SPECIFICATIONS: RAGE 600.4 Frequency Response:10 Hz ~ 25 KHz Signal to Noise Ratio:>90 dB Input Sensitivity:6 V ~ 0.2 V Crossover:24 dB / Oct High Pass Crossover :20 Hz ~ 5 KHz Low Pass Crossover:50 Hz ~ 5 KHz Band Pass Crossover:50 Hz ~ 5 KHz Bass Boost Frequency: Damping Factor:>250 Power Terminal gauge:4 GA x 1 Fuse Rating:60 A Operational voltage:9 V ~ 16 V Dimensions: 9" x 5.6" x 1.9" In / 23 x 14.2 x 4.9 cm Power @ 4 Ω 14.4v < 1% THD:4 x 100 w Power @ 2 Ω 14.4v < 1% THD:4 x 160 w Power @ 4 Ω bridge 14.4v < 1% THD:2 x 320 w