I second the subwoofer recommendation. N802's take some breathing room and serious amplification to really sound their best. Think 300 watt monoblocks. Unless your short term upgrade path is to replace the integrated with seperates I expect you might end up very dissatisfied with the N802's. A properly choosen subwoofer will allow you to retain the strengths of the N804's and add the well controlled bottom end that will complement your existing system.
