I'm not certain but I seem to remember the Amator crossovers were done with all inductors. There were no capacitors used.
The design goes back to the earliest days of speaker building but some time ago someone in the US patented it then offered speaker upgrades using this interesting all coil principle, then seemingly dropped of the radar.
The design goes back to the earliest days of speaker building but some time ago someone in the US patented it then offered speaker upgrades using this interesting all coil principle, then seemingly dropped of the radar.