Shhh is a deep listening room and bar at 99 Records in Condesa. The venue is explicit about the social contract: low voices, no phone calls, no laptops, no moving furniture around, and walk-ins only.
That makes the room unusually clear about what it wants from people. You can drink there, but the listening etiquette is not hidden behind soft branding. Seats are assigned by group size, conversation is kept low, and the room is set up for people who are prepared to pay attention.
Listening-session listings at Shhh have referenced modified Altec VOTT speakers and Manley amplification. Until the venue confirms the permanent chain, the safer read is simple: Shhh treats sound and behaviour as part of the same system.