Autruche Posted September 8, 2010 Report Share Posted September 8, 2010 (edited) Alright, now I know my fair share in the car audio world, but a couple things have been bothering me for a while, and I want to get them off of my chest... I'll probably get some shit for this but I haven't been able to really find anything on this... First off, when tuning an amp with a DMM or O-Scope, do you leave the speakers/subs hooked up or you you unhook them from the amp and insert the probes in the speaker outputs? The other question is, is it better to run two or more subs in one chamber of a box or to give them each their own chambers? Edited September 8, 2010 by lAutruche Quote Need Test Tones/Sine Waves? Click Here!My Saab 9000 build1993 Saab 9000 Aero 5spdPioneer - Zapco - Hifonics - Sundown Audio - O2 Audio - RE AudioJust Say No To Rear SpeakersJust Say No To CCA WireReal Men Drive StickHit me up on Facebook, if you want Link to comment Share on other sites More sharing options...
Hugh G. Rection Posted September 8, 2010 Report Share Posted September 8, 2010 is it better to run two or more subs in one chamber of a box or to give them each their own chambers? this is dependent on your setup. running mono, i always run a common chamber enclosure, i seem to always be able to get much more efficiency this way. when running in a stereo configuration, always run separate chambers. with stereo configuration, some music doesnt play the same from left channel to right channel. with common chamber in a stereo configuration, the left channel playing while the right channel isnt would cause the right channel subwoofer to act like a passive radiator, and the left channel subwoofer would unload. passive radiator in itself isnt bad if thats the type enclosure your going for, but a floppy sub in a ported box is never good. Quote Owner of BigAss Ports Link to comment Share on other sites More sharing options...
Autruche Posted September 9, 2010 Author Report Share Posted September 9, 2010 Anyone else want to chime in? Quote Need Test Tones/Sine Waves? Click Here!My Saab 9000 build1993 Saab 9000 Aero 5spdPioneer - Zapco - Hifonics - Sundown Audio - O2 Audio - RE AudioJust Say No To Rear SpeakersJust Say No To CCA WireReal Men Drive StickHit me up on Facebook, if you want Link to comment Share on other sites More sharing options...
55437Audio Posted September 9, 2010 Report Share Posted September 9, 2010 I agree with the above. Completely. I always use common for my subs but if you were to do speakers or L and R in the same box. Use separate chambers just like he said. Quote My First Build on SMD (Blow Through) 2004 Ford F-350 SD Lariat Pioneer 3200BT DVD Deck Infinity Reference Components not powered Bully Dog Gauge Cluster Pyro, Turbo, Trans SF3 SCT Tuner W/Customs If you can't Join em' Crush em' Link to comment Share on other sites More sharing options...
dugee81 Posted September 9, 2010 Report Share Posted September 9, 2010 When using a DMM, yes. Unhook the speakers at the terminal and put in the + & - of the multimeter in there and set the voltage accordingly. With an o scope, I believe (I don't know first hand) you have the speakers hooked up and the o scope uses the sound waves produced by the speaker to determine if the signal is clean or clipped. Quote 200a alt. by Excessive Amperage hc800 under hood & 2 Deka 9a31 in rear 1/0awg + big 3 SAZ 3000D HDC3 18" @ 2 ohm Link to comment Share on other sites More sharing options...
Skullz Posted September 9, 2010 Report Share Posted September 9, 2010 With sealed enclosures its best to have each sub in its own space so the other subs aren't getting influenced in anyway from the pressure of the others and for ported you want to use a common chamber so you can tune the box as a whole. Quote 01 Ford focus ZX3 Pioneer AVH-X491BHS PPI PC 4800.2 Morel Maximo 6.5" x2 Link to comment Share on other sites More sharing options...
skittlesRgood Posted September 9, 2010 Report Share Posted September 9, 2010 When using a DMM, yes. Unhook the speakers at the terminal and put in the + & - of the multimeter in there and set the voltage accordingly. With an o scope, I believe (I don't know first hand) you have the speakers hooked up and the o scope uses the sound waves produced by the speaker to determine if the signal is clean or clipped. correct. 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...
Autruche Posted September 9, 2010 Author Report Share Posted September 9, 2010 When using a DMM, yes. Unhook the speakers at the terminal and put in the + & - of the multimeter in there and set the voltage accordingly. With an o scope, I believe (I don't know first hand) you have the speakers hooked up and the o scope uses the sound waves produced by the speaker to determine if the signal is clean or clipped. Wrong, an oscilloscope reads your electricity wavelengths, you use it the same way you use a DMM, when I first heard of them I thought the same thing though. Quote Need Test Tones/Sine Waves? Click Here!My Saab 9000 build1993 Saab 9000 Aero 5spdPioneer - Zapco - Hifonics - Sundown Audio - O2 Audio - RE AudioJust Say No To Rear SpeakersJust Say No To CCA WireReal Men Drive StickHit me up on Facebook, if you want Link to comment Share on other sites More sharing options...
skittlesRgood Posted September 10, 2010 Report Share Posted September 10, 2010 Wrong, an oscilloscope reads your electricity wavelengths, you use it the same way you use a DMM, when I first heard of them I thought the same thing though. the amp needs to be under load when you use an oscope. 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...
Autruche Posted September 10, 2010 Author Report Share Posted September 10, 2010 Alright, thanks everyone for getting back to me. that answers all of the questions that have been burning me. Quote Need Test Tones/Sine Waves? Click Here!My Saab 9000 build1993 Saab 9000 Aero 5spdPioneer - Zapco - Hifonics - Sundown Audio - O2 Audio - RE AudioJust Say No To Rear SpeakersJust Say No To CCA WireReal Men Drive StickHit me up on Facebook, if you want Link to comment Share on other sites More sharing options...
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