Why, you don't think that having 2 crossover slopes isn't redundant? That why I was thinking of running active because who knows what kind of funky slopes really are happening.

 

The biggest problem with the DSP is that its has very little flexabilty when it comes to the crossover points. But it has 3 different slopes. I figure that as long as I am with in the range of the crossovers points I would be ok.

Another reson why I am passive as of now is that the MB Quart crossovers have a tweet protection(light that glows to absorbs extra current). I have the amp all the way down and sometimes that light is so bright I could light up a park at night.

 

^ The light just burns off extra power so the tweet isn't overpowered. Once enough voltage is seen on the speaker wire, the bulb starts to light. Pretty much limiting the tweeter to a certain point on the wattage it receives. But yeah I agree that it's getting too much power and you should look at where your gains are at.

I've had my own light bulb tweeter protection in two of my vehicles. Really simple and cheap to do and works great at preventing tweeters from popping at higher volumes.

 

Why, you don't think that having 2 crossover slopes isn't redundant? That why I was thinking of running active because who knows what kind of funky slopes really are happening. </font>[/QUOTE]Redundancy is when two or more devices provide identical services. Crossovers can't be redundant because of signal path, and the fact that they simply filter whatever comes in regardless of what it is.

Another way to go is that you can always just turn the XDP-4000 crossovers off.

Also, I think you're misusing the term "bridged". Loading the amps down to 2 ohm is not bridging them. Bridging is summing the output of two channels into one. Therefore... if the amp was bridged to your front stage currently you'd only have 1 channel of amplification, and you'd be running your front stage in 2 ohm mono, which makes no sense.

Here is what I would do in terms of signal chain.

C90 to XDP-4000
XDP-4000 high pass (3500 Hz approx) to ZPA 0.5 #1 running tweets in 4 ohm stereo
XDP-4000 band pass (60 to 3500 Hz approx)to ZPA 0.5 #2 running mids in 4 ohm stereo
XDP-4000 low pass (60 Hz) to new sub amp.

By going fully active you could have full control over all slopes and points from the drivers seat.

My only concern is that on the PG website they seem to stress that you need 8v of input with the ZPA series, which the XDP-4000 will just not provide. Maybe someone more familiar with the amps can comment.

 

Its exactly like SUX 2BU explained it....I had my gains set with an osciliscope to jsut before clipping. The amps don't barely have any of the gains turned up....the only reason I turned them up a bit was to make it a bit more powerful and I would listen for the clipping. The light turns only if I am really cranking it...that way I know I am running them at full potential.

 

Wouldn't you say it redundant to have 2 crossover slopes that are very similar?
You can't simply turn off the crossovers slopes on the 4000x.
Sorry man your right...what the hell was I typing. They are biwired: I have 2 wires off each L and R channel...one for the mid and one for the tweet. They are indeed 4 ohms.
Thats exactly the way I was going to set it up if I were going to go active. Thats the way the original Sony sytem was setup except they has a 3 way setup up front.
Yes, I can comment...I have line drivers to each amp so I do have 8V and thats why I had the gains set with an oscilliscope.