Bro,
First, we have to consider your budget. If you can afford the Euros 8 or 6, then by all means. If you can afford an even more expensive speaker system, go ahead. This is to lessen the possibility of a future upgrade. But if you want the most affordable but highly capable speaker system, the DTX 9.5 system is hard to beat at its price.
Also, it's best to get the entire system to ensure timbre matching. I mean, get the center, the towers and the bookshelfs. Not necessarily all at the same time, kahit na paunti unti. Every speaker has it's own characteristeic that's why it may not be so ideal to have different speakers in your HT system. At least get speakers from the same manufacturer. Then get a front firing sub, not a bandpass one. Like the DTX 4.10 or 4.12 or even a Dynaquest DQ12. More accuracy there than bandpass ones.
In terms of clarity and detail, di ka talo sa DTX 9.5. They're just wonderful, at least for me, especially when I realize how inexpensive they are. I recently loaned to a friend my DQ12 which is what I use for my bedroom set up, so we recently watch without a sub, pretty adequate na naman ang bass nya, but do get a sub to augment response in the lower bass region. But if you can afford the Euros 8, all the better.
