Power amplifier with 300B single tube and 6SN7 bi-triode, which was featured in Analog magazine and highly acclaimed.
Although the output power is only 7W+7W, it produces a surprisingly loud sound, and the density of the sound image is high for classical music, and the thickness and luster of the genres are enchanting. The pop music was highly acclaimed for its strong and hot beats, and the vocals were rich and plentiful.
The 300B single-tube and 6SN7 bipolar power amplifier has been featured in Analog magazine and has received high praise.
Classical music has a high density of sound image, and the thickness and luster of the genres are fascinating, while jazz is played with texture, richness, and density of instruments, creating a sense of presence in the venue. The pop music was highly acclaimed for its strong and hot beats, and the vocals were rich and plentiful.
The circuit is characterized by AC ignition, so some hum can be heard in the 38cm high efficiency speakers, but to maintain the sound essential, AC ignition is used to reduce noise to the extreme. (Even the vacuum tube characteristics)
The OUTPUT transformer is used in our own amplifier. The amp is designed to have a sound similar to the forgotten sound of the Showa era, but without the distortion of iron, so that saxophones and pets do not run out of breath. Most of you may think that this sound is fresh and new, but it is a natural sound that we have achieved through trial and error to exceed the sound left behind by our predecessors.
It is the product of many prototypes and listening experiments with electrical circuits, with an emphasis on vocal expression, particular attention to sound, particular attention to parts, and particular attention to transformers. Good sound requires a good sound separation, clarity, and rise of sound, but depending on the listener, it may be said to be 50 steps or 100 steps.
This is the word of the creator of Yoshishiba Acoustics. Please do it!