I could be wrong but I believe that ca 2000 was the last year for the big AX-1090. The smaller integrated amps lived on for a few years, the AX-892 dropped out after 2004, the AX-596 and AX-497 in 2006. The last of the separates were the CX-1/CX-2 pre's and MX-1/MX-2 power amps, they lasted until 2000 and afaik were the last separates made for home use. The profi stuff I don't know.
Cheers,
James