I'm still not convinced the speakers are to blame. However, I do think you can do better than the 9.1's. Do you place your speakers on stands away from the desk? Can you improve the source. i.e. try some wav files to test any difference? Also what type of music do you listen to?
If you like the Marantz and Aviano combo I would sersiously consider going for it. Alternative amps to check out maybe the NAD C316 or C326.
I have a couple of other ideas.
-As you are using a PC as source why not go for active speakers? You could always sell the CA 640 and wharfs
-Or I would try second hand speakers. You will most likely get better for the same price. I've bought a few second hand speakers and they have been great. This way you can sell them back for the same price or more - without any loss. and try some different ones. Also some of the older designs are sometimes warmer and don't have such a problem with harsh treble and the larger cabinets tend to give a bigger sound in general. Depends on the sound your after.
Another thought - if you are using them close to the wall you may want to consider front ported design and not rear ported. Everyone has there own preference.
Monitors maybe worth considering if you are listening at close proximity using a desk and PC. In fact this could be the problem (i.e. listening zone very close to speakers at desk). How do the speakers sound at the other end of the room? Hope this may help or confuse more ! Cheers
If you like the Marantz and Aviano combo I would sersiously consider going for it. Alternative amps to check out maybe the NAD C316 or C326.
I have a couple of other ideas.
-As you are using a PC as source why not go for active speakers? You could always sell the CA 640 and wharfs
-Or I would try second hand speakers. You will most likely get better for the same price. I've bought a few second hand speakers and they have been great. This way you can sell them back for the same price or more - without any loss. and try some different ones. Also some of the older designs are sometimes warmer and don't have such a problem with harsh treble and the larger cabinets tend to give a bigger sound in general. Depends on the sound your after.
Another thought - if you are using them close to the wall you may want to consider front ported design and not rear ported. Everyone has there own preference.
Monitors maybe worth considering if you are listening at close proximity using a desk and PC. In fact this could be the problem (i.e. listening zone very close to speakers at desk). How do the speakers sound at the other end of the room? Hope this may help or confuse more ! Cheers