It looks like you want to stay in the $1200 range on budget? I would recommend staying with the Dynaudio for your sub as well. I carry all the equipment you have listed, so hopefully you take this as an informative opinion. Nice start to a great sounding system by the way.
I recommend the Dynaudio Sub250 ($1000), it's a great small sub. The bass is clean and tight and extends and holds it's composure in the 30hz realm. Secondly, the Sub300 ($1500) will take you down to 25hz, which will help in HT. My personal favorite and the one I'm using in my own theater room right now is the Sub500. At $2K it's not cheap, but this sub is a phenominal performer.
The Denon is fine as a pre-pro for now. Buy a nice sub and it will definitey round out your system. Give me a shout via email if you want more detail.
ttowntony
I recommend the Dynaudio Sub250 ($1000), it's a great small sub. The bass is clean and tight and extends and holds it's composure in the 30hz realm. Secondly, the Sub300 ($1500) will take you down to 25hz, which will help in HT. My personal favorite and the one I'm using in my own theater room right now is the Sub500. At $2K it's not cheap, but this sub is a phenominal performer.
The Denon is fine as a pre-pro for now. Buy a nice sub and it will definitey round out your system. Give me a shout via email if you want more detail.
ttowntony