Focal diablos vs Dynaudio focus 380 PLEASE HELP

$7.5K should be more than enough for buying a pair Confidence C2 speakers
which should be much better than the Focus you are considering. Regarding
Bryston electronics, they certainly work fine with Dyns, but IMO there are quite
a few other combinations that will work better. Plinus and Simaudio are among
the most popular, Musical Fidelity (their big integrated KW 500/550, TRi-Vista
and NU-Vista) will give you a full worm sound with good detail and powerful
bass, Accuphase will work even better.

Regarding your desire to reach 115 dBs in your room. My advice would be to
take care of your ears. They do not grow back and/or regenerate. 115dB is
extremely loud.

Finally, I would like to corroborate what Elviukai said, i.e. Focal Diablo (also
Micro Be) are much easier to integrate with a sub. Dyns speakers, with their
powerfull low end, are more difficult to integrate seamlessly (at least this is my
experience).

$7.5K should be more than enough for buying a pair Confidence C2 speakers
which should be much better than the Focus you are considering.

I wouldn't be so sure that the C2 beats the new Focus floorstanders.

I have nothing to add to the other comments, as I have not heard the Focals, but I would like to comment on your sub question. I have integrated many subs in different type rooms. It is as much a function of the room as the speaker. If full range placement gives you a 60 hz bump, you can cross below that and move your sub placement to keep good low end, but eleviate the issue with a 60 hz bump... or any frequency for that matter.if there is no bump or dip below 90 where you want to cross, I have also experienced that a higher crossover point can clean up the speaker so that mid bass or even mids can be improved. Proper integration is a matter of the speaker, placement and the room.

The Focals have the better tweeter, true?

Drubin, my experience is that older models from superior lines (e.g. Confidence
mk1 models) are almost never outperformed by newer models from inferior
lines (e.g. new Focus models). This is especially the case with companies like
Dynaudio. I have never compared the Focus 380 and the C2 mk1 speakers.
However, I have compared the Confidence C1 mk1/mk2, Contour S1.4 and
Focus 160 monitors. If the amp is up to the task (i.e. drive appropriately
Confidence speakers) then to my ears there was no contest C1 mk1/mk2 >>
S1.4 > Focus 160. I see no reason why this situation will change when
comparing the floor standing models from these lines. Finally, I realize that
many might prefer a speaker with more bass (Focus 380) over one that images
more precisely (C2 mk1).

Dave, one should never buy a speaker for its tweeter. It is the midrange that is
important. The Focal and Dynaudio speakers sound very differently as their
designers had very different goals. With Focal the focus is on transparency and
speed, whereas with Dynaudio the focus is on the music. That is, Dynaudio
speakers have a more relaxed presentation and a much more fuller midrange
(and bass) than Focal speakers.