Will it be a noticeable difference in quality?

I have the sub amp combo, deadening material, aftermarket speakers and [amp, tweeters, and lc2i. I have also spent an excessive amount of time tuning (target voltage and tweaking the hpf/lpf and all that jazz). I haven’t upgraded the stereo or added a dsp yet. My system sounds great as it is now. How much better will adding a quality aftermarket stereo make my system sound?

I have put it off for some time as I originally invested in the lc2i and with everything else i added, the system performs very, very well. I use a flat eq band and high quality audio files already. Will it be a noticeable difference in quality? edit not too worried about a dsp yet, i plan on getting one later on, when i reupgrade the component speakers and speaker amp](https://www.kynix.com/components/ADA4807-Amplifier-Datasheet-Pinout-Circuit.html)

My understanding is that it would largely depend on the audio chip inside the stereo; anything that has been digitized is subject to losses…if you upgrade to a stereo that uses a superior audio bitrate, you should immediately notice a improvement in quality.

You might poke around something like https://www.avforums.com/ to have some folks that specialize in audio to offer some additional insight(s)