Re: Add a tweeter or cross lower?
Passive crossovers have limitations and you've discovered one of them. The 8" mid might not be 4 ohms at the frequency you're trying to lowpass it. That plus the sensitivity differences and driver mounting locations (on/off axis etc) make it hard to dial a homemade passive system in without a lot of trial and error.
Originally Posted by Bwap
At this point maybe you should consider an active solution where you can set the crossovers and speaker levels separately with just a twist of a knob. There are some nice 4 channel amps at reasonable cost that can do that for you.
1999 Buick Park Ave Ultra
Head Unit: JVC KWHDR720
EQ: Audiocontrol EQL
Front Stage: Hybrid Audio Technologies Imagine 5.25 mids, Morel Maximo tweets
Sub Stage: Boston G3 10", 0.5 cu ft sealed
Amp: PPI Phantom 900.4
Rear Fill: Boston SE953 6X9's