360wayvin Posted October 25, 2009 Report Share Posted October 25, 2009 i have an pioneer 5900. I have an amp for my subs and an amp running my front speakers. Both amps have crossovers on them but the headunit does too. ?My question is does the headunit crossover settings cancel out the amps crossover settings? Link to comment Share on other sites More sharing options...
white4d96 Posted October 25, 2009 Report Share Posted October 25, 2009 i have an pioneer 5900. I have an amp for my subs and an amp running my front speakers. Both amps have crossovers on them but the headunit does too. ?My question is does the headunit crossover settings cancel out the amps crossover settings? No if both are activated both will work. I had a similar setup with my deck and old mid+high amp and I just ran both as a failsafe. Too many projects, too little time... Link to comment Share on other sites More sharing options...
brewer_brewer Posted October 25, 2009 Report Share Posted October 25, 2009 turn your headunits eq off and put it on flat and use the amps controls. REFS http://www.caraudioclassifieds.org/forum/itrader.php?u=2026 http://www.stevemeadedesigns.com/board/topic/44535-official-brewer-brewer-feedback/page__p__625998__hl__brewer__fromsearch__1entry625998 "you're not allowing natural selection to work, you're like the guy that invented the seatbelt" Link to comment Share on other sites More sharing options...
R_Mac_1 Posted October 25, 2009 Report Share Posted October 25, 2009 I was curious about something similar to this... If your HU has like a 12 db/octave crossover and your amp has like an 18, would engaging both at, say, 80 hz make a 30db/octave crossover, or would it not work like that? I only use my HU crossovers, because they're easier to change. So, its better to turn them off and use the ones on my amps? 2002 Pontiac Bonneville SSEi Pioneer DEH-P6000UB Alpine SPX-17REF 6.5" components (active) Sundown SAX-50.4 Sundown z15 (3 cubes @ 35 hz) Sundown SAX-1200D 2006 Buick Rainier CXL AWD V8 Stock Bose system 12" Alpine Type E in aeroported box Profile AP1000M Link to comment Share on other sites More sharing options...
Nightshade Posted October 25, 2009 Report Share Posted October 25, 2009 You can use either crossover, but if you use them both you stack them and it becomes more effective. I would reccomend that and is what I do in my car at least for low pass. The deck doesn't have a good enough nor high enough high pass crossover to use in my case so I use my amp for high pass. 2013 VW Jetta GLI 2.0 Turbo 1 Sundown Audio SCV2000 1 Sundown Audio X15 V2 1 XS Power D3100 Audio Control LC6i Stock Deck 146.4 sealed on the dash at 37hz 2001 Focus ZX3: RETIRED Team Sundown Audio, Team XS Power, 2 time NSPL Car 3601-Up Champion, 2 time NSPL Car Hardcore ChampionHighest NSPL Scores to date:154.3db on the dash sealed at 46hz, 156.2db in the kick at 46hz155.2db unofficial on dash at 43hz Link to comment Share on other sites More sharing options...
jbondox Posted October 25, 2009 Report Share Posted October 25, 2009 having both on will not effect anything and no you will not have a 30 degree slope However with that being said, let me state it like this, messing with the crossover does also change the time via a phase shift. you will notice it more on the lower end than the highs, I always check the phasing when I do an install, sometimes with the woofer out of phase it reinforces the mid bass a bit better. you really have to listen to it and spend some time. Personally I bypass all headunit controls and leave them for the processor or the amp... it is just my preference and using both does not make it wrong SMD SuperSeller VerifiedJbondoXJames Shields Link to comment Share on other sites More sharing options...
Nightshade Posted October 26, 2009 Report Share Posted October 26, 2009 having both on will not effect anything and no you will not have a 30 degree slopeHowever with that being said, let me state it like this, messing with the crossover does also change the time via a phase shift. you will notice it more on the lower end than the highs, I always check the phasing when I do an install, sometimes with the woofer out of phase it reinforces the mid bass a bit better. you really have to listen to it and spend some time. Personally I bypass all headunit controls and leave them for the processor or the amp... it is just my preference and using both does not make it wrong If your responding to my comment I never said that it would give you a 30 degree slope. By stacking I mean that you will have two crossovers working to keep the freq's that are unwanted away from that particular speaker. It is more effective than using a single crossover alone. Kind of like extra protection. I never said that it would increase the rolloff rate at all. 2013 VW Jetta GLI 2.0 Turbo 1 Sundown Audio SCV2000 1 Sundown Audio X15 V2 1 XS Power D3100 Audio Control LC6i Stock Deck 146.4 sealed on the dash at 37hz 2001 Focus ZX3: RETIRED Team Sundown Audio, Team XS Power, 2 time NSPL Car 3601-Up Champion, 2 time NSPL Car Hardcore ChampionHighest NSPL Scores to date:154.3db on the dash sealed at 46hz, 156.2db in the kick at 46hz155.2db unofficial on dash at 43hz Link to comment Share on other sites More sharing options...
jbondox Posted October 27, 2009 Report Share Posted October 27, 2009 I would be commenting to the post prior to yours. SMD SuperSeller VerifiedJbondoXJames Shields Link to comment Share on other sites More sharing options...
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