Condition:New
Type:Logic ICs

Split 2A3B single-ended tube amplifier

2A3 is an audio tube that enthusiasts have been obsessed with for decades. Specially made into single-ended Class A amplifiers, driving high-sensitivity speakers or horn speakers will leave a good reputation in the enthusiast circle, and even considered by many enthusiasts as the ultimate extreme fever weapon, because 2A3 is both in sound quality, sound effect, or musical sense. Can interpret the sound to the peak, because the sound of the 2A3 single-ended machine is natural and simple, delicate and transparent. Although it does not have the gorgeous color of 300B, 2A3 is close to the natural reproduction of the music style with high degree-is this not the pursuit of enthusiasts The original music style! Or there are more fans chanting that 2A3 has a musical artistic conception that does not eat human fireworks. No matter how mysterious and legendary 2A3 is, there are few finished machines on the market. Most of them are mainly DIY works. Why is this phenomenon? Because the power consumption of the 2A3 tube is relatively low, the power is naturally relatively small, only 3.5W distortion degree 5%RI: 800 ohms, if the output is accidentally not designed well, or do not understand the design, the internal resistance is too large, and the degree of coupling Deteriorating, when driving speakers with moderate sensitivity, they become weak and have too much distortion! Naturally give up if you are too straightforward and thin! In fact, the internal resistance of 2A3 is the same as 300B, and the distortion is the same! As long as the transformer is designed to drive the famous 35A speakers, there is no problem! Because the grid voltage of 2A3 is -45V, ordinary pentodes or U-tubes have a way to feed 2A3 at a low-distortion voltage range. Because the first-stage drive has lower phase shift distortion, the sound is more natural, and the pentode The tube is the best flavor tube of all audio tubes! The 6C6 push 2A3 launched by our store has excellent natural sound and full of charm! And 6c6 is also the push audio tube designated by Xidian WE to push 300B, both in gain and distortion are very good!

Machine parameters:

Electronic tube: American antique bile tube 6C6 (77.310)*2.

Tube: 2A3B (PSVANE) *2

Tube: 5u4g (PSVANE) Replacement: 274B.5Z3P, 5U4GB, *1

Power: 3.5W+3.5W

Distortion: 5%

Impedance: 100K (input). 0-4-8 (output impedance)

Signal to noise ratio: 88DB

Bandwidth: 30HZ----20kHZ-1DB

Weight: 14KG+14KG

Three-dimensional: 400*230*200mm (one channel volume)