inputs.text: lost one channel amp year updated review - share experience amp well sounded excellent worked 11 months installing front right channel popped stopped working channels continue operate properly sad part wasnt even cranking amp decided lose channel attempted amp warrantied pioneer stated amazon not authorized seller no warranty applies guess car amplifiers one things youd better sure youre getting warranty sad part still think best amp class variable high low pass filters great amp stays relatively cool sound best far came two different lesser powered sony amps amp powering older 65 component alpine type rs running sony head unit working properly amp definitely not weak point system update 31114 able get amp warrantied seller caraudiocloseoutvery good customer service three months since replaced amp everything working great would suggest purchasing squaretrade warranty decide purchase amp give sort protection becomes defective also purchased pair polk audio components push amp installed shortly continue update review time pleased sound quality raising rating 1 star new amp lasts couple years raise another star