Replying to questions with more questions...
How loudly do you crank it up?
How large is the volume of your listening area? Is it smaller and maybe an enclosed area w/ 4 solid walls, or is it larger with maybe a cathedral ceiling or larger openings to other rooms or hallways?
Do you plan to employ "just" the 100s or also use a subwoofer?
And do you like your 3803 or do you really want to upgrade that too and the 100s could be a darned good reason? ;~)
All of those matter (along w/ any room treatment and maybe even what you usually listen to). The 100s do seem to love lotsa electrons so considering your amp section is a good thing now.
One last question - have you considered just adding an amp? You should be able to get something really decent here on A-gon if you don't mind used. There are all sorts of powerful options (depending on your budget), and you could probably just add the amp for a fraction of the cost of a new receiver.
You could just get the 100s and try them w/ the 3803 - if you like 'em as-is then you're not out of pocket for anything more than the speakers.
How loudly do you crank it up?
How large is the volume of your listening area? Is it smaller and maybe an enclosed area w/ 4 solid walls, or is it larger with maybe a cathedral ceiling or larger openings to other rooms or hallways?
Do you plan to employ "just" the 100s or also use a subwoofer?
And do you like your 3803 or do you really want to upgrade that too and the 100s could be a darned good reason? ;~)
All of those matter (along w/ any room treatment and maybe even what you usually listen to). The 100s do seem to love lotsa electrons so considering your amp section is a good thing now.
One last question - have you considered just adding an amp? You should be able to get something really decent here on A-gon if you don't mind used. There are all sorts of powerful options (depending on your budget), and you could probably just add the amp for a fraction of the cost of a new receiver.
You could just get the 100s and try them w/ the 3803 - if you like 'em as-is then you're not out of pocket for anything more than the speakers.