Yamamoto Sound Craft YDA-01 DA converter

Simple circuits and careful power supply circuits, DAC devices are LR independent configuration

The output side of the DA converter IC is a current output. The DA converter IC used in this unit, the PCM1794A, also has the current output of the operating circuit. The conclusion that the simplest circuit and the fewer elements passing through, the better the sound quality, the circuit used was a single transistor base grounded and a single-feedback output circuit. It is a very simple structure in which the current output is converted into a voltage using only one transistor and one resistor, and also serves as an output circuit. This circuit makes the sound very natural, giving it a fresh, dynamic sound.
Two PCM1794As are used as the DA converter IC in mono mode to achieve the best performance.
The DA converter IC uses the high-performance PCM1794A in mono mode, one L/R channel each, to obtain a powerful sound with para-connection that does not interfere with the channel.

By supplying it from a separate regulator circuit, it eliminates interference from the circuit due to the power supply
The power transformer uses a large capacity toroidal transformer, and the analog and digital windings are independent, reducing interference between each other. The transformer is a careful power supply circuit that is independently used for the digital, analog, and output circuits, and is supplied from individual regulators. The wiring material is made of Teflon insulation and silver-plated copper wire, which are extremely reliable and have excellent sound quality.

*Made to order. Depending on the ordering situation, delivery may take around 3 months.

We would like to pay attention to the simple circuit configuration of one transistor, a careful design that operates in mono mode with one L/R, a large-capacity toroidal transformer installed in the power supply, separate windings into digital/analog/outputs, and the careful power supply circuit that supplies the IC power source from individual regulators.
The YDA-01, which focuses on simplification and power-up, has a refreshing and sophisticated tone, and has a clear, rich sound. The range is wide enough, and the response is uniform and smooth in any band of energy. The texture and aftertaste of the boy soprano's voice are delicately depicted, and this is probably a characteristic of the sound quality. However, not only is it delicate, but it also has a powerful, powerful feel, and in jazz, it plays the wet bass and drums with a heavy feel. However, even in such cases, it never gets rough, and the essence of this machine is that it has a quiet atmosphere based on its fine resolution. That's why it's only natural that the nuance of the guitar stands out and the sound is precise. The tone of the strings is neutral and has no exaggeration, and it captures quiet but subtle tone changes without any effort. And there is a lot of excitement that spreads around. This does not cause the sound to bleed, but the nature of this lingering effect also shows. In the orchestra, the soft touch and moist sound of the string instruments give you a sense of calmness and firmness. And depending on the sauce, it fully demonstrates its sharpness and vivid color. Or even on a Fazil Sai piano, it responds sharply to fast-moving touches, and each note is very clear. It is clear that the realism of the sound image and the spatiality on the stage enhance the realistic feel of the touch. The beauty of the chorus, the thick resonance, and the firm presence of the focus, which is rich in flesh but not blurry, are also well-represented in the precise reproducibility. This gives the music itself a vivid look and attracts the listener.
*STEREO SOUND