I posted to general forum. Re-wording this one. I recently purchased four 808-8A drivers, on horns. Two of them came with 809-8A crossovers. Two came with, "Wave Instruments 1200 Series crossovers". I know from your tech library where the 809-8A's cross. I have no idea where these other ones cross. It would be a shame, to have been lucky enough to acquire these awesome horns, and then ruin them with to low a frequency. Thanks for any information on these other crossovers. I have been all over the net looking, and found nothing.