Two high-excursion drivers, each measuring 10 inches, are built into a compact enclosure that is light and easy to transport

Polarity switch to adjust polarity of subwoofer. Selections are NORM and REV. Reversing polarity allows for easy correction of low-frequency overlap between the main loudspeaker and subwoofer

Line output EQ sets the F1 Subwoofer’s output to a high-pass filter or full range, which allows for easy crossover selection when used with a main loudspeaker

F1 Model 812 extension bracket is a unique bracket integrated into the subwoofer. This bracket can be raised and lowered by the end user, allowing the F1 Model 812 loudspeaker to be safely mounted to the subwoofer. The bracket eliminates the need for a conventional pole mount or tripod stand