SDA SRS Crossover parts list

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Im getting ready to order all the caps and resistors for my SRS blade blade crossovers and would like comments and suggestions from those who have experience. I plan to do caps and resistors using original board with an added board holding the large caps. I will leave the inductors in place aside from the 16 mh I have already replaced with Jantzen C coil. Attached is everything needed. The components were chosen with a reasonable budget in mind. Thoughts, corrections, suggestions welcome.

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  • skipshot12
    skipshot12 Posts: 1,075
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    I’m not seeing your attached components….
    Interested in your choices and what you think of the sound difference you hear or not hear.
  • gregmoyers
    gregmoyers Posts: 140
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    Crap. Here it is.vctrp4bvu1tb.png
  • skipshot12
    skipshot12 Posts: 1,075
    edited May 2023
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    After doing a lot of research I decided on the tried and true that others have done here.
    I got too tied up with reading all the differences in the resistors & caps from all the boutique manufacturers that my head started to spin.
    Ended up with the Solen caps at non-critical points, Sonic Craft caps & milks resistors.

    As F1 has said many times… they have all the values needed.

    Bahahaaaa….
    Milks resistors.
  • skipshot12
    skipshot12 Posts: 1,075
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    The Clarity Caps were one’s I was contemplating along with Dueland resistors.
  • gregmoyers
    gregmoyers Posts: 140
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    You leave out the 750 pF caps? Remove them? Leave them in?
    I was advised to use Clarity’s for hi pass and Solen for low pass. Solen has the hard to get values and 250v so a bit smaller. I don’t think 400v is really needed is it?

  • VR3
    VR3 Posts: 28,310
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    Clarity and duelund is a great combo
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
  • gregmoyers
    gregmoyers Posts: 140
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    Clarity for hi?
  • gregmoyers
    gregmoyers Posts: 140
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  • VR3
    VR3 Posts: 28,310
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    Sure, they work all over.

    If you want to go crazy but still reasonable you can do the cmr for the highs and csa for the mids.... Will sound awesome
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
  • gregmoyers
    gregmoyers Posts: 140
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    👍🏻
    What resistors specifically ?
    I had settled on Vishay Mills as Mills don’t cover the values needed but….made in mexico?
    What else is available and has a proven thumbs up ? Which Duelund? Therolike 4.
  • gregmoyers
    gregmoyers Posts: 140
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    Should I leave those 750pF caps in place or leave them out?
  • VR3
    VR3 Posts: 28,310
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    Last I checked duelund only makes the cast 10 watts... The standard would be new old stock but they can make any value you want.

    Path audio is easily one of, if not the best resistor on the market right now
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
  • gregmoyers
    gregmoyers Posts: 140
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    So I got confirmation on removing the 750pf caps from the circuit.
  • gregmoyers
    gregmoyers Posts: 140
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    Cant find 92 uF caps for hi pass except Solen. I wanted to use stick with Clarity on hi pass. Should I use Solen 92’s or I can get to 90 or 94 with Clarity? Or is there something better?
  • pitdogg2
    pitdogg2 Posts: 24,928
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    gregmoyers wrote: »
    Should I leave those 750pF caps in place or leave them out?

    They go bye bye, no longer needed with the better caps.
  • gregmoyers
    gregmoyers Posts: 140
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    Sweet 2x47 it is. Thanks!
    Now decide on $350 for Path or $120 for V Mills. 🤔
  • gregmoyers
    gregmoyers Posts: 140
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    After hours of trying to find the right values, considering price, avail stock, quality and recommendations I ordered
    Clarity CSA caps for hi pass
    Solen for low pass
    Path resistors for 22.5 ohm
    Mills for 2.7, 7.5, and 15 ohm
    What do you think?

  • gregmoyers
    gregmoyers Posts: 140
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  • gregmoyers
    gregmoyers Posts: 140
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    VR3 wrote: »
    Last I checked duelund only makes the cast 10 watts... The standard would be new old stock but they can make any value you want.

    Path audio is easily one of, if not the best resistor on the market right now
    Having trouble finding Path 22.5. Parts Connextion cant give me lead time. Hi fi Collective has only 22’s.
    What if I use 22’s for T2 and T3 ? Do you think thats a mess? Do you know where else I can try to get them?
  • gregmoyers
    gregmoyers Posts: 140
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    gregmoyers wrote: »
    VR3 wrote: »
    Last I checked duelund only makes the cast 10 watts... The standard would be new old stock but they can make any value you want.

    Path audio is easily one of, if not the best resistor on the market right now
    Having trouble finding Path 22.5. Parts Connextion cant give me lead time. Hi fi Collective has only 22’s.
    What if I use 22’s for T2 and T3 ? Do you think thats a mess? Do you know where else I can try to get them?

    I just cancelled the Mills and ordered all Path
    I will just wait for the four 22.5
    20% off at Parts Conx
  • gregmoyers
    gregmoyers Posts: 140
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    Been waiting for Path 22.5’s Now Parts Conn say’s they never had them and can’t get them.
    I have all the others. Now what? Anyone have any?
  • gregmoyers
    gregmoyers Posts: 140
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    On Sda srs…Which tweeters are which as far as top to bottom physical placement in the cabinet to T 1-3 number and freq cutoff?
  • F1nut
    F1nut Posts: 50,086
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    The 22.5 ohm Path Audio resistors are a special order item with a 10 or 20 minimum quantity, I don't remember which. Just use the tried and true Mills.
    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

  • pitdogg2
    pitdogg2 Posts: 24,928
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    22 ohm is stock at hifi collective uk
    £25 each.
    The 22.5 is special order only. @VR3 can answer how many is minimum order.
  • pitdogg2
    pitdogg2 Posts: 24,928
    edited June 2023
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  • VR3
    VR3 Posts: 28,310
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    On the srs the second from the bottom is the main tweeter

    I believe path special order minimum is 10
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
  • Gardenstater
    Gardenstater Posts: 4,281
    edited June 2023
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    gregmoyers wrote: »
    On Sda srs…Which tweeters are which as far as top to bottom physical placement in the cabinet to T 1-3 number and freq cutoff?

    The answer is in the schematic. T3 gets the widest bandwidth and goes the lowest. T2 goes all the way up but not as low as T3. T1 and T4 are limited in how high they can go with T4 having the lowest bandwidth of all four tweeters. I'm not electronics guy so somebody correct me if this is wrong. Manual says 2kHz is the lowest any tweeters go because that is where the stereo drivers start to play.....that freq. and lower. I don't know what the other rolloff freqs are for the other tweeters. Couldn't find that info. PS: Julian Hirsch in Stereo Review Nov 1985 says "presumably" only one driver is in use above 10kHz. FWIW. I think two are.

    nod2iv8doxd5.jpg


    Post edited by Gardenstater on
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