I’m with Audiotroy in that if you were planning on keeping your current amps, I would steer toward the Legacy Audio speakers (which are also more efficient than the A3’s). However, if you’re prepared to do some more upgrading down the road, based on the qualities you’re looking for my pick would be the A3’s. However the Magico’s will expose the weak points in your system, being your amplification and Rotel cdp. But that’s ok. You could start with the A3’s, then save up for a good integrated amp such as a Audio Analogue Maestro Anniversary, Audia Flight FLS-10 or Vitus RI-101 later on. You’ve already got a very good analogue front end.
In terms of other speakers which meet your requirement " to get better clarity on the vocals and more separation on the individual instruments" for rock & blues music, you could look at the Joseph Audio Profile ($9.8k). The Profiles only dig down to 39Hz, but you would be crossing over to your sub around 70Hz anyway. Another speaker you could consider as a mint, pre-loved option is the Devore Fidelity Gibbon X. The Gibbons have spikes, but no outriggers. But providing you don’t have young kids running around or an over-active dog, they’re fine. Msrp is around $16k, but they can be found used in minty condition circa $10-$11k if you’re patient. The benefit of those speakers is they’re both efficient and give you more amplification options, including tubes.
In terms of other speakers which meet your requirement " to get better clarity on the vocals and more separation on the individual instruments" for rock & blues music, you could look at the Joseph Audio Profile ($9.8k). The Profiles only dig down to 39Hz, but you would be crossing over to your sub around 70Hz anyway. Another speaker you could consider as a mint, pre-loved option is the Devore Fidelity Gibbon X. The Gibbons have spikes, but no outriggers. But providing you don’t have young kids running around or an over-active dog, they’re fine. Msrp is around $16k, but they can be found used in minty condition circa $10-$11k if you’re patient. The benefit of those speakers is they’re both efficient and give you more amplification options, including tubes.