The Puerto Rican DJ and producer Caleb Calloway is one of Latin hip-hop’s more interesting figures, with a languid, sonically dense sound that draws heavily on his biggest loves: techno and house. (He scored a spot opening for Tunisian producer/DJ Loco Dice in 2014.) Though he works with top urbano talents—including Rauw Alejandro, Anuel AA and Manuel Turizo—Calloway’s feet remain firmly planted in the underground.