Hi, my four ADS 910 woofers are numbered\labeled\stamped:
4576, 8 Ohm, 10
4476, 8 Ohm, 10
4376, 8 Ohm, 9 or 6 (the 9 or 6 is circled)
See attached pics.
I'm pretty certain using the "a/d/s parts schedule 1992 share" on http://sportsbil.com/ads/ that the woofers in my ADS 910's are not ADS...