Pod xt through an acoustic amp problem

[vancity4life_44]

So i just got a fender acoustasonic from long and mcquade a couple of days ago, since buddy at the store told me an acoustic amp would be ideal to run a pod through as a practice amp since they have no "personality". anyways i've just started trying it out even though the sound is good the feedback is insane on some of my patches, particularly the high gain ones. i would like to rectify this problem without sacrificing sound quality and allowing for it to do as i intended, to let the pod xt shine through a blank amp. what can i do to get rid of all this feedback without ruining the sound i already have set up on the pod? the amp only has a volume knob then bass middle and high frequency knobs.

[PremiumJones]

How are you plugging into the amp? Going into the front panel negates the purposes of using a full range amp/speakers, since you are instantly coloring the tone with the acoustic-voiced preamp. 

 

Going into the FX return is the way to get a pure signal to the power amp(s). 

 

Since you are having feedback issues, my guess would be that you are in fact plugging into the front end, and the preamp that is expecting an acoustic guitar is pumping tons of high end gain for a signal that isnt there through the speakers, creating a perfect opportunity for feedback.