El Más Allá is a hi-fi listening bar and restaurant in Old San Juan, built around food, cocktails and close listening rather than loud-room hospitality. The room works across digital, CD, cassette and vinyl playback, which gives it a wider format than the usual vinyl-only bar. The space is intimate, with acoustic design, walnut furniture and sound equipment treated as part of the concept. It reads as a listening room with dinner service, not a restaurant borrowing hi-fi language for atmosphere. This is the Puerto Rico entry to prioritise: small, specific, music-conscious and useful for people who want recorded music to shape the meal rather than fill the silence.