No bass in back here but fronts have normal full range sound.

I'm not sure where to go first. Dont really want to replace the HU, or Amp, or speakers without a little advice from the Pro's(you guys) first.I have bass in the front speakers but when I fade to rear it has no bass and very tinny. I understand the amp powers all four door speakers so assuming it is...

Any update on this? I am having similar problem. I have bass when faded to front. But when I fade to the rear there is no bass and very tinny sound.

solved