Fullmusic Premium 845sl Vacuum Tube 845/CNE 845/Q Upgrade Edition Vintage HiFi Audio Tube AMP DIY Factory Match Luxury Box

The SL series is an upgraded version of the Q series and the CNE Heavenly King series. The Q series and the CNE Heavenly King series have achieved remarkable results. As an upgraded version of the SL series, it will naturally strive for excellence and meet your higher pursuit of listening experience.

The 845SL adopts a unique material developed and designed by oneself, a special metal screen coating, and a lightweight screen design, making its mid to high frequencies more transparent and elegant, and its low-frequency diving deeper. The 3-frequency performance is excellent and balanced, with almost no short board.

Overall, the SL series embodies Mr. Liu's unique understanding of electronic tube design, material application, and manufacturing technology over the past few decades. It does not abandon the tradition of electronic tube technology, design concepts, and material application, but also does not blindly adhere to outdated and self proclaimed principles. It is not an exaggeration to say that this 845 is comparable to the 845 of Meixi Electric. Welcome to compare and comment.

SL series product features:

There are currently 845SL, 805SL, and 211SL varieties available on the market; Other models are under development.

The anode substrate is made of special metal materials with a natural resonance frequency of 0.2-0.3mm (slightly higher), ensuring the beautiful and full sound in the mid to high frequency range, while also taking into account the sound production needs of various frequency ranges.

The alternating sound source signal of the gate does not induce excess electrical signals inside the anode, reducing noise in physics.

The special coating on the anode surface can continue to improve the vacuum inside the tube during use, reduce the probability of electrons colliding with residual gases, and achieve the goal of reducing noise again.

The increase in vacuum inside the tube during use can also extend the service life of the electronic tube.

The special coating on the surface of the anode can increase its thermal radiation ability and enhance its overcurrent resistance. Curve of vacuum degree change in electronic tube during its lifespan