ITEM NAME:Amplifiers Audio DC 12V TDA7379 38W+38W Stereo Amplifier Board AD828 Preamp Z8R3 Amplifiers Audio DC 12V TDA7379 38W+38W Stereo Amplifier Board AD828 Preamp Z8R3 Features: 1.Name: Amplifier Board 2.With fever-AD828 preamplifier 3.Preamp input and output coupling capacitors Promise of capacitors fever, better than the polarity effect. 4.Power amplifier chip:TDA7379 + AD828 Power supply :DC9-17.5V Output power:38W+38W Board size: 50*33mm color: red Material: metal + pc Package Contents:1* TDA7379 Audio Amplifiers.Power amplifier chip:TDA7379 + AD828. Preamp input and output coupling capacitors Promise of capacitors fever, better than the polarity effect. Board size: 50 33mm.