SL2500 vs. SL3000 Ohms

rskarvan
rskarvan Posts: 2,374
edited July 2006 in Vintage Speakers
Does anybody know the impedance of both the SL2500 and SL3000 tweeters?
I'm thinking of replacing the SL2500's in a set of Monitor 10 series 2 with the SL3000 tweets. Are they compatible for a direct swap (based upon resistance)?

Thanks.

Ron
Post edited by rskarvan on
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Comments

  • DarqueKnight
    DarqueKnight Posts: 6,765
    edited July 2006
    I don't know the impedance of the SL3000, but I measured the DC resistance at 5.6 ohms. The silk dome replacement for the SL3000, the RD0198-1, is also listed as the replacement for the SL2500, so I would think the impedances of the SL2500 and SL3000 are close, if not identical. The DC resistance of the RD0198-1 is also 5.6 ohms.
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  • decato
    decato Posts: 188
    edited July 2006
    I have a pair of the Polk Monitor 10 Series 2. Years ago I replaced the SL2500 with the SL3000 and then the RD0198-1. Changing the tweeter is a slight improvement, whether the SL3000 or RD0198. In general, the 10 Series 2 is a nasal-sounding speaker. The tweeter comes in at a pretty low frequency, contributing to its forceful sound in the upper midrange/lower treble. In addition to my SRS models, I have 'hacked' this model with pretty good results. I based the crossover changes off the 7 Series 2, which I always thought sounded smoother. If you (or anyone else) is interested, I can dig up the documentation on the changes I made.
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