If you run short cables you can get away with this. But if you have monoblocks (which are useful for keeping your speaker cables as short as possible) then no so well. I've found that using balanced connections to the monoblocks and having short speaker cables got me better bass, more engaging midrange and easier to understand vocals.
You can't do that with a passive- it allows the cables to color the sound. Quite often sources like a DAC can't handle long cables either. But I've found over time that the quality of the preamp has an enormous affect- and the length of the cables has nothing to do with it. Some are terrible- and so using no preamp at all is better, and some are great and actually sound a lot better when used.