This late in the game - yes its as close as your going to get, the woofer has been discontinued for 15 years or more :-), The stock one the P17 was very popular way back when which is why ScanSpeak still makes it. It was the woofer I used in my first commercial product, the Montana 2.
www.pbnaudio.com
Best of luck
Peter
www.pbnaudio.com
Best of luck
Peter