The Bose is bad...it just does not suck as much as the poly planer!
For a 6.5" round flush mount speaker (the largest)...get an Infinity Kappa 602M
For a box type speaker get a Polk Atrium45
Either choice is about $150 for quite nice sound without going nuts on the price.
Crutchfield has both...Circut City has the Polks, BoatersWorld has the Infinity's as well.