen CrossCaps
    4 4.4uf Sonicaps
    2 56uf Mundorf Aluminium Evo cap
    2 7.5 ohm Mills.

    On the Mills resistors, 5, 10, or 12 watt?

    John
  • Harv2002
    Harv2002 Posts: 56
    edited October 2020
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    x06qlhojozut.jpeg

    Wait not 47.

    John
  • CH46E
    CH46E Posts: 3,595
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    I'm pretty sure I went 10 watt. Id go 10 or 12. Either should be fine.

    FYI that 56uf Mundorf is huge.

    3joazknhc6d5.jpg
  • CH46E
    CH46E Posts: 3,595
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    Harv2002 wrote: »
    x06qlhojozut.jpeg

    John

    I would not go electrolytic. All film 100%.
  • CH46E
    CH46E Posts: 3,595
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    But those are good electrolytics. I used them on my Infinities that needed a 1,600 uf vale and 600 uf value. Film in those values would have been astronomical in price.
  • CH46E
    CH46E Posts: 3,595
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    The Jantzen CrossCaps are very affordable and available in large values.
  • Harv2002
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    Ordered them up!
    Thanks for the pic of the Mundorf.

    John
  • F1nut
    F1nut Posts: 52,301
    edited October 2020
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    Hell no Dayton caps are not Sonicap caps. Dayton and Bennic are the same though, you don't want either.
    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

  • xschop
    xschop Posts: 5,742
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    Daytons= more $ for better amp lol.
    Don't take experimental gene therapies from known eugenicists.
  • pitdogg2
    pitdogg2 Posts: 27,775
    edited October 2020
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    Harv2002 wrote: »
    Are the Dayton Audio caps the same as Sonicaps? If you search parts express that’s what comes up.

    John

    No!
    I'd go low Clarity before the dayton audio
    Dayton audio is made by bennic IIRC.
  • Harv2002
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    Good advise. I got the Sonicaps.

    John
  • CH46E
    CH46E Posts: 3,595
    edited October 2020
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    All Sonicaps? Do tell what ya got?

    Post edited by CH46E on
  • Harv2002
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    CH46E wrote: »
    8 27uf Jantzen CrossCaps
    4 4.4uf Sonicaps
    2 56uf Mundorf Aluminium Evo cap
    2 7.5 ohm Mills.

    This is what I ordered.

    John
  • Gardenstater
    Gardenstater Posts: 4,885
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    You'll save a lot of money over what my example above came out to, hopefully with not very much less performance. Those Jantzen and Mundorf caps have fairly decent ratings compared to Sonicap and Clarity CSA. http://www.humblehomemadehifi.com/Cap.html
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
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    Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
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  • xschop
    xschop Posts: 5,742
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    Ducati makes caps?
    Don't take experimental gene therapies from known eugenicists.
  • CH46E
    CH46E Posts: 3,595
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    No matter how you slice it, they are a huge improvement over 30 year old electrolytics.

    You will very much enjoy the 12b.
  • CH46E
    CH46E Posts: 3,595
    edited October 2020
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    As you can see in my photo above, I had to make some leads so I could relocate that pop can of a cap to the middle.
  • Harv2002
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    xschop wrote: »
    Ducati makes caps?
    Yes but they are attached to a gas tank that feeds 90° Of Desmodronic bliss. If I was really a motorcycle guy, I’d have one just to listen to it!

    John