Has anyone tried two bridged Parasound A23s?

I have one A23 and I am considering purchasing a second to run them in mono mode. I am not sure if the benefits will be worth the cost. I have fairly sensitive Boston Acoustics VR-m80 speakers at 90db sensitivity, but I am not sure of the impedance curve. Will more another A23 bring more dynamics, detail, or a better soundstage?

BA VR-m80 Speakers
AQ type 6 speaker cables
Cardas crosslink interconnects
Denon DVD 3800
Parasound P3 preamp
Parasound A23 power amp
You'll cut the damping factor (bass control) in half, if you bridge the Parasounds. If the speaker is biwireable,
I'd biamp it with 2 channels per speaker.