I had the same problem and there is only one proper solution, but like me it may require you to purchase new equipment (AVR and integrated amp) that have the required inputs.
The AVR will need to be able to "pre-out" the front channels separately and the integrated (or preamp) must have a "home theatre bypass".
Once setup this will allow the AVR to use the integrated to power the front channels, while still allowing you to use the speakers in a two channel setup.
In my setup the only connection between the "home theatre" and my two channel setup is one interconnect cable.
If you need to find an amp with HT bypass, this site will help.