I'm upgrading the speakers in my 1997 850R wagon. It has, I believe the upgraded sound system with the 200W factory amplifier. I plan on putting 3.5" 2-ways in the dash, 5.25" midbass in the front doors and 6.5 shallow mount 2-ways in the rear doors. I'll probably leave the factory tweeters in the rear D-pillars.

My question. Given that the factory front door speaker is a mid-bass without a tweeter and the dash speakers are tweeters, is the audio signal being filtered so only the appropriate frequencies are hitting each speaker? I didn't see a bass-blocker (capacitor?) attached to the front door speakers. I haven't pulled the dash tweeters yet.

I'd like to know, as I guess I could go ahead and put a 2-way in the front doors to replace the mid-bass, but if the highs are being filtered out, then I'll only use another mid-bass. Would 2-ways in both the dash and doors be to bright, or should I stick with only a woofer in the doors (like OEM)?

I assume the full range is getting to the rears as they are 2-ways OEM.