The Fastest most musical amp

Since I got the upgrade bug and the only cure is to change my preamp and amp I am looking for some advice of our great Audiophile community to help me find the amplifier and preamp combo that suits me best. My priority are the folowing: I want to find the FASTEST and MOST MUSICAL amp and preamp ( It can be tube preamp ( tough I think all tube preamp are slow) or solid state preamp but only solid state amp.) I know that spectral is known to be one of the fastest but I don`t like the idea of being forced to use the Networked MIT cable (which slow up the sound much)