bkolfo4 Posted August 25, 2011 Report Share Posted August 25, 2011 (edited) Depends on the crossover design, but yes. The caps and coils in the crossovers filter AC current. A DMM will measure DC, so it will not measure correctly, since a charged cap has an infinite DC resistance. An example - measure a 4 ohm tweeter with a cap in series - it will be a really high DC resistance, but will be 4 ohms at the frequencies above the crossover frequency when playing music. Edited August 25, 2011 by bkolfo4 Quote Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz. Link to comment Share on other sites More sharing options...
bkolfo4 Posted August 25, 2011 Report Share Posted August 25, 2011 Is that an actual 3 way setup, or a 2 way setup and you are going to add a low pass crossover and midbass driver? Quote Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz. Link to comment Share on other sites More sharing options...
OrionStang Posted August 25, 2011 Author Report Share Posted August 25, 2011 It is a 3-way set, but there are seperate crossovers for the midbass, and the tweeter/midrange. Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
OrionStang Posted August 25, 2011 Author Report Share Posted August 25, 2011 Each speaker reads 3.7ohms. Whatever, i'll just hook them up and dd-1 the amp. Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
Ray Posted August 25, 2011 Report Share Posted August 25, 2011 It will be 2ohm effective load on the amp Will run just fine Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
OrionStang Posted August 25, 2011 Author Report Share Posted August 25, 2011 It will be 2ohm effective load on the amp Will run just fine 500 watts per door Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
94retta(219) Posted August 25, 2011 Report Share Posted August 25, 2011 Learned something new from this! Thanks You will not get an accurate DMM reading through a crossover. Caps will look like an open circuit with DC applied, so DCR will be infinite. If the crossovers are designed correctly so that the frequencies between the 3 drivers do not overlap, the amp will only "see" each driver within it's frequency range. This means they do not act like drivers in parallel. Any frequencies that the crossovers allow over lap between drivers, the amp will see those two drivers in parallel. If there are resistors in series with any drivers, it would affect the reaistance over the frequencies that driver plays. Coils in series will add some reaistance, but normally well below 1 ohm. Quote BUILD LOG Link to comment Share on other sites More sharing options...
Ray Posted August 25, 2011 Report Share Posted August 25, 2011 Headroom Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
AI James Posted August 25, 2011 Report Share Posted August 25, 2011 lots of power never hurt anyone. Quote Link to comment Share on other sites More sharing options...
bkolfo4 Posted August 25, 2011 Report Share Posted August 25, 2011 It will be 2ohm effective load on the amp Will run just fine If it is a true 3 way setup, it will be 4 ohms. If the mids are not bandpassed, then it will be 2 ohms over the frequencies where the midbass and mids overlap, but 4 ohms above the frequencies where the midbass speakers are low passed. Brian Quote Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz. Link to comment Share on other sites More sharing options...
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