Original OPA 3A - 300B Single Ended Tube Amplifier

The ORIGINAL tube amplifiers impress with their stylistic simplicity with modern accents and their sophisticated circuit layout. The two tube amplifiers OPA 2S and OPA 3S are timeless in design. The particularly elaborate and shapely tube protection round off the design experience. The controls for everyday use are located on the top of the case.On the left is the switch for the operating status and the source selection, on the right side is the volume control.At the front are only the selection switch for operation via loudspeakers or headphones, the centrally located operating display, and the signal outputs for balanced or unbalanced headphones. The power tubes are high-quality tubes from the premium manufacturer Psvane. On the back, the OPA 2S and OPA 3S are available, each with a conventional RCA signal input and a balanced XLR input. In addition, the two devices have a Bluetooth interface, including aptX LL support, to connect your smartphone or tablet computer to the tube amp. T