Too bad Baab isn't around anymore. They had a nice aluminum cone full range 6X9. What others said about rear fill was good. Just get a full range 6X9 w/o a tweeter or get some cheap 6X9's and rip out the crappy tweeter and cap they use as an x-over. And that 150WPC amp is that "car stereo watts"* or real FTC watts from 20-20K @X ohms and X% THD? Or as Zappa said is that Mexican Poncho or a Sears poncho? Good luck!
ET
Most car stereo amps just make a wattage claim of X watts @X ohms which may be just @1K not across the full bandwidth and usually don't include a distortion figure with the claim.
ET
Most car stereo amps just make a wattage claim of X watts @X ohms which may be just @1K not across the full bandwidth and usually don't include a distortion figure with the claim.