Finally found 610HLF locally, but 2002 model so...

[chubrocker]

It's $500, so decent price. It's in very good condition. But, I feel I won't be happy with it due to the year. I presume the quality issue fell on the 610s as well as the 810s during the 97-07 SLM era (OBM material vs plywood, lower quality speakers)?

[JimmyM]

Not sure about the speakers, but the newer 410HLF's do sound better to my ears and I believe the 610HLF has similar speakers. The cab is made with OSB, though, so at that price I'd pass.