Check the listing for details. Soundstream RN4.1400D Rubicon Nano Class D 4 Channel Car Amp Amplifier 1400W Max. Condition: New. Listed at 179.99 USD. WELCOME TO DISCOUNT CENTRAL ONLINE Business hours: Monday - Friday 9am - 5pm / Saturday, Sunday and Holidays we are Closed. Technical Details: Soundstream Car Audio Class D 4 Channel AmplifierModel: RN4.1400DPower Rating:Max Power: 1,400 WattsRMS Power 4Ω: 125W x 4RMS Power 2Ω: 175W x 4RMS Bridged 4Ω: 350W x 2MOSFET Power Supply w/ Audiophile Grade IRTM TransistorsHybrid Aluminum Alloy Heatsink for Optimum DissipationDirect Short, Thermal, & Overload Circuits Protect AmplifierQuick disconnect high level input wire harness includedLow Pass Filter: 50Hz-500Hz / (x10) 500Hz-5KHzHigh Pass Filter: 50Hz-500Hz / (x10) 500Hz-5KHzBass Boost: 0-6-18dB (Rear)Bass Boost Frequency: 45Hz (Rear)Subsonic Filter: N/AFrequency Response: 10-50KHzS/N: 104dBInput Sensitivity: 200Mv-6VTHD: