affordable mono blocks??

[Dusty Chalk]

Using my example the Parasound Halo JC1 can do 800 watts/channel @ 4 ohms

The HaloA23 in bridge mode can only do 400 watts/channel @ 8 ohms.

But you're comparing apples to oranges here -- are you trying to tell me that the Halo A23 is somehow equivalent to the Halo JC1? The A23 is a $850 amplifier, the JC1 is a $6000 amplifier. It's not better because it's a monoblock, it's better because it's a better amplifier.