Model No. FT100 FC100 FS100 TSSUB300 Application Front Center Sat SUB Woofer Tweeter 1"* 1 1"* 1 1"* 1 Mid-Range 4. 2"*1 Woofer 6. 5"*1 4. 2"* 2 4. 2"*1 6. 5"*1 Impedance 4Ω 4Ω 4Ω Max Power 150W 110W 70W 100W Sensitivity 85+/-3db 83+/-3db 85+/-3db Frequency Response 35HZ-22KHZ 80HZ-28KHZ 80HZ-25KHZ 20HZ-160HZ Crossover Frequency 400HZ 5600HZ 6750HZ 5700HZ Magnetic Shielding No Yes No No