Can I go for stamping before location change amendment approval

Hi Friends, My H1B petition got approved on 2016 October for client ABC . On December my client and location got changed and now I’m working for client XYZ. My LCA has been certified with new location and Location change amendment has filed on in June 2017 and waiting for approval.I came to know that it takes 4 months to get the approval. Can I go for stamping now ? Is location change amendment approval required for visa stamping or amendment acknowledgement is enough ? Kindly help.