I am considering where to go next with my setup, and the progression gets pretty expensive after speakers. Unsure how much I want to play with DSP when it sounds better than most already just with minor door treatment and speakers with stock HU and amp. If you were to do it over again with equipment today… what would you do? I am looking at a Sony Ax6000 and JL amp to pair with it, but there are a lot of more complicated setups these days to consider.
I think it's very dependent on your budget and expectations. It's tough because as soon as you want something "nice" you should really be running a proper aftermarket amp for the doors and subwoofer. That escalates the price of the build real fast.
Assuming you're aiming for something some might consider special and plan on replacing the factory amp:
Speakers are by far the most important part of the equation. Based on my experience, the tweeters are the soul of the system. Lots of subwoofers can sound great. Lots of components are great. Lots of tweeters are a huge let down - maybe because they flavor the sound or because they lack the clarity to let you hear details. They're probably the least sexy component and probably the first thing you actually notice in sound (aside from subwoofer rumble).
When you set your budget, ensure that speakers get the very first priority and the biggest budget allocation. You don't have to spend a fortune. IMO, the sweet spot is right around $400-700 for a component pair. That gets you into the low end of the "good stuff". With Morel that gets you neodymium magnets on the woofers and tweeters and I think that makes a difference. The Morel line goes up to $5k for a pair of speakers. I didn't notice an immediate difference after the $500-1000 range. Maybe' I'd be blown away by those higher end offerings in a perfect setting, but in the demos I got it was the Virtus and Hybrid lines that stood out as obviously better than their lower counterparts.
The DSP was a game changer for me, but the speakers sounded AWESOME even with the default settings on a normal AB class amp. The DSP will give you some clarity, but mostly even response and some sense of sound stage that you just can't achieve without active control over each component. Is that worth it? Definitely not for everyone. If you think MT tires are "quiet enough" and you don't mind the wind noise in your improperly installed windshield then you're not a DSP person, haha. The tweeter is right by your face. The mid is feet further away. If you spit out the same sound at the same time those noises don't hit your ear at the same time and your brain picks up on that. The result is a lack of clarity and detail. It can still sound good, but I think there's a valuable difference to be had when you delay each component. Again, not everyone cares.
If I were doing it again today:
Morel Virtus/Hybrid/Elate speakers (front only, no rear speakers at all)
Mosconi DSP (or some other 8 channel DSP)
Dual 10" subs in a sealed box
Sound treat the doors and rear wheel wells (I'd probably just do soundskin or something simple)
Some sort of amp arrangement (tons of great stuff out there now so I don't even know what's best)
Not sure if that helps, but there's my brain dump for the evening.