The BT-1 employs a membrane system that effectively converts frequency fluctuations typically found in corners into selective absorption within the modal frequency range. In studio control and listening rooms, where poor low-frequency response and significant emphasis on modal resonances are common, the BT-1 offers targeted solutions. Tuned to a frequency of 40 Hz, it covers approximately 1/3 octaves above and below the tuning frequency, ensuring high bass absorption efficiency. Its stackable construction allows for versatile placement and configuration. The BT-1 can be conveniently installed either freestanding on the floor or securely mounted to any 90° corner using the supplied hardware. With dimensions of 23-5/8" in width, 23-5/8" in length, and 12" in depth, it features a triangular shape, with each side extending 15-1/2" from the 90° corner along the mounting wall. All components are Class A Fire Rated, ensuring safety and compliance.