What is the max theoretical throughput of the 802.11ac wireless technology when using wave 1 devices? ?

Answer is 1.3 Gbps

When using wave 1 devices, the physical rate or the maximum theoretical throughput is 1.3 Gbps. Wave 1 products have been used for about two and a half years now. It has however been overtaken by wave 2 devices which builds upon Wave 1 and supports speeds of up to 2.34 Gbps up from 1.3 Gbps in the 5 Ghz band.