The ALF series subs are designed to provide deep bass with incredible sonic quality in a discreet enclosure that can easily be built-in to compliment any loudspeaker solutions, taking up zero floorspace. The ALF 100 is our most recent High Output addition to this line, utilizing the best in speaker and cabinet design. Available in 2 versions, SM for "on-stud", and CV for alternate multiple mechanically isolated mounting options, the ALF 100 SM is designed to fit within standard 2 x 4 construction of ceiling and wall structures, with a face panel "flange mount" system that allows the installer to install direct to the studs, replacing drywall or other substrates to the wall or ceiling finishes. The slotted port is easily hidden below or behind cabinetry, within architectural detail or adapting them to HVAC venting for 100% concealment. A proven performer, it delivers smooth, musical bass right down to 30 Hz (-6dB)