ACM the first major advance in vented box subwoofer design in decades.
ACM is a patent-pending, unique hybrid design that combines the attributes of direct radiating and band-pass configurations to reduce distortion and increase sound pressure output while decreasing box size.
ACM technology utilizes a unique hybrid configuration in which two woofers share a common vented chamber. One woofer’s frontal radiation is direct, while the second woofer is set at 90 degrees and drives a bandpass vented chamber that has fourth-order response characteristics. Each woofer has its own amplifier and DSP control. This sophisticated combination of physics and DSP yields a substantial increase in amplitude over conventional designs, with the summed output of drivers and vents maintaining flat phase response and exhibiting low distortion, while occupying a more compact enclosure.