Đèn Ngang Cấp Đầu HiFi HiEnd Rod Rain Audio PCB Classic Soft Feel Tube Preamp Kit Dải Âm Thanh Rộng Mở Rộng Tối Đa Âm Thanh

The chassis does not contain potentiometer. You need to buy a high-pressure field effect transistor in the kit separately. All other accessories are brand new and original!

The field effect transistor used for spare parts is an original disassembly plate, as are other sellers, all tested and shipped!

In view of some shortcomings of the traditional Marans 7 circuit, Japanese Hotan Mao improved the Marans 7 circuit, the improved circuit is called Hotan Mao's circuit. Its main feature is to replace the cathode follower of Marans 7 circuit with SRPP circuit. Since SRPP output stage does not have any voltage amplification effect, it is only used as a buffer stage, and its driving load capacity is stronger than that of ordinary cathode output devices. In terms of timbre, it maintains the medium frequency sweetness of Marans 7 line, its analytical force and high-frequency response are better than that of Marans 7, and the signal-to-noise ratio is relatively higher. The electronic tubes used in this circuit can also be switched to 12AT7 ｡

the product does not need debugging and is easy to install. The PCB is double-sided sunk gold, and the resistance is Japanese KOA optical sound Digital, which is better than Beijing 718, because Beijing 718 is not a real military resistance! Coupling is German Siemens the kit contains 2 6Z4 rectifier tubes, note that four enlarged pipes are bought independently. 2 ECC82 and 2 ECC83 are selected for 4 amplifier tubes

product Supply voltage:

AC 210V--0 (high voltage range can be 200-260V), 6V--0 , 12.5 V--0 three groups of voltage

normally, those who have heard of electronic tubes will no longer be interested in playing the front class

PCB size: 115*145mm