I'd go with the little Infinity TSS750 system for the cheepest. Then, for a little bigger, the Polk system at $1k retail is even better. All that used is going to stomp the Bose system sonically, if that matters to you.
The Denon will do well fine for both systems, depending.
Actually, if it were me, I'd look at Sherwood Newcastle's new receiver, with a built in self calibrating Parametric EQ for all channels, including sub! This REEEEEEEEEEALLY helps make the system response (and thus overall sound) INFINITELY more accurate and flat! This is critical if you need to place speakers on the walls folks! I gotta tell ya...
P.S., I've sold Bose in 3 stores over the years.
Good luck
The Denon will do well fine for both systems, depending.
Actually, if it were me, I'd look at Sherwood Newcastle's new receiver, with a built in self calibrating Parametric EQ for all channels, including sub! This REEEEEEEEEEALLY helps make the system response (and thus overall sound) INFINITELY more accurate and flat! This is critical if you need to place speakers on the walls folks! I gotta tell ya...
P.S., I've sold Bose in 3 stores over the years.
Good luck