Frequency Response: 20 Hz- 30,000 HzCrossover Type: Electronic High Pass / Low Pass Filter RCA Input Sensitivity : 0.2V- 7 Volts 78 Watts RMS X 4 Channel @ 4 Ohms157 Watts RMS X 1 Channel @ 4 Ohms234 Watts RMS X 2 Channel @ 4 Ohms266 Watts RMS X 1 Channel @ 2 OhmsIncludes 100 Amp ANL Fuse and Fuse Holder And Remote Bass Control