Atlantic Technology Compact Theater System Two PBM (CTS2PBM) is a high-performance powered subwoofer designed to deliver deep, accurate bass in a compact and versatile package. With its built-in 150-watt Class G amplifier and long-throw 12-inch woofer, the CTS2PBM can produce a peak SPL of 105 dB and a useful working frequency range from 20 Hz to 150 Hz.

The CTS2PBM features a unique Dual Diversity Crossover (DDC) system that allows for precise integration with a wide range of speaker systems. The DDC system includes an adjustable 12 dB per octave low-pass crossover and a fixed 24 dB per octave "voice filter" at 180 Hz. This design ensures that the subwoofer reproduces only the lowest frequencies, eliminating any possibility of out-of-band information being audible and making the subwoofer localizable.