Associate degree in audio electrical, master installer in stadiums while in college doing ice rinks, Ampitheaters, church's, 2 yachts, and many lake front venues. Car's i'm a geek on...you can CONTROL the sound environment much better than on a boat. On a boat you have acoustical issues....so what you use a Real Time Analyzer on the boat in your garage, in one bay, or an open ocean, or at 60 degree water temp or 80 degree water temp or wind direction..NOW ad in engine noise and different speeds and you have an acoustical nightmare. So with that being said...with a few degrees, several years of very technical installs, 14 vehicles, 12 boats...I can tell you. Don't go too overboard..you'll get frustrated with results in one scenario vs another..unless you are in the same area ll the time in the same conditions. When you get this done though I'd drool to hear it.
Latest rendition at 47 dad of 3 that now changing professions 12 years ago to financial advisor I set a budget of $1000 and stuck to it...yes yes yes I know that's LOW for a boat...but It accomplishes 90% of what I'll need when I have 6 others on the boat that aren't audiophile and make me play for the umpteenth time that stupid stupid rap/cowboy song with Billy Ray Cyrus. My speakers will cry and bleed playing that shit. I just gave a MINI what I did in my boat on my other thread just finished tonight.
Set a budget and stick with it. Now my car, that's a different story 2016 F150 FX4 Sport 3.5 Twin Turbo with 550 HP.
RTA's processor, DSP processor, 4 amps, 4 JL Audio Subs in enclosed engineered and port tuned boxes for the environment, 12 speakers, 3000 Watt's, Dynamat in every area you can think of...and it all looks OEM from the drivers seat, minus 2 pots for quick sub control and my IPAD hidden in the top of my armrest. But I drive that to work each and every day and up north for long stretches year round. The sound environment is controlled and the same all the time. Spend money where its makes the most difference.
But if you do go all out on the boat..I'd love to see pictures and hear it....that is if its within 3 hours of Milwaukee WI area. Good luck!
Many TOP sound engineers in the country that worked for the BEST sounding sound environments for Peter Gabriel, Prince, Pink Floyd and U2..the best of the best land those jobs...were my mentors...they all said open environment near WATER is the worst to tune for as the environment changes! I remember that lesson well.