I'm new at this audio thing but have officially been bit by the audiophile bug! It started back about 3 months ago when I got a new system a NAD D3020 integrated amp and a pair of Dali Zensor 1 speakers. I had read about the Dali Zensor 1 on wirecutter. They are just fun to listen to; they just put a smile on your face whenever I listen to them. It truly is my first "audiophile" system if you can call $350 dollar speakers and a $400 dollar amp an "audiophile" system?

So anyway now I'm wondering how much better does it get? What if I upgrade the speakers to Sierra 2's or to the new Sierra Sat's I like the size of my Dali Zensor 1's. How much will I notice almost immediately and long term? I guess what I'm asking is how much difference is there in $350 Dali Zensor speakers and $1200 - $1500 speakers?

What about my NAD D3020 amp will it need upgrading to or will it drive the Ascend Acoustics every bit as well as the Dali's?

Thanks any input - to a new budding audiophile