inputs.text: not good used - bought amplifier 2 years ago using every day sincethe things likethe construction solid seeminglycolor coollots audio optionsthe things suckthis amplifier not headroomi alpine cda117 4v outputs highquality connectors turn gain higher would like getthe output needi jl audio w3v3 500w 10 woofer custom sealed box build boxes living highquality 34 mdf 15 baffle internal bracingthis amp powers sub like 100w amp think yes sub 2 ohmi subwoofer setting radio max gain amp past 34 well past 4v supposed volume radio 80 even sub clearly bottoms even starts bouncingto make sure sub good hooked old 300w infiniti kappa amplifier pounded hard forgot turn settings radio back normalas far setup goes ive got 220 amp alternator right belt size really draws 220a kinetik battery 0 gauge ofc yes real ofc going straight amp three 0 gauge grounds strut towersone battery one engine block one alternator chassisand everything properly sanded ensure proper conductivityso issue setup amplifier suppose amp could defective really think 150 doesnt buy good ampi research buying everybody said would good reference 4 channel fine high hopes amp id bet amp would sound good 200w rms woofer not setupand open case reconnect rca inputs came undone installing cables first timebe careful not twist terminals installing cables