Are class A tube amps similar to class A solid state ...

in that small watts can drive electrostatic speakers ? 25 watt Mark Levinsons are famous for driving difficult loads . Have experienced it myself with a 60 watt class A Musical fidelity integrated driving my electrostats. Looking to try some tube amps for King Sound King v1 speakers . King Sound makes a 80 watt amp that is intended to be used with the most recent version of my speaker. It can be seen on their website . Some specs are shown . Leads me to believe there is a good match tube amp out there somewhere to drive them . Budget is around $2500 used . Thanks