Actually, I already emailed Danny. Danny confirmed he was the one that designed the upgraded skiing ninja crossover for this speaker. The problem is Danny stated that he can only sell me the kit's COMPONENTS (bunch of capacitors, resistors....), and I will have assemble them myself!!. While I can solder here and there a little... I dont have the knowledge, experiences, and capable to assemble the complete circuit board from scratch. Even my local tv repair shop refuse to do this job (liability, I guest).... They are happy to replace few components here and there. I preferred to buy a completed/finished build crossover.
