No - I was saying you should completely disregard amp ratings given as Max or Peak values. They're meaningless numbers excepting to the folks in marketing departments.
What you should pay attention to are the RMS output ratings. Those are a much more accurate guage to use in determining if the output of X, Y, or Z amp is going to be suitable for your purposes/needs.
So!
Having said that - you have a pair of MA Audio 10s rated for 300w RMS each. From the information I have found they are Dual 4 Ohm voicecoil drivers. Is that info correct?
Going by that information your amp needs are going to be either a monoblock that makes 600w at either 1 Ohm or 4 Ohms or a 2-channel that makes 300w per channel @ 2 Ohms.
So - let's look at your choices:
Ample Audio Exonic 450:
150w X 2 @ 4 Ohm stereo
225w X 2 @ 2 Ohm stereo
450w X 1 @ 4 Ohm mono bridged
Power Acoustik LT980-2:
220w X 2 @ 4 Ohm stereo
280w X 2 @ 2 Ohm stereo
560w X 1 @ 4 Ohm mono bridged
Profile AP1000:
160w X 2 @ 4 Ohm stereo
240w X 2 @ 2 Ohm stereo
480 X 1 @ 4 Ohm mono bridged
Looks like the best option out of those listed for your needs will be the Power Acoustik unit...