Hi migueca,
Not sure if this will help much but I own a Cayin A300P, the sibling to the 300B. So similar except a push-pull design with two pair of 300Bs and output of 20w.
Based upon mine I consider Cayin products to be very well designed and built. With that they represent great value in the world of 300B amps. Mine drove Cain & Cain BENs and produced a wonderful, musical midrange. They were great down to the upper bass, a little below 60 Hz, but I attribute the fall off below that to the speakers, not the amp.
So I moved on from that system. I tried the Cayin with my hybrid Janszens but it does not have quite enough power for a wide range of music, that includes big band and symphonic. Mine is now unused so I should get rid of it, but I consider it a great amp when matched with the correct speakers.
Not sure if this will help much but I own a Cayin A300P, the sibling to the 300B. So similar except a push-pull design with two pair of 300Bs and output of 20w.
Based upon mine I consider Cayin products to be very well designed and built. With that they represent great value in the world of 300B amps. Mine drove Cain & Cain BENs and produced a wonderful, musical midrange. They were great down to the upper bass, a little below 60 Hz, but I attribute the fall off below that to the speakers, not the amp.
So I moved on from that system. I tried the Cayin with my hybrid Janszens but it does not have quite enough power for a wide range of music, that includes big band and symphonic. Mine is now unused so I should get rid of it, but I consider it a great amp when matched with the correct speakers.