@traudio I am not sure how your Dynaudios sound but if you want an amp with very strong bass check out the Schiit Audio Wotan. Low cost and it is really good but needs more break-in than afforded in the 15-day home trial period.
Schiit Audio: Audio Products Made in USA
The new Schiit Audio Singular DAC is also very good, and it is also a preamp and can be used with your iPhone (and maybe Android now). It is a custom Delta-Sigma design and really shows the DAC expertise at Schiit.
Schiit Audio: Audio Products Made in USA
I owned both Schiit units and they were very good. I sold them to replace the Wotan with a CODA #16 amp and the Singular DAC with the imersiv D-1 DAC. Much more expensive and better. The price is crazy for the replacements, but the 2 Schiit units I mentioned maybe end game for a lot of people. You can also try them at home to decide.

