ðə swˈɑːp wʌz dˈuː tə bˈoʊθ fˈɔːɹmæts bˌiːɪŋ ɪn klˈoʊs pɹɑːksˈɪmᵻɾi tə kəmpˈɛɾɪɾɚ stˈeɪʃənz wɪð ˈɔːlmoʊst ðə sˈeɪm fˈɔːɹmæts ˌɛksˌiːkjˈuːˌɛfˈɛm ænd ˌɛksˌeɪtʃdˈiːˌɛfˈɛmˌɛfˈɛm, æz wˈɛl æz tə kˈiːp ˌɛksˌeɪtʃˌɛfˈoʊ ˌɑːpɚɹˈeɪʃən ɪn dʒˌiːˌɑːɹsˈiːz hˈændz, sˈɪns ɡɹˈuːpoʊ sˈaɪət tɹˈaɪd tə ɹᵻklˈeɪm ɪɾ ˈæftɚ "lˌæ zˈiː" hæd bɪkˌʌm mˈɛksɪkˌoʊ sˈɪɾiz tˈɑːpɹˈeɪɾᵻd stˈeɪʃən.
The swap was due to both formats being in close proximity to competitor stations with almost the same formats (XEQ-FM and XHDFM-FM), as well as to keep XHFO's operation in GRC's hands, since Grupo Siete tried to reclaim it after "La Z" had become Mexico City's top-rated station.