question about ohms.. very simple question

[STC1709 10+ year member]

Ok i have a set of edi6500s componet set. I have one in my drivers side door and one in my passenger side door. According to there website it says that the speakers have a final impendence of 4 ohms.

Now heres the question.... i plan to run those speakers on my amp which will produce 275w x 4ohms bridged.. soooo i plan to run the speakers in parralell i think thats it... this is how i would do this... id run the + and - from the drivers side to the back and the + and - from the passenger side to the back, then i would connect both +'s together and both -'s together so the end result would be one + wire and one - wire going to the amp so that it can be bridged, when its conencted to the amp.

When i wire it this way are the speakers still running at 4 ohms each?

the reason for doing this is because my amp only does 70w x 4 ohms per channel so by bridging it i can get 275w which in turn would give 137w to each speaker.

thanks in advance

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[young_gun 10+ year member]

No, you dont want to bridge your amp at all. That gives you a mono channel, you want the left side wired to the left side and the right to the right. If not you wont have a 'left' or 'right' channel. it will just be the one bridged channel. just run the 70w in stereo man.

 

[STC1709 10+ year member]

i know that i dont care if its mono channel, i dont care if i lose the stereo it sounds better this way b/c it has more power, those speakers are meant to get alot of power... all i want to know is if the ohms is going to be the same, according to my question

edit: sorry if i sound up tight didnt mean for it to come out that way

 

[azbass 5,000+ posts]

just run in stereo. you want stereo for your speakers not bridged mono.

70 watts is plenty

 

[young_gun 10+ year member]

Well if your hard head set on mono, to answer your question no. You can only get an 8ohm or 2 ohm wiring from two 4ohm loads. Parallel will drop it to 2 ohms, and series will jump it to 8. Just run stereo. I have a set of the 6500s on ~90-100w and they sound great

 

[squeak9798 5,000+ posts]

When i wire it this way are the speakers still running at 4 ohms each?

You won't change the nominal impedance of the speakers themselves. They will still be 4ohms each.

What you will change is what load the amplifier will see; Wiring them in parallel will result in a 2ohm load which most amplifiers are not capable of handling very well when bridged.

And as was mentioned; You do not want to lose stereo sound. You will be fine just running the amplifier in regular stereo mode. Don't confuse slightly louder with "sounding better".....because that isn't the case.

 

[blackbonnie 5,000+ posts]

so just dont bridge your amp

 

[STC1709 10+ year member]

ok so you guys are telling me to go back to stereo the way i had it... well heres the thing.. when i had it in stereo it was gettin 70w and i had the gain at 1/4 of the way up.. when i changed it to mono... i left all the settings the same and it sounded 10x more insane...

heres the question... if i go back to stereo, is it ok to turn the gain up more.. i dont like fiddling with that thing cuz i dont wanna blow shit.. but in this case.. is it safe to turn the gain up to at least 1/2, if i go back to stereo?

 

[AltarCrystal 10+ year member]

As other have said, man, more power does not nesscacarly mean better sounding.

I mean, I'm running Alpine Type-S coaxal's in my doors, and I'm putting barely more than 50W through them right now, and even at that they sound better then if I'm puttinf, say, 150W on them. Given, they SUGGEST 50W RMS, but still, just because you're putting more power through them, and they'll be louder, doesn't mean that they'll nesscicarly sound better.

 

[AltarCrystal 10+ year member]

ok so you guys are telling me to go back to stereo the way i had it... well heres the thing.. when i had it in stereo it was gettin 70w and i had the gain at 1/4 of the way up.. when i changed it to mono... i left all the settings the same and it sounded 10x more insane...
heres the question... if i go back to stereo, is it ok to turn the gain up more.. i dont like fiddling with that thing cuz i dont wanna blow shit.. but in this case.. is it safe to turn the gain up to at least 1/2, if i go back to stereo?

Do it a bit at a time, and take a voltage meter to it each time. And of course use your ears. There's someone here who has a guide on how to set gains properly, I never looked through it, but lemme see if I can get the link.

 

[STC1709 10+ year member]

alright thanks, but the problem is i dont have a voltage meter

 

[AltarCrystal 10+ year member]

http://z13.invisionfree.com/The_Dumbster/index.php?showtopic=41

It's the guide DajaWiz has in his sig, so don't thank me for it. Like I said, I never read through it, I had someone tell me what to do, but this should help.

 

[shortyg83 10+ year member]

You can turn it to 1/2 but with out a dmm I wouldn't go any higher then that it is hard to set gain by ear on speakers. But at half gain normal amps would not yet be clipping.

 

[STC1709 10+ year member]

so i wired the speakers back up to stereo 70w a peice, now im using a multimeter from radio shack the 19.99 one to measure the voltage so i can set my gains properly... this thing is pissing me off and not working right... the stupid meter has ACV (which is AC Voltage) theres only 2 options 200v and 500v so i put it on 200v and it strats out at 00.2, at tihs point i have the tone playing in the cd changer and i have all the settings at 0, i have the volume at 3/4 of the way up and when i move the gain it barely goes up.. when i put the gain at full the stupid meter reads 06.0 im like wtf.... 6 volts.. shit is pissing me off wtf am i doing wrong

 

[STC1709 10+ year member]

someone help me please