Quick question, if I use my D3 to power the rear speakers and I use the REAR RCA OUTPUT to an amp to power another set of speakers (i.e. Mids), will the D3 see the rear as left while the RCA (Mids) as right?

My current setup is something like that, I have the tweeters in FRONT RCA, mids in REAR RCA, and rear speakers being powered by HU. Tweets and mids each powered by an amp. If I set fading all the way to the left, the mids and left rear will play and right rear will not. If I set fading all the way to the right, only the rear right speakers will play. Is there a way I can fix this or is this how the D3 is?

Left and right should have no bearing on that setup. And yes, it will work. Front preouts for front tweeters, rear preouts for front midranges, and rear speaker outputs for rear speakers.

Adjusting the balance left and right will only adjust the balance left and right, unless you have something wired incorrectly.

Adjusting the fader all the way to the front will cause ONLY the tweeters to play, and adjusting the fader all the way to the rear will cause ONLY the front midranges and the rear speakers to play.

But my question is, why would you even want to set it up this way? It seems like it's overkill, as well as makes balincing the system out a horrible nightmare. Use a single amp running off the front RCA outputs, and use a crossover to split the signal to the tweeters and midranges, just like a set of component speakers.

Keep in mind, voice guidance and bluetooth are played out the front outputs only, and just mutes the rear.

Well I got a pretty good deal on both amps so....yea....

Heres a drawing of my current connection:

Now heres the problem:

On AMP 2,

If I have RCAs in CH 1+2 and 3+4 to amp, CH 1+2 will not play. However,

If I have RCAs in CH 1+3 and 2+4 to amp, both side will play, but the fading problem occurs (as in my first post). I test the amp and rcas with my MP3 player and it works fine, but when hooked up to the Hu, the problem occurs.

Like I said... tat setup is just wrong... I don't really know how else to explain it. The biggest issue is the splitting of the rear RCA's and then bridging them back together after the amp. The splitting cuts the signal in half, then the brigding joins it back together. It would be the same as just using a single channel.

What speakers are being used?

Rear speakers?

Midrange speakers?

Tweeters?

Subwoofer? Does the sub have dual or single voice coil(s)?

Here's what I would do in your case, give what I know at this point.

Amplifier 1 will run both the front midranges and the front tweeters. Run the front RCA preouts to the amp's inputs #1 and #2. Use a short pair of RCA cables to run the amp's channel 1 and 2 lineouts to the same amp's inputs #3 and #4. The midranges will run off that amp's output channel's 1 and 2, and the tweeters will run off that amp's output channels 3 and 4. This way, ALL the front speakers will run off the D3's front RCA outputs.

Amplifier 2 will run either just the sub or the sub and rear speakers.

If the sub is a dual voice coil model, you can bridge the second amp to two channels and use each channel for a voice coil on the sub, and use the RCA "Y" splitters to run the D3's subwoofer RCA output to all 4 of the amp's inputs. The rear speakers would be run off the D3's rear speaker output for this scenario.

If the sub is a single voice coil model, you can use channel 1 and 2 for the sub (using the D3's subwoofer RCA outputs), and channel 3 and 4 for the rear speakers (using the D3's rear speaker RCA outputs).

Well I have a DIY setup. I moved from a fully active setup (DEH-860MP Hu) to a semi active run currently using the amp's xover. Tweets are 6ohms and Mids are 8ohms, no sub yet (just reference for future) Rears are some cheap pioneer coax I got for free. I had my tweets and mids hooked up to a previous amp 75x4 @ 4ohms but the amp was getting old. Now I moved to a new amp 100x4@4 or 320x2@4 when bridged. So I wanted to run my 8ohm mids bridged to one of the amps to push it since those drivers have low sensitivity and loves power...

Anyways, I've read that I need the Y-splitter when bridging it to 2 CH. From your drawing why does CH 3+4 IN go to 1+2 OUT on AMP 1?

From your drawing why does CH 3+4 IN go to 1+2 OUT on AMP 1?

So you don't have to run another splitter. All you do is run a short cable from the 1/2 output to supply signal to 3/4.

Here is my suggestion:

Is there any way you can just sell off the stuff you have and get the right stuff for thr job? Throw those 8ohm mids and your tweeters on ebay and get a good set of componants that come with a crossover. Then you can use the new componants as your fronts (ch 1/2), the cheap pioneer coax as your rear (ch 3/4) all off of amp #1.

Save the other amp for when you get a decent sub and use it there.

This way you aren't creating any extra heat with using the internal amp of the head unit and you don;t have to worry about crazy fading issues and 8ohm mids in a car install.

^ that's what I would do if I were in your situation... sell all that stuff and buy some matching components, run all the stereo speakers off of 1 amp (front component speakers and rear full range speakers), and run a DVC sub off the other amp.

hmmm ok, I will start looking at component sets. Thanks for the advice and help guys.