Should I bi-amp or bridge my amps to feed my speakers

You bridge your amps and you create a public address system from a stereo system.  It will be louder and it will sound poor.  If you want to bi-amp, that will likely yield better results.  Speaking from experience here.

I have heard those speakers with and without subs at a dealer in Portland and the spatial difference was not subtle. They were also spread farther apart from each other than "normal" and severely toed in. I don't remember which amps were driving them but I'm sure there was more power than the 35 wpc you are using.

I have heard those speakers with and without subs at a dealer in Portland and the spatial difference was not subtle. They were also spread farther apart from each other than "normal" and severely toed in. I don't remember which amps were driving them but I'm sure there was more power than the 35 wpc you are using.

I am not sure that we know that for sure…

The amount of power in the 20–80 Hz region depends on the music, and the system with the subwoofer May have been <35 wpc, and the sub well over 100 watts.

We sort of don’t know, but it is possible to significantly lower the amount of power by adding the sub.

@aewarren 
Can you further describe the “not subtle” difference?

The room is 14 x 20. This amp is already louder than I can handle. Once in a while I turn the volume up half way on my pre-amp. Sounds good, but don’t need it that loud. I just want a little more bass. I’ll try bi-amp ing this weekend. According to the manual bridging is straight forward and easy.