is it possible to run 2ohms to one set of speakers and 4ohms to the other set? My kappas let me go 2ohms while my references in the back only let me do 4ohms.. =[.


thanks for answers in advance

 

on the same amp, no. It will off balance the output signal which for some reason will damage the amp over time.

I beleive this is only true for L&R channels, the front and rears are totally separate circuits so you can probably run 2ohm stereo on the front two and 4ohm briged on the rear two

 

wait, what? I'm planning on running one channel up to the front two and the other channel to the rear two..

i guess i'll just run four ohms on all of them, luckily the amp has 200x2 on 4ohms anyways so i wont be falling short on power or anything.

 

He's only running a 2 channel amp.



Which brings me to my next question....why not get a 4 channel? Or better yet, why do you see the need to amp your rears?

 

4ch because i dont need the extra two channels. i had a discussion with toby about it.

I'm amping them all so i can set their different crossovers.

 

What we discussed was putting front and rear speakers together to two channels...i.e., you still have left and right, but no fade.

Now, if I'm reading this right, you have 4 ohm front speakers, and 2 ohm rears. This means the front right speaker is 4 ohm the front left speaker is 4 ohm, the rear right speaker is 2 ohm, and the rear left speaker is 2 ohm...this seems over simplistic, but I want to make sure we are all on the same page.

Now, you want to hook front right and rear right to the right channel on your two channel amp. If you wire in parallel, this may not work, as it would give you 1 1/3 ohms, which your amp is probably not stable to. You can go series, but that would be 6 ohms.

I really don't understand how your speakers will 'let you go 2 ohms'...speakers don't let you go with an impedance, they represent an impedance to your amp. You also don't run 4 ohms or 2 ohms to your speakers, you wire them to show 4 ohms or 2 ohms to your amps. I think your terminology is off.

If you actually can chose between 4 ohms and 2 ohms (?), chose 4, run them in parallel with the other 4 ohm speakers, and get two ohms per channel.

I still think something is missing here...

Toby

 

I don't see how this is possible. Impedance varies with frequency, so the actual load seen by the amp would vary as well. Since we're dealing with a stereo signal, the frequencies seen by the left and right will be different often, if not always. As long as neither channel drops below the minimum of the amp, there should not be a problem.

I've often used only one channel of a stereo amp, to drive a center channel for example, leaving the other open, with no ill effect.

I've been wrong before, however, so any data you have supporting the 'don't do it' theory you presented will be gladly analyzed.

Toby

 

ok, fuck. i goofed, sorry. I remember one day i was re-checking specs of the speaker and it said that it was 4ohms and i guess i thought that it was capable of going to 2ohms. In reality its a 2ohm speaker. so my fronts are 2ohms and my rear speakers are 4ohms.. which kinda leads me to the question how my speakers arent fked up yet...

anyways, ok now given that my FRONT two speakers are 2 ohms and my REAR two speakers are 4 ohms.... what do i do to wire them to this 2 channel amp that supports 2ohms and 4ohms (and yes my terminology is most likely not correct because unfortunately i dont know much about wiring things and every day i learn more here).

Also, how can i get it so that way i can control my amp crossovers for the front two speakers to play highs and the rears to play mid highs? if that makes any sense.?

or am i screwed in the fact that the 2 channels means just right and left? i cant make it work front and back?

God this is so confusing.

 

You could hook the amp up front and rear, vs. right and left, but I wouldn't do that. I'm sure that there is a better plan, but I need more info.

First, exactly what are the speakers in question...model numbers would be great, but size and design at a minimum (6 1/2 coax, 5 1/1 coax...?)

Next, I need to understand what you are trying to do when you say 'highs up front, and mid highs in back'. From past posts, I thought your only issue was that bass came through them, and made them sound distorted. This is a much easier problem to solve.

Toby

 

My only real issue IS bass coming from front speakers but if i can leave the back ones alone or tune them a bit too that'd be awesome, but for the main part i want most bass OUT of the fronts

here are exacts

Front Speakers - 5/7 6/8
Infinity Kappa 682.7cf


Rear Speakers - 6/9
Infinity Reference 9613i

both Coax's