XHASM-FM is an Adult Contemporary radio station in Cuernavaca, Morelos.

Broadcasting on 107.7 MHz, XHASM is owned by Radiorama and carries its Éxtasis Digital format.

XEJC-AM 1340 was awarded to Eduardo Jiménez de la Cuesta, with a concession date of May 14, 1943.

In 1950, it was sold to Miguel Ángel Tenorio Benítez, and then in 1954 to Negocios Modernos, S. de R.L., also controlled by the Tenorio Benítez family.

Negocios Modernos expanded, founding XHTB-FM 105.9 (later 93.3) in the late 1960s.