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#16
10-18-2005, 02:26 PM
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Re: Finally getting around to the sound system
ok, i kinda understand
but say with your example sub ratings, you ran 2 DVC subs on 2 channels, 4ohms each, you would get 200w total(100x2) now if you ran the same amp bridged with one channel and the same 2 DVC subs in a series/parralel configuration, so theres still a 4ohm load on the amp, you would get 400w total right? did you mean if you just ran the subs in series to have an 8ohm impedence so you still had 200w total? i didnt really understand your last post, sorry 
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#17
10-18-2005, 04:11 PM
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Re: Finally getting around to the sound system
100x2@4ohm
200x2@2ohm 400x2@1ohm 200x1@8ohm 400x1@4ohm 800x1@2ohm if you have a single D4 driver you could wire each coil at 4ohm to get 200w total. the amp drives it as two individual 4ohm loads. if you wire the coils in parallel to yeild a 2ohm load and bridge the amp you will get 800w, this is because you are cutting the load in half and combining the power of each chanel into one. the last post was explaining ow an amp could have 300w total in stereo and 400w in mono with the same load. the amp should have ratings like this 150x2@4ohm 200x2@2ohm 300x1@8ohm 400x1@4ohm the power does not double when the load is cut in half because the power supply of the amp cannot supply the needed current  however the circutry is stable at 2ohm stereo they just dont list it, under certian circumstances amps are more stable bridged than stereo but rarely...but if it where its minimum loads could be the same for mono and stereo.
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#18
10-18-2005, 04:30 PM
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Re: Finally getting around to the sound system
ahhhh that makes so much sense. lol i dunno why i didnt get that before.
so how can i tell if my amp is 2ohm stable though, because i cant find the stats online at all(mtx thunder 420 i think)
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#19
10-18-2005, 10:15 PM
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The link that MannyB gave is EXTREMELY helpful. i've been reading it and its helped a lot.
here's a link to one of the chapters that would re-enforce what Fryman's trying to say: http://www.bcae1.com/bridging.htm
__________________
The most beautiful thing we can experience is the mysterious... He to whom this emotion is a stranger, who can no longer pause to wonder and stand to rapt in awe, is as good as dead: his eyes are closed.
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#20
10-18-2005, 10:20 PM
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Re: Re: Finally getting around to the sound system
Quote:
(thnx mannyb for recomending that link a while back, its killer)
__________________
The most beautiful thing we can experience is the mysterious... He to whom this emotion is a stranger, who can no longer pause to wonder and stand to rapt in awe, is as good as dead: his eyes are closed.
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#21
10-19-2005, 08:52 AM
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Re: Finally getting around to the sound system
yea that link helped alot, thanks.
so if im looking to buy two subs for that same 2channel mtx amp(2alpine type-r's), would it be better to run the two 4ohm+4ohm DVC drivers in stereo in parrallel with a 2ohm stereo load, or run them bridged with a series/parrallel connection for a 4ohm mono load? or are they exactly the same? would the amp be more stable with a 2ohm stereo load?
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#22
10-19-2005, 10:48 AM
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Re: Re: Finally getting around to the sound system
Quote:
well if ur saying u've got the 420w mtx 421d, its a mono amp, not a 2-channel. ur subs can handle 500w rms. ur amp gives 210w rms to a 4 ohm load, and 420 to a 2 ohm load. this is where i stop being of any use, cuz i get confused when it comes mono amps. I'm guessing you want to wire the subs so that the amp sees a 2 ohm load. now, 2 ohm stereo loads are safe, thats what amps are stable at when they say 2 ohm stable. but does a mono amp even have stereo wiring? no, right? so that's when i get confused. a mono amp that says 2 ohm stable, is it stable at 2 ohm mono? EDIT: (i.e. wiring 2 4ohm subs in parallel?)
__________________
The most beautiful thing we can experience is the mysterious... He to whom this emotion is a stranger, who can no longer pause to wonder and stand to rapt in awe, is as good as dead: his eyes are closed.
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#23
10-19-2005, 12:29 PM
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Re: Finally getting around to the sound system
no i have the the mtx thunder420 amp, i dont know how many watts it puts out or anything, i havent been able to find any info on it at all. but yea an amp thats 2 ohm stereo stable is not 2ohm mono stable. the two subs i had before were 300w rms each and they powered them pretty well, so its somewhere around there for each channel i think.
but i still dontknow if i should wire them in stereo or mono bridged with a 4ohm amp load
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#24
10-19-2005, 08:29 PM
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Re: Re: Finally getting around to the sound system
Quote:
i don't think mtx had a 420 model, only the 421 D-class mono, rated at 420watts
__________________
The most beautiful thing we can experience is the mysterious... He to whom this emotion is a stranger, who can no longer pause to wonder and stand to rapt in awe, is as good as dead: his eyes are closed.
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#25
10-19-2005, 08:37 PM
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Re: Finally getting around to the sound system
hm, i could of sworn it says mtx thunder 420 on it, ill check next time, its really bothering me that i dont know what amp i have lol.
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