The gods must be sleeping so I'll toss in my two cents.
I will second Sidssp on haveing a Dreadnaught and loveing it, I also would not trade it for the model II. I dont care for the trade off in warmth and musicality for a bit more power and bass control.
I also haven't heard the Titan (sorry). I have never found
a Shop that carries Simaudio.
After hearing the Theta in differant audiophiles systems I
was sold. For the price they can be had, I dont see any
competition.
If you do buy a new dreadnaught, you really only need the
225 watt modules for front and center channels, and one
2x100 module for the rears. You dont need that much power
for rear channels. Or, two 2x100 modules if you are going
to have 7 channel. In that respect, the Dread is more flex-
able.
Despite however many channels you have in your Dread, you
can switch off any channels you are not useing. You can
also switch off all of your surround modules with a front
panel switch if needed. Try that with the Titan, or any
other multi channel amp. Plus the front panel switches on
the Dreadnaught are totally Bitchin.
Also, just so you are aware, either one will make a terrific room heater. No kidding, and in five channel (or
more) your electric meter is really going to spin.