Most of the KT88/KT100 tube amps are designed to be more acoustic, while the HiVi D series also has a neutral to cold tone. Both are more suitable for listening to explosive music. If you want to hear human voices, don’t choose this combination. You can consider using EL34, KT66 push-pull machine or 845 single-ended machine to push some European and American boxes or British boxes. French Jinlang's 10" three-way and JBL10" 12" two- and three-way can be considered. The box is too small The speaker diameter is too small and the efficiency of the box is generally too low. The sound is warm and soft enough but loses dynamics