I used the McIntosh MA6500 for several years with Dynaudio Special 25's and Ma ggies. Excellent integrated amp. I sold that and now use a C2300 & MC402. With the Dynaudios the separate amp and preamp give better performance, but not by much. The extra power and fully balanced amp may be the difference. The performance per dollar is in favor of the MA6500. My only complaint with the MA6500 is the 1/8th inch mini plug for headphones. One standout of the MA6500 is the phono stage (mm) which was dead silent and sounded great. You can also hook up and switch 2 pairs of speakers.
If you want the most for your money the MA-6500 is a great choice.
If you want the most for your money the MA-6500 is a great choice.