I went with Memphis Sound Sub, speakers and amp. This brand is middle of
the road (read not MB Quartz,) and very high quality. The deck is a
Pioneer. These brand names are personal choices and biases, but just know
that it is like anything else. You get what you pay for. Choose something
that comes with good recommendations. I doubt that there is a much audible
difference for the average age of this forum and, for me, after many, many
years in industry, running and operating jet engines and other crazy
machinery, not to mention shoving my head into Jimmy's concert speakers in
1969, it goes without saying.
The main thing I want to offer here is that you do not need to cut
anything. Get 4" speakers all the way around. I have that, plus a 10" sub
(mounted like Jake De Villiers under the bench seat on PS, boxed in.) This
system is spectacular. It is just right for that amphitheater. Just saying
you do not need to cut.
Not rocket science. Spend a little money and be happy. I did everything for
600.00 or 700.00 and am very happy with it. I feel I spent the minimum
needed to get optimum value.
I'm doing this same system this week on my Syncro.
Good luck!
Miguel