This is my latest build of the 300B SET amps. It uses 300B power tubes and the 6E5P powerful driver. The output transformers are the highly praised Hashimoto. The amp is transformer coupled early Western electric style. The interstage transformers are the LL1671 also from Lundahl, Sweden. The audio path is well thought and all components are of high quality.
The power supply section was designed with great care. This minimizes impact on the sound quality. Each 300B filament has its own regulated supply. The driver filament is DC regulated. The high voltage supply has plenty of reserve. It has a very low ripple, using the 6CJ3 tube rectifiers and a CLCLC filter.
The amp is built in a very sturdy aluminum chassis. Dave at Landfallsystems designed it. The front and sides are wrapped in Peruvian walnut. The amp dimensions are 19x14x9 (WXDXH), and weigh about 48 lbs.
This amp is a very good choice. It is ideal for anyone seeking a 6W SET DHT amp. This amp uses one of the most praised direct heated triodes of all times. The input sensitivity is 1.5Vrms for full power output. The speaker output is optimal for 8 ohms, but I can rewire for 4 or 16 ohms if needed. The amplifier was built to last, and tested and broken in for 48 hours. It is listed as a product as well.