This single speaker has been posted on my local Craigslist for sometime. I flirted with it at $300, but now it's been relisted at $200. The cabinet is on legs and is quite handsome. The only Altec badging is on the rear and is a green HF attenuator. There is a switch and another black attenuator on the back too. Despite my tweaking, the photo of the front grill reveals only a single largish driver. Maybe a 601 or 602, but I'm wishing hard for a 604. Maybe a 414 and a 3000A. My plan is to pull the back and check resistance at the voice coils. At this price is there anything to definitely avoid?