A:AnswerThe pre-amp works well with my turntable and receiver. It is connected with RCA plug cables between the turntable and an alt input on the receiver.
A:AnswerIf your turn table has RCA audio out, you can connect that to the RCA inputs of the preamp then the RCA outs of the preamp the other end goes to any RCA audio input on your powered speakers.
A:AnswerI'm not familiar with the Sonos port but the PP555 is a pre amp designed to amplify the turn table. So you connect the RCA outs from the turn table to the RCA inputs of the PP555 and the RCA outs connects to any Aux input on yur JVC.