Indeed. I picked them up randomly on eBay a couple of years ago for less than the value of the drivers alone.
I didn’t make much use of them, until I built a desktop PC last month. I originally wanted to build a valve amp for them, but they go well with the Topping bits.
New desktop setup:
PC > Topping E70 DAC > Topping PA5 mk.II amp > Blumenstein Orca speakers.
I like it a lot, tracks with acoustic instruments sound incredible.