Any decent tube preamp or buffer stave would go nicely with Class D amps. As mentioned, tubes are the key to a well balanced system using Class D amplification. We have been designing around Class D for several years.
The Bel Canto's have a high input Impedance, 100K/200K ohms so there are no concerns there. They do have a rather high sensitivity at 3V but again, most preamps will drive them to full power with no problem
The Bel Canto's have a high input Impedance, 100K/200K ohms so there are no concerns there. They do have a rather high sensitivity at 3V but again, most preamps will drive them to full power with no problem