Right, I'm going to impart some of my wisdom, so sit in a comfy chair... You comfortable? OK, I'll begin:
Focal Speakers:
Lovelly.
You don't need the slimlines though, just tighten the screws tighter, that's what I've done and they're sweet.
Tweeters:
I've got mine in the stock location behind the OE grilles near the mirrors, but I've heard A LOT of installations using focal tweeters where the tweeters are fired across the cabin AT eachother and they sound MUCH better, much much better! If I had the time, money and could be arsed, I'd change my install, but I've found that by cutting some mid-high using my EQ, I've been able to sort the sound on mine.
Head-Unit:
Your Alpine should rock... My system is run using the standard Gamma and it s-its all over many systems I've heard, so your Alpine will be great...
YOU JUST NEED TO AMP THOSE SPEAKERS!
(sorry to shout!)
Seriously mate, get an amp.
I have a Boston Acoustics 2ch amp powering my Focal Polyflex (old Focals, not as good as even the new Focal Access Range) and bejesus it sounds good.
Sub:
If you're serious about having a nice sounding car, you NEED a sub. I'm not on about making your ears bleed here, it's just that however good your front components sound, as soon as you start driving the bass will get lost in the road-noise, so you need to reinforce it... Unless you listen to music with no basslines?
My System:
VW Gamma (Blaupunkt)
VW 6-Disc
Audibahn in-dash EQ
Boston Acoustics 2ch Amp
Focal Polyflex Components
Kicker 2ch Amp (Bridged)
Rockford Fosgate Punch XLC 12" Sub in sealed box
Dynamat in doors
Rear speakers disabled
And it sounds good imho.
Not as nice as Audioscape's Saxo that I sat in at Inters.... That had THE most beautiful sound I have EVER heard in a car system. It took SQ to a next level for me. I almost weapt when I was listening to the audiphile test CD they were playing... It was THAT good... Moving is a good word for that system. But that's mega-bucks!!!!
Anyway, I hope you've learned something through my ramblings?
Get an amp for starters, then a sub!
Boston Acoustics make some VERY nice amps. Check their stuff on the net.
Good luck mate, with the Alpine and Focals, you're halfway to getting a very nice system!
