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KG 3.5 K-1002-K Replacement?

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One of my Kg 3.5s is really distorting the low, low frequencies in my HT setup. Otherwise it still generally sounds OK. No distortion in the other speaker.

 

Haven't pulled it apart yet but, from the front only, the K-1002-K woofer(?) looks undamaged. I am running a R-100SW sub & R52-C with the KG 3.5s. Haven't settled on rear speakers yet. Might actually end up getting something different for the fronts & putting the KGs in the rear, but either way want to get the KGs working properly.

 

I am considering a crossover rebuild (Crites) but want to deal with the K-1002-K issue first. I've done a few searches & haven't found a source for the OEM speakers (no surprise) & will probably post a WTB in the Garage Sale forum, but do see replacement copies from MA Audio for about $65/each. 

 

Anyone have experience with the MW Audio MW-5082 8" replacement speakers? I imagine if I swap out one I should replace both? 

 

Any other thoughts/suggestions?

 

Thanks,

 

Frank

 

 

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Well, there doesn't seem to be much interest in discussing rebuilding KG 3.5s, but I thought I'd post my experience in doing so anyway.

 

I ended up replacing both K-1002-K woofers with 8 Ohm Dayton Audio RS225P-8A 8" Reference Paper Woofers @ about $65/ea. from Parts Express. They are not "drop-in." I had to enlarge the holes in the speaker cabinets (a real PITA!) & put bigger push-on connectors on the speaker wires to match the spades on the new speakers. The new speakers have 6 screw holes & the originals only had 4 so I ended up drilling new holes as well. That said, the new woofers sound very good in comparison to the 25 year old OEM ones.

 

Since the KG 3.5s are the fronts in a HT setup I decided to swap out the phenolic tweeter diaphragms for Crites titaniums. I figured it might give the high end a bit more clarity & that might help with cleaning up the dialog a bit. I had done this with my Fortes long ago & liked the mod with them. These diaphragms are definitely drop-in & took me about 20 careful minutes to make the replacements. As expected, they did brighten up the top end & indeed have helped to make the dialog in movies easier to understand.

 

I considered doing something with the crossovers & may someday, but for now, the mods have really breathed new life into these nice older speakers. Even the wife thinks they sound much better & have really improved our viewing pleasure! 🙂

 

Take care,

 

Frank

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Had you run a frequency sweep on your speakers before you started?  Sometimes that can help narrow down problems.  There's a few good ones on YouTube if you have that capability in your H/T setup.   

 

My standard advice applies; dont feed ported speakers any frequencies below their design low cut-off point.  Run a sub and use a crossover to the mains.

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Currently, I am running a 3.5 HT system with a sub. Haven't decided on rear speakers yet. I'm using a Marantz NR 1509 & finished the setup with Audyssey. 

 

So, how would I run a crossover between speakers? I haven't fine-tuned the sub beyond the Audyssey settings but I think it's set around 80Hz.  

 

Frank

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