Vibe makes pretty decent stuff.
That amp will be plenty. You have to look at RMS wattage not Peak or Max.
The amp does 75w RMS x 4 @ 4ohm.
The front speakers are rated at 80wRMS each and those 6x9s are rated 160w rms each so its a perfect match even though the 6x9s will be a little underpowered.