Mchd,
I have had a pair of 1.6QR's for 11 yrs. In that time I've gone from an Adcom 5500 to a McCormack DNA 0.5 deluxe to McCormack DNA 1.0 deluxe monoblocks to Cary 500 MB's. Each step in the progression was a step forward, but I had a pretty nice system with the DNA 0.5 (for which I paid $750.00) driving the Maggies. If you listen to music that requires 25 Hz, then maybe these aren't the speakers for you. Personally, once I got the room placement figured out, I lost all interest in augmenting with a sub. Most of us build systems over time. I chose to build a system around the Maggies, because their strengths play to my preferences. If their strengths appeal to you, you might consider a good used high current amp as a stop-gap until later.
I have had a pair of 1.6QR's for 11 yrs. In that time I've gone from an Adcom 5500 to a McCormack DNA 0.5 deluxe to McCormack DNA 1.0 deluxe monoblocks to Cary 500 MB's. Each step in the progression was a step forward, but I had a pretty nice system with the DNA 0.5 (for which I paid $750.00) driving the Maggies. If you listen to music that requires 25 Hz, then maybe these aren't the speakers for you. Personally, once I got the room placement figured out, I lost all interest in augmenting with a sub. Most of us build systems over time. I chose to build a system around the Maggies, because their strengths play to my preferences. If their strengths appeal to you, you might consider a good used high current amp as a stop-gap until later.