Oblicuo Hi-Fi Bar sits in Gracia with the system treated as part of the room, not decoration. The bar runs on Giorgio Di Salvo bespoke HI-FI, built around a three-way main system, Altec-style horn design, Alnico drivers, JBL 075 supertweeters, tube amplification, and Class A amplification. The DJ booth is built around a Condesa Carmen rotary mixer with Technics SL1210 turntables and bespoke Giorgio Di Salvo monitors. That gives Oblicuo a serious base without turning the place into a gear showroom. The system looks built for tone, scale, and controlled volume rather than nightclub force. The acoustic work is part of the character of the room: heavy isolation, sound-absorbing panels, and a customised Vicoustic system designed to respect Barcelona's 90 dB music bar policy. That helps explain the restraint. The room can carry weight without needing to bully the tables. The music programming moves across downtempo electronics, avant-jazz, house, ambient, dub, post-rock, experimental records, and selector-led nights. There is a Japanese jazz kissa influence, but this is a Barcelona version: natural wine, cocktails, sake, late hours, and a room that still allows conversation. Walk-ins only. Best for an early seat near the system, a slower midweek listen, or a late Gracia night where the records matter as much as the drink.