having issues with MBQuart RAA4200 amp and Basslink sub... ADVICE?!

Hey everyone,

I'm having some issues getting decent level out of my sub.

SETUP:

Pioneer Head Unit
(2) Infinity Kappa coaxial speakers
(2) MBQuart Reference coaxial speakers
MBQuart RAA4200 4-ch Amp
Infinity Basslink Subwoofer w/ built-in amp

Head unit itself is powering the woofers of each of the 4 speakers. Also it has two pairs of line outputs that are running to the amp which is powering the 4 tweeters. The amp also has a line level output which is running to the Basslink.


PROBLEM:

the sub is at a decent level only when the fade setting on the head unit is on full front or full back. the closer you get to balanced the less you get from the sub. When the fade setting is equal front/back, the subwoofer is too low to really be useable and I like the equal fade balance in the mids/tweets so I don't want to fade it all the way one direction just to be able to use the sub.

I feel like there is something easy that I'm just missing. There is a 2/4-ch mode on the amp, but toggling that made no difference.

Any feedback is appreciated. Thanks!

Jeff

 

I'm not sure the age of the head unit but it is older, probably 2006/7.

and I apologize. You are right. They are component speakers, not coaxial. Got the terms confused. Each speaker came with a separate crossover. So in my setup, the crossovers were removed from the signal chain since the woofers and tweeters are run separately. I did it this way so I could run the tweeters through a higher quality amp than the head unit. I thought it would be more valuable to use the higher fidelity amp on the high end. And frankly, outside of the sub issue, I think it makes a pretty noticeable difference to my ears. I really like being able to control the high end with the amp's gain instead of the EQ settings on the head unit.

So here is the wiring setup:

HEAD UNIT - Front & Rear speaker level outputs go to mid-woofers in component speakers and (2) sets of RCAs go to the 4-ch amp.

AMP - 4 outputs go to tweeters in component speakers and line level RCA output (thru?) goes to the RCA inputs on the Basslink which has both RCA and speaker level inputs.


Hopefully that covers everything. Would it work just to parallel the front and back tweeters on each side to a single channel on the amp so I free up two channels and then use those to run to the sub? Or do that same thing, but instead of running the speaker level outs from the amp, I could run the 2nd set of RCAs from the head unit straight to the amp?