Open baffle loudspeakers usually have their crossovers on a board right behind the upper drivers. Danny Richie does his GR Research OB’s that way, and uses unusually high quality parts (Sonicaps, Mills resistors) to create them. In his Tech talk Tuesday videos, Danny takes apart mainstream speakers that have been sent him by clients for upgrading, showing all the crap x/o parts used in even fairly expensive speakers, and describes what he replaces them with.
