Deaf Bonce Apocalypse AAK-180.4 4-Channel 180Wx4 RMS @ 4-Ohms Class-AB AmplifierBRAND NEW DEAF BONCE AAK 180. 4 APOCALYPSE 4 Channel 180W x 4 RMS @ 4 Ohms Class AB Car Amplifier Key Features: Model: AAK 180. 4 Class: AB Number of the channels: 4 Frequency response: 20 20000 Hz 2 Ohm RMS Power (14. 4 V): 250 W x 4 4 Ohm RMS Power (14. 4 V): 180 W x 4 4 Ohm RMS Power (Bridge): 500 W x 2 Minimum permissible load on the channel: 2 Ohm Minimum permissible load in a bridge connection: 4 Ohm Input SPL: 0. 2 6 V Low pass filter: 50 800