One good option would be an older Martin Logan speaker. As a hybrid electrostat it should offer the HF clarity and soundstaging you're looking for coupled with adequate bass performance for rap music.
Another option is an Audio Physic Tempo, with its metal dome tweeter which offers the HF extension you're looking for.
A PSB stratus silver would be a good choice, too. It has good midrange fullness coupled with decent bass extension, but not quite as extended on the highs as some of the other options. Still, it's a solid choice. A stratus gold would be even better, but I doubt the Marantz receiver would drive it adequately.
If your room is bit enough, the Magnepan MMG's could be a good choice, although perhaps not quite as suitable for rap. And I also have reservations about the pairing with the receiver in this example.
Michael
Another option is an Audio Physic Tempo, with its metal dome tweeter which offers the HF extension you're looking for.
A PSB stratus silver would be a good choice, too. It has good midrange fullness coupled with decent bass extension, but not quite as extended on the highs as some of the other options. Still, it's a solid choice. A stratus gold would be even better, but I doubt the Marantz receiver would drive it adequately.
If your room is bit enough, the Magnepan MMG's could be a good choice, although perhaps not quite as suitable for rap. And I also have reservations about the pairing with the receiver in this example.
Michael