One More 2BTL Mod Question

intangible
intangible Posts: 262
edited December 2010 in DIY, Mods & Tweaks
Recapped my crossovers and the speakers still function - one hurdle down. Many thanks to F1nut for the excellent topic explaining the details.

Now, I purchased a pair of RDO-198s off of eBay to replace the SL2000s, and have run into a bit of a snafu. I guess I actually have a couple of questions:

Any way to verify these are actually RDO-198s? They have no identifying markings of any kind, and they look just like this picture of the RDO-194s I found, although it comes captioned that the two are very similar looking.
http://www.lablauw.com/sale/polk_sda2b/IMG_1260.JPG

The SL2000s are connected with two identical sort of spade adapters to the end of the wires. The new tweeters have one larger than the other. I take this as a possible sign that these are indeed RDO-198s, as the RDO-194s are supposedly "hot swappable", but I figured I should make sure before I go soldering wires to them.

One last question: one post is red and the other uncolored; am I correct in assuming the red is hot and the uncolored ground? Does it make any difference if they are connected backwards, as long as the two tweeters are connected in the same manner?

I appreciate the help.
Post edited by intangible on
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Comments

  • ben62670
    ben62670 Posts: 15,969
    edited December 2010
    Yes the red one is hot. Did you add the 5.8uf cap to make your XO compatable with the RDO-198 tweeter?
    Merry Christmas
    Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • Face
    Face Posts: 14,340
    edited December 2010
    Backwards=out of phase=bad.

    If you solder the leads, be careful, it's easy to destroy a tweeter with too much heat.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
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  • drselect
    drselect Posts: 664
    edited December 2010
    The RDO-198s have two different size spades and the RDO-194s have the same size spades

    The red is the hot.

    Not sure about the connecting backwards.

    edit: dang it to slow
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  • intangible
    intangible Posts: 262
    edited December 2010
    Thanks a lot, guys.

    I did add the extra cap. They are bright as hell at the moment, as you said they would be with the SL2000s still in them.

    I realize wiring the tweeters backwards puts them out of phase with the woofers, but would it make any difference as long as they were in phase with each other? Since I know which is hot, I will obviously wire them correctly; I'm just curious now.

    Is there a typical way to attach the mismatched lead without soldering it? I am a little nervous about soldering to tweeter, so I would be happy to have an alternative.
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  • ben62670
    ben62670 Posts: 15,969
    edited December 2010
    Cut the ends off the wires and get the right sized spades.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • intangible
    intangible Posts: 262
    edited December 2010
    Oh yeah, that makes sense.
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