American Acoustic Development C -11 - Manual (Page 3)

proprietary 10” drivers, the C-11 produces clean, powerful and controlled bass.
Three large rear-firing vents ensure ventilation of both driver and amplifier for cool
running at high power. The vent's large bore and “gas flowed” cross-section reduces
air turbulence that causes audible distortion.
Please refer to Fig. 3 (Front control panel) and Fig. 4 (Back panel) for functions on
C-11 Subwoofer amplifiers
Functions and Connections