Mr. 973808 Posted December 8, 2006 Report Share Posted December 8, 2006 Here's my scenario. I have a Crossfire CF2 8" sub that I'm using as a house sub. I don't know much about the specs because it given to me. But I do know it can take a HIT from some bass! I have it hooked up to a RCA STA-3900 house receiver (100w rms/ 200w total). My problem I notice one day that the sub was playin differently. Instead of the push/pull motion that it normally operates in. Its playin in reverse pull/push motion. I know that this means that it's out of phase. SO HOW THE HELL DO I GET BACK IN PHASE!!! I don't want to blow my baby hell it's the loudest and best sub in the house. So please help me before I blow it. Thanks P.S. I tried reversing the wires but still plays in pull/push motion especially on long heavy bassed tracks. Quote THE GRADUATE 10:18:2007 Link to comment Share on other sites More sharing options...
Guest MegaloManiac Posted December 8, 2006 Report Share Posted December 8, 2006 you probally have the pos & neg switched around somewhere Quote Link to comment Share on other sites More sharing options...
meade916 Posted December 8, 2006 Report Share Posted December 8, 2006 its not out of phase. Woofers run on A/C which is Alternating Current. If you have one sub by itself it doesnt matter which way you put the wires. Thats why it didnt make a difference when you switched the wires around. Phase starts mattering when you have 2 subs They should be in phase with EACHOTHER. If you have 2 subs and one is pushing while the other is pulling thats when they are "out of phase" and cancelling each other out. Then you switch the pos/neg on just one sub to get them back "into phase" ***** ****note: i didnt get into single subs with dual voicecoils or making sure your subs are in phase with your midbass speakers, it might matter then, but thats not the point i was making. Quote All SMD products + MORE available at my store here! https://wccaraudio.com/ Subscribe to My Youtube Channel! Over 1,000,000 subscribers strong! Turn on your notifications! http://www.youtube.com/meade916 Follow My Instagram! Daily live feeds from the shop, exclusive content way before it hits my Youtube channel...and little squares with photo's in them http://www.instagram.com/meade916 The Official SMD Facebook fan Page https://www.facebook.com/SteveMeadeDesigns/ Follow my Tweet (Twitter) http://www.Twitter.com/meade916 Link to comment Share on other sites More sharing options...
Mr. 973808 Posted December 9, 2006 Author Report Share Posted December 9, 2006 you probally have the pos & neg switched around somewhere I did that but it still has tthe same effect. So, what should I do? Quote THE GRADUATE 10:18:2007 Link to comment Share on other sites More sharing options...
Guest MegaloManiac Posted December 9, 2006 Report Share Posted December 9, 2006 test it on a differnt amp Quote Link to comment Share on other sites More sharing options...
Mr. 973808 Posted December 9, 2006 Author Report Share Posted December 9, 2006 its not out of phase. Woofers run on A/C which is Alternating Current. If you have one sub by itself it doesnt matter which way you put the wires. Thats why it didnt make a difference when you switched the wires around. Phase starts mattering when you have 2 subs They should be in phase with EACHOTHER. If you have 2 subs and one is pushing while the other is pulling thats when they are "out of phase" and cancelling each other out. Then you switch the pos/neg on just one sub to get them back "into phase" ***** ****note: i didnt get into single subs with dual voicecoils or making sure your subs are in phase with your midbass speakers, it might matter then, but thats not the point i was making. I thought that can go for the same for a single sub configuration. But thanks for the clarification. But you know whats funny. I go to school for Electronics and we just started talking about how amplifiers work with AC/DC current both combined. We also started talking about phase shift. So I thought that if the sub operates in a push/pull motion and now they're playin pull/push then they would be out of phase. Quote THE GRADUATE 10:18:2007 Link to comment Share on other sites More sharing options...
Mr. 973808 Posted December 9, 2006 Author Report Share Posted December 9, 2006 test it on a differnt amp Ok, even though I don't wanna result to using that power lackin RCA Bookshelf style stereo of mine but hell I have no other choice. Quote THE GRADUATE 10:18:2007 Link to comment Share on other sites More sharing options...
Guest MegaloManiac Posted December 9, 2006 Report Share Posted December 9, 2006 as long as ur gains arent hitting the roof you'll be fine :^ Quote Link to comment Share on other sites More sharing options...
Mr. 973808 Posted December 9, 2006 Author Report Share Posted December 9, 2006 as long as ur gains arent hitting the roof you'll be fine :^ You know what maybe thats why my sub is actin up. Bcuz on the bigger RCA receiver I have the bass knob up the way up. But it didn't cause my sub to act like the first time. But the bigger RCA doesn't have a gain control knob just regular bass and treble. Quote THE GRADUATE 10:18:2007 Link to comment Share on other sites More sharing options...
Guest MegaloManiac Posted December 9, 2006 Report Share Posted December 9, 2006 hmm? maybe somebody raised the gain up...kid? wife? could be bottoming out... Quote Link to comment Share on other sites More sharing options...
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