Firstly, Louis makes excellent speakers that are very musical and engaging.
One thing that I feel compelled to mention is that the Omegas (and any single driver I've heard, for that matter) has a tendency to sound much more "forward" than most multi-driver/crossover speakers. The effect (to my ears) is something like this: Multi-driver speakers are like sitting on the patio, looking at the trees, bushes, etc, of your nearby garden. Now, stand up and walk INTO the landscape, where the dimensionality and detail of the landscape is right there. You are in it. This is my experience of single drivers - particularly Omegas, and especially when paired with the Signature 30.2.
It is incredible.
However, my experience is that poorly recorded/engineered material (sadly, most rock on CD falls into this category), borders on unlistenable on the Omegas - the crappy quality of the recording (overcompression, peaky mids and highs, horrible sibilance, etc) overwhelms the music that is trying to get through. From what I understand, rock on vinyl is far more listenable.
I love my MaxHemps, but much of my rock collection has been relegated to the Yamaha mini-system or in-car.
That said, I do have rock CD's that sound AWESOME on the Omegas (Tool, Nine inch Nails, some Pink Floyd, the list continues).
I have not heard the new alnico drivers, so I do not know how they will compare.
Warmly,
Michael