OrionStang Posted August 25, 2011 Report Share Posted August 25, 2011 I'm having no luck selling the Rainbows, so I might use them. Each channel of my 175.4 will have a set of 3 speakers on it, midbass, midrange, and tweeter. The midbass has its own crossover, and the mids/tweets share a crossover. Each individual speaker has a 4 ohm vc. Is there a way to figure out the ohm load to the amp without hooking everything up and getting a dmm reading? I'm still undecided whether to use them or not. Anyway here is a picture of how the manual shows to wire it up. Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
AI James Posted August 25, 2011 Report Share Posted August 25, 2011 Scrap wire then dmm Quote Link to comment Share on other sites More sharing options...
OrionStang Posted August 25, 2011 Author Report Share Posted August 25, 2011 But that's the right way (sarcasm). I was hoping for a magic formula to figure it all out. 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 Since both crossovers will be mounted near eachother, can I just run 1 wire and split it off into 3? Instead of running separate wires all the way from the amp to the crossovers? They are all on the same channel anyway. Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
IH8PunkRok Posted August 25, 2011 Report Share Posted August 25, 2011 you can figure it out mathematically but you need to know all the details of the xover like the impedance of each of the components inside and the path the signal takes such a headache for a 3 way Quote -Matt2005 Dodge Magnum RTJVC KD-AVX1 2 PPI S580.2 Obsidian Audio ST1 Horn Tweeters PRV 8MB450s Audio Legion 3500.1D 2 RE MT 18s 360 ah LiFePO4 BatterySHCA 2/0 155.2 @ 29 hzKicker CVR 15's buildDD 3512e buildMini T-Line Build(6) 8s BuildNightshade 15s Wall BuildMagnum AB XFL 12s BuildNewest Magnum Build Link to comment Share on other sites More sharing options...
OrionStang Posted August 25, 2011 Author Report Share Posted August 25, 2011 Im gonna wire it up after I go pick up my wife from work. Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
skittlesRgood Posted August 25, 2011 Report Share Posted August 25, 2011 my first guess would be 2ohm but i really dont know... i had the midbass on its own channel when i did mine. yes, you can run one set of speaker wires then split them at the crossovers. Quote If I answered you in a well mannered, informative way, you asked a good question or had a good attitude. If I was an asshole, you asked a stupid question or you had a fucktard attitude... or I was in a bad mood. Team BassickHU: Pioneer AVIC Z110Front: Peerless SLS 6.5", Peerless HDS 4", Rainbow tweeter - running activeAmp: JL HD600/4 and DC 4 channel (bridged to midbass)Processor: JBL MS-8Subs: 2x 12" AA MayhemsAmp: DC 3kElectrical: DC power 270xp alt. 1/0 big 4. XSpower D3400 and six D680s. http://www.stevemeadedesigns.com/board/topic/121795-29-update-the-buick-is-getting-a-rebuild/ Top career scores: DBdrag 151.7 MECA SQ 82.25My SOTM build Yeah. im pretty sure they dont warranty retarded people. Link to comment Share on other sites More sharing options...
CstrokerV Posted August 25, 2011 Report Share Posted August 25, 2011 if the xover is from the speaker set then the manual will tell you lol... other than that you will have to dmm them... but the xover i was messing with if i hooked a 4 ohm mid and a 4 ohm tweeter to them it was still 4 ohms not sure what would happen if i did 8 maybe ill try tomorrow Quote my build http://www.stevemeadedesigns.com/board/topic/142505-small-build-log-4-dc-lvl3-10s-tl-update-link-to-rebuild/ http://www.stevemeadedesigns.com/board/topic/154258-rebuild-6-lvl3-12s-update-small-video-nothing-spectacular/ new build http://www.stevemeadedesigns.com/board/topic/188181-03-trailblazer-slow-build-8-dc-lvl3-12-m1-motor-m2-parts/ Link to comment Share on other sites More sharing options...
bkolfo4 Posted August 25, 2011 Report Share Posted August 25, 2011 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 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 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. So, in plain English, are you saying its a waste of time to wire these together and put the dmm on them? I'll be back in an hour or so. Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
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