Polk RTi12 tweeter resistor replacement recommendation question.

Tony M
Tony M Posts: 11,151
edited July 2020 in Troubleshooting
I read a thread where a guy used a Mills 12 watt resistor. He didn't state the ohms.

I read a schematic where it's 2.5 ohms / 5 watts.

Should I order the 2.5ohm / 12 watt Mills resistors?

For another set of speakers...
I can't find a 4.7ohm Mills replacement at Parts express.

They have 4.5 ohm and 5.0 ohms.
Which would be better?

thanks.
Most people just listen to music and watch movies. I EXPERIENCE them.
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  • Tony M
    Tony M Posts: 11,151
    Here's the schematic for the RTi12s;
    chba5qi6nlqc.png
    Most people just listen to music and watch movies. I EXPERIENCE them.
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  • pitdogg2
    pitdogg2 Posts: 25,437
    They're many places besides parts express that sell vishay-mills resistors and yes you can go up in wattage but keep the same ohm value.

    Go to sonic craft and look at the resistors there. Jeff is good people.
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  • Tony M
    Tony M Posts: 11,151
    edited July 2020
    Will do.
    Sonic Craft it is.

    Will the 4.5 ohm replacement do in place of the 4.7 ohm that's on the board now?

    Or the 5.0 ohm?
    Most people just listen to music and watch movies. I EXPERIENCE them.
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  • Tony M
    Tony M Posts: 11,151
    edited July 2020
    I'm ready to place an order...

    4.5 or 5.0 /12 watts.

    Will one make the tweeter brighter or softer or it doesn't matter much either way?

    There is no 4.7 Mills resistor made. :#

    There are some Daytons on the Parts express site. These are the ceramic style though.
    Dayton Audio DNR-4.7 4.7 Ohm 10W Precision Audio Grade Resistor
    Post edited by Tony M on
    Most people just listen to music and watch movies. I EXPERIENCE them.
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  • pitdogg2
    pitdogg2 Posts: 25,437
    Tony M wrote: »

    There is no 4.7 Mills resistor made. :#


    Really ??


    http://www.soniccraft.com/product_info.php/47-ohm-mills-mra-10-p-3662
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  • Tony M
    Tony M Posts: 11,151
    pitdogg2 wrote: »
    Tony M wrote: »

    There is no 4.7 Mills resistor made. :#


    Really ??


    http://www.soniccraft.com/product_info.php/47-ohm-mills-mra-10-p-3662

    :o
    when was 4.7 =to 47?

    4.7+42.3=47

    Most people just listen to music and watch movies. I EXPERIENCE them.
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  • pitdogg2
    pitdogg2 Posts: 25,437
    Oh well I tried...
    Maybe next time click the link. It plainly states on the sight 4.7 ohm 10 watt. It's also an original mills not vishey-mills.

    Or hey call Jeff and ask he's a great guy to talk to.
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  • F1nut
    F1nut Posts: 50,541
    Tony M wrote: »
    pitdogg2 wrote: »
    Tony M wrote: »

    There is no 4.7 Mills resistor made. :#


    Really ??


    http://www.soniccraft.com/product_info.php/47-ohm-mills-mra-10-p-3662

    :o
    when was 4.7 =to 47?

    4.7+42.3=47

    Click the link and then apologize to Ivan.
    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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  • Tony M
    Tony M Posts: 11,151


    F1nut...I see 47 ohms in the link title. ;) I thought Ivan didn't see the coma between the 4 and 7 in my questions and then statement.

    Maybe Ivan should've said it says 47 ohms but will be a link to a Mills 4.7 ohm. Maybe you should criticize Ivan instead of me. ;)

    Why does the link show 47 ohms?!!

    I clicked on the link and saw 4.7 ohms at the top a minute ago.

    I won't apologize for the above stated reason, but I will...

    Thank you very much Ivan! ;) I really appreciate your link to the value of a Mills resistor I was searching for. B) I will now complete my order with the others I have in the cart and submit it for filling.

    Let the soldering begin. :)

    Most people just listen to music and watch movies. I EXPERIENCE them.
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  • audioluvr
    audioluvr Posts: 5,582
    They clearly don't carry a 47 ohm Mill's so why add a "." just for you? It's a link. Not a description. :D
    Gustard X26 Pro DAC
    Belles 21A Pre modded with Mundorf Supreme caps
    B&K M200 Sonata monoblocks refreshed and upgraded
    Polk SDA 1C's modded / 1000Va Dreadnaught
    Wireworld Silver Eclipse IC's and speaker cables
    Harman Kardon T65C w/Grado Gold. (Don't laugh. It sounds great!)

    There is about a 5% genetic difference between apes and men …but that difference is the difference between throwing your own poo when you are annoyed …and Einstein, Shakespeare and Miss January. by Dr. Sardonicus
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  • Tony M
    Tony M Posts: 11,151
    edited July 2020
    They don't?

    This is why Ivan should've put a , just for me. :D

    http://www.soniccraft.com/product_info.php/47-ohm-vishay-mills-mra-12-p-4687
    47 Ohm Vishay Mills 12 watt MRA-12
    Most people just listen to music and watch movies. I EXPERIENCE them.
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  • audioluvr
    audioluvr Posts: 5,582
    Well technically that's a Vishay but I'll give you partial credit
    Gustard X26 Pro DAC
    Belles 21A Pre modded with Mundorf Supreme caps
    B&K M200 Sonata monoblocks refreshed and upgraded
    Polk SDA 1C's modded / 1000Va Dreadnaught
    Wireworld Silver Eclipse IC's and speaker cables
    Harman Kardon T65C w/Grado Gold. (Don't laugh. It sounds great!)

    There is about a 5% genetic difference between apes and men …but that difference is the difference between throwing your own poo when you are annoyed …and Einstein, Shakespeare and Miss January. by Dr. Sardonicus
    · Share on FacebookShare on Twitter