Resistor value in SRS 2 (pin/blade)

Hello,
When I rebuilt my crossovers for my SRS 2's I used Mills MRA10 resistors instead of MRA12. Do you think these can handle the power or should I replace them with the MRA12. The 10's are the 7.5 ohm resistors in the signal path to the tweeters. I've been getting some pinched sounding vocals at fairly high levels and some "ringing" in mid to high frequency orchestra stuff which I didn't have before.
Any help will be appreciated.
Maketrax :cool:

Answers

  • pitdogg2pitdogg2 Posts: 16,761
    What tweeters are you using?
    One would think 10 watt would have been sufficient.
  • jimkelly101jimkelly101 Posts: 24
    They're RDO194 tweeters in a SDA SRS2. I thought they would be sufficient also which is why I used them. I'm just searching for a solution for the "ringing" and occasional pinched vocals.
    Maketrax :cool:
  • F1nutF1nut Posts: 44,820
    The original resistors were 5 watt, so 10 watt is way more than enough.

    Political Correctness'.........defined

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    President of Club Polk

  • westmassguywestmassguy Posts: 6,671
    The original sand-cast resistors were 5 watt. The 10 watt Mills are fine. Which capacitors are you using in the high-pass section? Did you eliminate the Polyswitches?
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  • jimkelly101jimkelly101 Posts: 24
    Sonicaps are used in the high-pass section. The polyswitch was replaced by a .5mf Mills MRA12 resistor.
    Maketrax :cool:
  • F1nutF1nut Posts: 44,820
    I suspect you are now hearing the short comings of your upstream components.
    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

  • jimkelly101jimkelly101 Posts: 24
    I'm using the pre-amp out from a Harmon-Kardon receiver. Pre-amp to a Carver TFM-42 amp. These items are working properly.
    Maketrax :cool:
  • F1nutF1nut Posts: 44,820
    Yep, I nailed it.
    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

  • jimkelly101jimkelly101 Posts: 24
    Thanks but I've swapped pre-amps and power amp and these items are working perfectly. These same components were used with these speakers before re-building
    the crossovers and while building the crossovers I just replaced the components as I removed the old ones. I also had a schematic from Polk to assist.
    I only re-built these crossovers because they were 30+ years old. They still sounded very good.
    Maketrax :cool:
  • F1nutF1nut Posts: 44,820
    There's a difference between working correctly and the actual quality of what they are putting out. Your speakers are now capable of showing the short comings of those upstream components.
    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

  • jimkelly101jimkelly101 Posts: 24
    I don't think you nailed anything, Pal. You just showed your prejudice towards older brands you didn't like. These were very good sounding pieces and still are if serviced properly. The Carver TFM-42 is 375 watts per channel at 8 ohms and sounds great! And it was re-capped by Rita at Carver maybe 11 years ago. Also this gear is the same gear that was used before the speaker upgrades, and the speakers sounded very good before the work.
    Finally I would be willing to bet that I have more experience in this business of audio than you do. From managing audio stores in the '60s and '70s to playing in bands for 30 years. I was doing sound for bands for several years and owned and operated two recording studios.
    I just came up here to see if anyone had any ideas about these problems without any smart comments from someone like you - Pal!

    Maketrax :cool:
  • F1nutF1nut Posts: 44,820
    Good luck, you need it.
    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

  • jimkelly101jimkelly101 Posts: 24
    Arrogant ****.
    Maketrax :cool:
  • F1nutF1nut Posts: 44,820
    If I was being arrogant I would have said you obviously didn't learn much over the years. Instead I offered my educated experience as to the likely reason for the issue you are experiencing, which you dismissed with prejudice. So, after all it appears you didn't learn much over the years.
    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

  • jimkelly101jimkelly101 Posts: 24
    No, you're just showing your true self with comments like "Yep, nailed it" and "Good luck, you need it." I'm closing up this so-call conversation. Just continue to write things in a way so that other members don't realize how rude you are.
    Bye!
    Maketrax :cool:
  • F1nutF1nut Posts: 44,820
    edited July 25
    I know the truth can be hard to handle, but you could at least try to understand and accept it.
    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

  • jimkelly101jimkelly101 Posts: 24
    Hi Clipdat! I really like the picture. Very funny. First smile on my face for the last hour and a half. Thanks for this. Have a great day and stay safe!
    Maketrax :cool:
  • gimpodgimpod Posts: 1,794
    @jimkelly101 being a bit touchy today are we?
    Pink Floyd, Just makes me want to turn it up too 12 and share it with the world!!. JMO
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  • invalidinvalid Posts: 103
    Maybe the caps need some burn in time. Mine didn't sound great until I had several hours on them.
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