Is no preamp really better that a good preamp?

The answer is ... it depends.

A good pre-amp will add a distinctive sound of its own. You'd have to try one and compare to not using one to know for sure which sounds better to you.

+1 Mapman.

Having enough gain in a source component is not all that is necessary to get the best sound out of that component. The output stage of a good pre-amp is engineered to drive the input stage of a power amp, while any given DAC or phono stage may or may not be.

In a related topic, it is for the same reason that many listeners (no pun intended---see below ;-) find the sound of a passive pre-"amp" to lack something (see Art Dudley's column in the current Stereophile).

Totally depends on what type of equipment the respondent(s) sell here.
They'll be along shortly................

Rustler hi,
Please list your models of source and poweramp so we can let you know if you have a good impedance match to give you the best (most transparent/dynamic) sound.

Cheers George