Class D is a modern technique for reducing power requirements of the power amp and supply for the power amp. It isn't used for preamps because preamps don't need those features. Preamps are class A.
What is the best type of preamp for a class D amp?
If I were to buy a Spectron Musician III Mk2 which type of preamp would give the best results, within a reasonable budget. Would it be a conventional transistor preamp, or a tube preamp or a class D preamp? If there are any Spectron amp owners who could share their experiences, it would be appreciated.