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Discussion Starter #1
Okay, I got the 4180c up and running this evening, but I found out something interesting. By setting the jumper to 2 channel and only using the front input, I have no left/right balance adjustment. This also pretty much renders the time-alignment in my deck irrelevant.

Does this make sense? Will getting the Y adapters and running all 4 inputs w/the jumper set to 4 channel solve this?

Frustradely yours,

-Ben
 

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sounds so france-never used the 4180c but using the y,s, splitting from one rca L to two into the front channels of the amp and doing the same for right into the rear would get you bridged stereo if thats what your looking to do
 

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ps by using the 2 ch jumper you are sending a stereo signal to the other 2 ,what i think you are looking for is bridged stereo using the front for the l and rear for the r?-basically mono for each l and r ,to test if you dont have y,s at the moment you can use just one rca for for the fron and the other for the rear-naturally youll have half the current availiable but it will simulate bridged stereo to check the amp, ;)
 

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im not sure you should still have stereo if you are using fronts for the left and rear for the right why would you not have stereo that makes no sense let me get my manual for the x604 and see if it says anyhting.
 

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why not get the y's and try running it in 4 channel mode and just using the front bridged to the left or right and the rear bridged to the other side you should have separtation this way.... according to the maunal they dont even tell me how to do it but this is what i would geuss if the 2 channel mode doesnt work right
 

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he is sending a stereo signal to each front and rear rca inputs ,he needs a mono l or r singnal to each front and rear
 

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well if he is using a paired rca and sending one (red) to the front and the other (black) to the rear this would be a mono signal to each side??? as you and i both said why not use y's then??
 

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he has to use y,s to ea front and rear or only one ch from both will amplify = half power with the same input current
 

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So if I understand correctly, the 2 inputs are "combined" and the two outputs are the same, hence the lack of balance and TA.

That would explain why the 4180C manual states "bridged mono : 2 x 180w @ 4ohms".

Now to figure out what would happen with 4 channels...

I have the same amp on the way so please keep me updated on your findings ;) .
 

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get the y's.

i've had to do the same thing eleventy billion times.
 

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Discussion Starter #11
Just got back home to reply to this. The y adapters fixed the problem. By y'ing the left off the deck to the front inputs on the amp, the right off the deck to the rear inputs, and then setting the jumper to 4 channel, problem solved.

Thanks to Dodgerblue for the suggestion, I appreciate it.

-Ben
 

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Discussion Starter #13
Well, I'm still working on getting the 7's in the doors, (getting ready to remove the bucking magnet in a couple of minutes, wish me luck.)

Initial impressions are that it is going to sound really nice, although I don't think I'm going to be able to run the Dayton tweets in the a-pillars, too damn bright in relation to the mid.

-Ben
 
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