MMG sub hookup....

preamp to via rca subwoofer, then rca from sub output (crossed over) into your amp.

@batman So....the rca s currently from preamp to amp that is in now....   

Run from from pre to in of sub
And out from sub with rca s to amp input.

Because amp of course has only one pre in left and right..

Confirm?
Thx...

@batman
My sub only has line ins

And speaker input
And speaker output.

@batmanI could split pre and run to sub..
And a run to amp then...

If you want to high pass to the speakers you can use this HSU high pass filter. If you want to run the speakers full range you will need Y adapters from preamp into amp and into the subwoofer!
I use this to high pass to main speakers!
You will need 2 pairs of Y adapters to do any of these choices!

http://www.hsuresearch.com/products/high-pass-filter.html

@yogiboy 




Thx.   Why do. You prefer high pass?
Instead of full range..

I assume using speaker speaker out sub uses high pass frim sub no?

I’ve tried it both ways and I prefer using high pass to the speakers. Some prefer running full range. It all depends on the speakers that you are using. What sub are you using? I doubt that it has a high pass filter ! BTW, if you decide to go with the line level option these y adapters are what I use!

https://www.audioadvisor.com/prodinfo.asp?number=AQM22FHRD

@yogiboy 




Maggie...MMG's
Polk SW10 subs..(2)

The speaker out on that sub does not have high pass filter! Just run the speakers full range and see how you like it!

@yogiboy 



Ok..thats the current hookup...I prefer the Maggies to full range.  Just a question?
If they are not full range...what end of the speakers are we giving up?

You are not giving up anything. All you have to do is adjust the low pass filter to what sounds right to you. The Maggies go down to 40HZ so just fill in the bottom end!