I have been fortunate to have hours and days of listening to Focals, Infinity, Kickers, Rockford, Polks, Blaupunkts in various configurations, but Morels are the best of the lot only to be surpassed by very few (not so much available here) brands from US and Europe. Ofcourse Focals, Audioson etc. are fantastic brands themselves for audiophiles, but we are talking about entry level systems here and even there Morels stand out clearly in the Midbass and tweet regions. The problem is that every speaker design, material, fabrication, has a distinct sound signature and range which is speciality of each brand. Therefore it is best to buy one brand rather than mix matching. You will have complains and not be satisfied with either brand of speakers in case of mix match no matter how expensive the speakers are. Have committed this mistake before. Only exception to this rule being the subwoofer to a large extent, which should have controllable power and needs a perfect enclosure design as per its theile-small parameters. But underseat subs save you from all those design and fabrication complexity issues. And within their limitations of driver size of 8" or 10" deliver reasonable performance mainly with the huge benefit of space savings. You definitely go for rear co-axials if budget contraints are there, and you can power them directly from HU incase you are choosing just a 2 channel amp for front components. In which case you could go for Morel 5C also. Just to envelope the cabin with sound for rear passengers. Ideally ofcourse, instead of those you should have rear ovals from Morel because you are already going to be slightly bass starving inspite of underseat subwoofer. Ofcourse in which case you will need a 4 channel amp for front comps. + rear ovals which perform much better with more power.