13310-201 Explosion Proof Loudspeaker Speaker Driver 30 Watts 16-ohm.

Specifications
GAI-Tronics Model 13310-201 compression driver is designed to provide optimum performance in industrial applications.
This compression driver is commonly used in heavy industrial facilities with high ambient noise and corrosive, or explosive environments.
Power handling capacity: 30 watts continuous power
Impedance: 16 ohms (voice coil)
Frequency response: 400 Hz to 3500 Hz (+6 dB)
Sensitivity: 104 dB SPL: 1 watt @ 1 meter, swept sine average
Conduit attachment: Standard 1/2 inch NPT (1.27 cm) pipe conduit
Dimensions: 8.45 (214.6) diameter × 8.86 (225) long including throat, inches (mm)
Shipping weight: 12.8 lbs. (5.8 kg)
Material: Die cast aluminum housing
Finish: 1 to 1.5 mil epoxy, gray
Horn coupling: Standard 1-3/8 inch (3.5 cm) – 18 threads
Approval: UL listed [E71922] for Div. 1, Class I, Groups B, C and D, Hazardous Gas Areas
Origin: USA