Harbeths are not all that picky about amplifrication (I have HL5's myself). Plinius has always been a popular combination with Harbeth. You could get a used 9200 integrated within your budget.
The Nuforce would be very interesting to try. If you do, please let us know how it goes.
The Nuforce would be very interesting to try. If you do, please let us know how it goes.