It is the basic usage of E7, work as a portable headphone amplifer!
It have better sound quality than our E5, the increse includes:
1, The op change from OPA2338 to AD8692! 2, New circuit design! 3, More options of bass boost!
With OLED display, you can control the volume more easy, and with the 1050mAh battery, you will get far more better playtime! of course, it is bigger now! : )
below is the diagram!
It have better sound quality than our E5, the increse includes:
1, The op change from OPA2338 to AD8692! 2, New circuit design! 3, More options of bass boost!
With OLED display, you can control the volume more easy, and with the 1050mAh battery, you will get far more better playtime! of course, it is bigger now! : )
below is the diagram!
