Monitor Audio IV140 Invisible In-Wall Speaker Vinyl Accessory Use one subwoofer or two

Use one subwoofer or two for both channels

The C2L page also lists the CL-B pre-construction bracket

MM Phono and Flexible Analogue Integration

Hear the artist's intent

Monitor Audio IV140 Invisible In-Wall Speaker Vinyl Accessory Use one subwoofer or twoMonitor Audio IV140 Invisible In Wall Speaker Invisible architectural speaker designed to be installed into the wall or ceiling and finished over, leaving no visible grille in the completed room. IV140 is for projects where the loudspeaker itself must disappear from view. Once installed and finished correctly, the visible room surface remains uninterrupted, which makes it useful in design led interiors and spaces where conventional grilles are