APPJ Single End 6J1 + 6P6P Tube Amplifier Board Class A Power AMP Hifi Vintage Audio Assembled Board

New update The appearance is updated from March 6 2021 Specifications Assembled solder freeDriver tubes 6J1x2PCSPower tubes 6p6pPower output 3W 3W 8ohmFrequency response 30 40KHz 1dB Input sensitivity 550mVSignal to noise ratio 80dB 3WInput power 85 264VACPower consumption 40WInput impedance 10K ohmOutput impedance 16ohm 8ohm 6ohm 4ohmPackage dimension 12 21 17cmPackage weigth 1 5KG Note The self made shell must be opened with sufficient heat dissipation holes preferably 50 of the shell area at least 30 otherwise it will affect the service life Package Included 1 x End 6J1 6P6P Tube Amplifier Board