In addition to helping reggaetoneros and traperos reach new heights, música urbana has also given rise to a promising new class of R&B singers. Formerly of the duo Jayma & Dalex, the latter joins that movement in a major way with the release of Climaxxx, a romantic and, at times, raunchy solo album debut. Candid by nature, he shoots his shot with a prospective lover with effusive praise and explicit sexuality on “Hola.” With his heart very much on his sleeve, he pledges fidelity on “Pa Mí” with Rafa Pabön backing him up. Proven hitmaker Nicky Jam and Dalex’s Rich Music labelmates Justin Quiles and Sech all join in for “Cuaderno,” an instantly memorable posse cut.