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head unit vm9311, amp?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=93921
Printed Date: May 16, 2024 at 10:12 PM


Topic: head unit vm9311, amp?

Posted By: audio402
Subject: head unit vm9311, amp?
Date Posted: May 15, 2007 at 12:51 AM

I have a 400 profile amp hooked up 2 channel via rca cables through front right and left...is this best way?I would have more control of speakers indiviuallly but I thoght this would be less power???So..now I have nothing hooked to speaker wires from head unit...Is it true you cannot use these if you use rca cables??I have some sound effect lighting I would like to hook there[speaker wires]



Replies:

Posted By: sedate
Date Posted: May 15, 2007 at 9:30 AM

audio402 wrote:

have a 400 profile amp hooked up 2 channel via rca cables through front right and left...is this best way

Sounds okay to me.

audio402 wrote:

Is it true you cannot use these if you use rca cables??

The output from your head units' onboard amplifier will not be affected if you are using RCA cables.



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"I'm finished!" - Daniel Plainview




Posted By: sqsq
Date Posted: May 15, 2007 at 2:04 PM

You're question isn't totally clear, but it sounds like you're running 4 speakers off of a two channel amp.  This isn't bad necessarily, but it isn't ideal either.  First, as you already mentioned, you lose fader control.  Even if this doesn't concern you, you still lose sound quality somewhat because, more than likely, your amp will be running at 2 ohms.  Although this will allow for more power, amplifiers have a higher distortion rating when running at 2 versus 4 ohms.  On a sub, that increased distortion would likely be unnoticable, but it probably is noticable on door speakers sinces they're much more detailed than a sub and thus more likely to be negatively impacted by an unclean signal.  Your head unit will still output through the speaker wire on the deck harness, even if you use RCA's





Posted By: audio402
Date Posted: May 16, 2007 at 12:57 AM
Thanks for your replies....Yes I am running 51/4 comps and 2way 6/9's in 2 channel configurement...Amp seems stable,would it be better to run comp's off amp as front channel,6/9's off inboard amp of headunit as rear channel????...when I get good at this I may add bass





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