I hear you....

However, if active crossover is the ticket, I was going to wait for a DCX-2496 to walk into my life.

However, I decided to go to the source, and called Steve at GPA. Even he was unable to lay his hands on a 515 spec sheet, but his advice was to cross over at 800 Hz or so because of some of the driver characteristics w.r.t. vocal reproduction.

So 800Hz it is....for now...