optikalefx

Sound quality is the abilty to reproduce the original track the most perfectly .

if you talk about subjective thing...it is just an opinion..somme people want more bas..more vocal...etc...i suggest you do the same as DP has suggested. Hook it up.. and if it sounds as clear as you want and will go as loud as you want you have no need for the 3sixty or any other kind of DSP. The reason i added the 3sixty was simply the signal coming out of my pc was too low, forcing me to ramp up the gain settings on my amps. It STILL didnt get loud enough and i had amps overheating on me to boot. That was 2 years and 3 carPC's ago. Now the only reason i still have the 3sixty in play is because the 10 channel eQ is tuned to my liking and i'd rather not have to change it inside of software. My dg45fc motherboard onboard audio signal puts out more than enough by defaultI've got ~50% hearing loss in one ear, so you don't necessarily want my idea of "good sound". My standards are probably lower than most in that regard.

Furthermore, sound quality is pretty subjective. Some people are simply more sensitive to audio quality while others are not. I don't know about your level of "audiophile-ness", so I am certainly not one to judge.

That's why YOU need to run some audio in your vehicle and listen to it. Listen for what you like about the audio quality and what you don't (too much bass, a slight hiss sound, flat mid-range, etc.), then adjust your hardware accordingly.

You may very well be content with onboard sound straight into an amp. You may want digital signal processing. You may want 5.1 surround. You may only want enough bass to annoy your neighbors.

I think you're going about it the wrong way, then.
You need to understand the purpose and function of the 3Sixty line and determine if it something that will be a benefit to your installation and/or your plan, not necessarily where it fits into this user's install.
It is very possible that this specific setup has a need for a 3Sixty unit, or has some plans for its capabilities that your install does not.

3Sixty isn't a sound card at all.
It's a signal processor for car audio.