Yes, first you buy an amplifier with super-wide bandwidth and then buy Transparent cables to limit the bandwidth.
IMO, the way you are approaching this is putting you straight on the road to audio hell. Everyone does the same thing - they buy products that are "revealing", "detailed", "heard things I never heard before", supertweeters your dog can hear, etc. Then they come on to A'gon and bitch how their systems are bright and harsh.
Just listen to some speakers and buy what sounds good. Don't worry about the specs. All of the speakers you could reasonably buy go out as high as you need them to go. If you can't trust your own ears, then find someone whose ears you do trust and let him pick the speakers for you.
IMO, the way you are approaching this is putting you straight on the road to audio hell. Everyone does the same thing - they buy products that are "revealing", "detailed", "heard things I never heard before", supertweeters your dog can hear, etc. Then they come on to A'gon and bitch how their systems are bright and harsh.
Just listen to some speakers and buy what sounds good. Don't worry about the specs. All of the speakers you could reasonably buy go out as high as you need them to go. If you can't trust your own ears, then find someone whose ears you do trust and let him pick the speakers for you.