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Quick Line Converter Question


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stevdart 
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Joined: January 24, 2004
Location: Pennsylvania, United States
Posted: May 04, 2005 at 9:39 PM / IP Logged  

You want to be able to fade, especially in a truck cab.  You also want the front soundstage to be as high of quality as possible.  The best speakers should be in front, and lesser ones can take up the rear.  It is very common for a beginner to try to get as much as he can with starter gear and connect more speakers together than he should.  You might, too, and I did as well.  But when you do change it, as you will, to what I suggested...you will notice a great improvement in the quality of the overall sound.

And for the last question, no.  The deck will not produce more power into the rears because the fronts are disconnected.  It's still running two channels... the same two channels, to the rears.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
ajbringle 
Copper - Posts: 60
Copper spacespace
Joined: January 11, 2004
Location: United States
Posted: May 04, 2005 at 9:50 PM / IP Logged  

Stevedart...

Although I have several installs under my belt, I am no pro, (just an avid jack of all trades... master off none) thats why I come to places like this before I attempt something.  So as both you and another have pointed out 4 ohms up front is far better than 2 front and rear.   That is something I totally forgot about when I planed this.

Again thanx to you and anyone else that replied to my post. 

ajbringle 
Copper - Posts: 60
Copper spacespace
Joined: January 11, 2004
Location: United States
Posted: May 04, 2005 at 9:55 PM / IP Logged  

Customsubub...

Thanks to you too, I had obviously forgt my parallel Ohms law.

I will leave enough wire in the dash to switch it when I get a 4 Ch.

ajbringle 
Copper - Posts: 60
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Joined: January 11, 2004
Location: United States
Posted: May 05, 2005 at 6:02 PM / IP Logged  

Well got done with the install earlier today and have to say that I am pleased with the end result.

I did as suggested and ran the amp to the front channel and powered the rears off the HU.

The only complaint I have is the 100x2  is so strong that my gain is barely off the lowest setting maybe 1/32 off a turn.  If I put it to even a 1/4 it is so strong that I can't even hear the rear fill.  Although there is no distortion, like it would have been had I tied the rears into the front channel.

One more question for Stevdart (or anyone), if I were to have tied front and rear together @2 ohms, and my amp is 2 ohm stable,  would there have been that much distortion?

mobileworks 
Copper - Posts: 136
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Joined: December 16, 2004
Location: United States
Posted: May 05, 2005 at 6:35 PM / IP Logged  

The distortion from running the fronts and rears together would be very little.  All this talk of 2 ohms and 4 ohms has little to do with a speaker when its actually working (playing music)

You see when a speaker is producing music (moving in and out) the impedance of the speaker changes with the frequency that its trying to play.  In some cases the impedance can reach a couple of hundred ohms, so even if you tied them together and added another 4 ohm speaker to the same channel, your amp is usually capable of playing with no problems.  This typically true of interior speakers and although the same rules apply to any speaker (even woofers) I would be a little more causious when doing it with your subs.

Run those rears of that amp and get some real sound pumping in that cab.

Just my 2 cents.

stevdart 
Platinum - Posts: 5,816
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Joined: January 24, 2004
Location: Pennsylvania, United States
Posted: May 05, 2005 at 10:00 PM / IP Logged  

ajbringle wrote:
would there have been that much distortion?

I don't believe that I or anyone else used the word "distortion" in describing the difference of sound quality here.  Distortion would not have been an issue.  I know that when I first put 4 coaxials into my car and ran them off of two channels at 2 ohms I thought they sounded good.  But it always sounds better when you have installed new speakers and an amp. 

But when I upgraded to a separate amp for the sub and ran the 4 off of 4 channels, the higher quality of sound was immediately recognizable.  I attenuate the rears to such a level that the fronts are heard most even sitting in the rear seat.  In a truck, sound from behind should be almost nonexistant...there are no back seat passengers.

You're the captain.  Try it both ways.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
ajbringle 
Copper - Posts: 60
Copper spacespace
Joined: January 11, 2004
Location: United States
Posted: May 06, 2005 at 2:50 PM / IP Logged  

Well, for now I will leave it be since I just got done battoning everything together.  Someday soon I will be replacing the stock speakers anyway, then mabe I will cutt the harness apart and splice the F and R together just to see how it sounds.

Anyway the point is to have better sound than when you started the project, AND IT IS...  in my opinion a win win sit.

Thanks again Stevedart, and Mobileworks.

WzUpSon 
Member - Posts: 5
Member spacespace
Joined: April 20, 2005
Location: United States
Posted: May 07, 2005 at 7:02 PM / IP Logged  
ajbringle
What's up, Son!!!!
What's Up Son??
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