TOA FB120B 12" Subwoofer APS-C [DC] Main compartment features an UltraFlex™

Main compartment features an UltraFlex™ panel that folds down to create more space for personal gear and less camera gear

Longer tabs clearly marked with the size and color make for easy shopping handling and insertion

Operating Temperature (Minimum): 32 F

which are equal to fluorite

Furthermore

TOA FB120B 12" Subwoofer APS-C [DC] Main compartment features an UltraFlex™The FB 120B is a compact, indoor use subwoofer system employing a high power 30 cm (12") woofer. It is designed for use in conjunction with TOA's HX 5 series or other full range speakers, and is particularly ideal for reproducing dynamic low frequency sound for both permanent and temporary installations. Power Handling Capacity Continuous pink noise: 200 W Continuous program: 600 W Impedance 8 Sensitivity 90 dB (1 W, 1 m) at installation in free sound