Dayton 6.5"      
100 hz 500 hz 1000 hz 2000 hz
720 hz   burst 1000 hz burst 1400 hz  burst 2000 hz burst
FOCAL 7NV4411B 7" SHIELDED      
100 hz 500 hz 1000 hz 2000 hz
720 hz   burst 1000 hz burst 1400 hz  burst 2000 hz burst
Vifa M17-SG09      
100 hz 500 hz 1000 hz 2000 hz
720 hz   burst 1000 hz   burst 1400 hz  burst 2000 hz  burst
Vifa  PL18WO-09-08      
100 hz 500 hz 1000 hz 2000 hz
720 hz   burst 1000 hz  burst 1400 hz  burst 2000 hz  burst