Tough to say whether your system can do this or not without knowing lots of other things - most importantly, how loud you're playing, etc.  Lots of factors go into whether your system can duplicate this or not.  If you're looking to see if your system can perform similarly, try:
- position the speakers as much to the side as possible to minimize how much speaker output is hitting your mics
- angle the speakers so they're not pointing directly into your mics
- not sure what type of mics you're using, however some mics are far better at handling feedback than others - something with high gain before feedback and low non-axial pickup would be better I'd think.
- play around a bit with your preamp gain on the mic.  Obviously the hotter the pre amp gain is set, the greater the chance for feedback.