91 Circuit improved 300B parallel tube single-ended tube amplifier power amplifier 15W+15W without large loop feedback design! It is different from those manufacturers that do not have enough output design in the market. They use large loop feedback and boast that it is a low-distortion design. In fact, they can see through it at a glance! Many fever magazines often say that the sound of the parallel 300B is not fine enough and the texture is not strong enough. In fact, the above are all wrong. In fact, the single-ended tube amplifier power amplifier has stronger penetrating power, and the complementary single-tube 300B has the disadvantages of weak low frequency and thin intermediate frequency. It gives people the feeling of maturity and vicissitudes, just like the British speaker KEF. It is clear after the rain, and the strong musical taste of 35A is unforgettable!
parameters:
Tube model: 300B*4 (new original noble voice HI-FI gold feet paired in pairs), 6*8*2 (new Soviet original box direct escrow 6sj7). 6P6P*2 (new Dawning original box direct generation Tube 6V6), 5Z2P*2 (J-level direct surrogate 5Y3, 2748, 5Z3P can only use 1)
Transformer model: power transformer 600W (133*80 Red Bull Sands core) output cattle: *2 (96*50 British Red Bull Sands), choke coil: (86*50 Red Bull Sands)
Power: 15w+15w
Input impedance: 100K
Bandwidth: 30HZ-------------------42KHZ(-1DB)
Signal to noise ratio: 89db
Weight: 25KG
Size: 400*280*18mm
