Arc makes great amps. Even the low-end Kar amps are great.
I really think there's nothing wrong either of your designs, but I'd say that if you've heard the gear you're looking to buy and like them, go with them. Someone here might knock metal domes, but maybe you like them. I really don't like metal domes, but I've found the XRs to be pretty good for metal dome. So, it really depends on your personal preference.
Don't get the Rainbows because someone said you should; You may not agree with their preference and end up with something you don't like. When possible, always listen first-hand to the stuff you're looking at. Failing that, you should at least know what you like in a speaker and let us know what you're looking for so that we can try to think of similar sounding stuff.
Are you planning to do the install yourself? If you're not, and you can find an Arc dealer, it might be worth your while. Why? Their amps are great, their ACS components are Rainbows and their Arc series subs are built by Image Dynamics. You could go all Arc and get really good gear, and if you're looking to have it installed, you can probably work with the installer for a deal. Same goes for JL if you want to do an all-JL system.
On the other hand, if you're going it yourself, you're free to pick and choose from all the available deals.
I really think there's nothing wrong either of your designs, but I'd say that if you've heard the gear you're looking to buy and like them, go with them. Someone here might knock metal domes, but maybe you like them. I really don't like metal domes, but I've found the XRs to be pretty good for metal dome. So, it really depends on your personal preference.
Don't get the Rainbows because someone said you should; You may not agree with their preference and end up with something you don't like. When possible, always listen first-hand to the stuff you're looking at. Failing that, you should at least know what you like in a speaker and let us know what you're looking for so that we can try to think of similar sounding stuff.
Are you planning to do the install yourself? If you're not, and you can find an Arc dealer, it might be worth your while. Why? Their amps are great, their ACS components are Rainbows and their Arc series subs are built by Image Dynamics. You could go all Arc and get really good gear, and if you're looking to have it installed, you can probably work with the installer for a deal. Same goes for JL if you want to do an all-JL system.
On the other hand, if you're going it yourself, you're free to pick and choose from all the available deals.
