This machine is a 2A3/300B dual-purpose machine. After switching it with a switch, both kinds of tubes can be used. When the switch is connected to the transformer, a 2A3 tube can be inserted, and when it is connected to the panel, a 300B tube can be used.

The configuration of this machine is relatively high, and it comes standard with 2A3SE screen eggplant-shaped electronic tube, which is a 780 tube sold in the owner's shop. This machine is standard, not the ordinary 2A3C. Or you can choose the 300B model. The standard configuration is the Noble Voice 300B-n screen eggplant type. It is also not an ordinary 300B tube. The rectifier tube is upgraded to Noble Voice 5U4G. The push tube is still the Russian 6H8. Yes, if there are guests who want to upgrade, please contact the shopkeeper. The three filter capacitors and two coupling capacitors of the whole machine are made of German Mondoff products, and the cathode capacitors use Philips axial electrolysis, so you can rest assured that there is no need to upgrade. The front stage has a pass-through function, and it can be used as a power-end stage after passing through, and it can be used with other types of pre-stages by itself). The power supply cow adopts 114 Z11 iron core, and the output cow adopts 96 Z11 iron core, which is made of four clips and three windings, layers of paper, and yellow wax silk between groups; the waveform of the output cow is very beautiful, not inferior to AUDIONOTE, customers who understand can privately chat with the sender wave photo.

The sound quality of this machine is warm and delicate, sweet and pleasant. The new machine is on the market, there is no comment, you can refer to another model on sale in our store, this machine is an upgraded version. The sound quality of this machine is improved by 1, better control 2, and the sound is more oily and sweet. 3. Both 2A3 and 300B tubes can be used. The black seat is 2A3SE, and the white seat is 300B-N.