Jinyinlai 9300B Vacuum Tube: The Ultimate Expression of Audio Art

The Jinyinlai 9300B vacuum tube is meticulously crafted by veteran designers with 40 years of expertise in the audio field, with every detail reflecting a deep understanding and relentless pursuit of audio artistry.

Advanced Technology and Design

This vacuum tube incorporates the company’s patented nano-carbon anode material, featuring a nanoscale structure akin to a dense network of highways, allowing electrons to flow efficiently. This results in exceptionally fast heat dissipation and stable current output, effectively reducing signal loss and distortion during transmission. The patented design of square anodes with openings on both sides is a stroke of genius for heat dissipation, further accelerating heat release, ensuring stable operation, and laying a solid foundation for accurate sound reproduction.

The unique triple mica design acts like a sturdy fortress, not only stabilizing the internal structure of the tube and preventing component displacement due to vibrations, but also leveraging mica’s excellent insulation properties to shield against electromagnetic interference, delivering flawless, pure sound quality. The company’s exclusive cathode formula and advanced coating process significantly enhance cathode emission capability, providing robust current output to effortlessly drive various high-end audio equipment.

Outstanding Sound Quality

In terms of sound quality, the Jinyinlai 9300B vacuum tube is truly exceptional. Its tone is warm and rich, reminiscent of a fragrant cup of coffee under the afternoon sun, with every note exuding deep emotion and a sense of intimacy. The precision in detail reproduction is extraordinary—listeners can clearly discern the subtle tremolo of an instrument or the delicate breath changes of a singer, as if transported to a live music scene. With a wide dynamic range, powerful notes surge like crashing waves, delivering an intense impact that ignites passion, while soft notes are like a gentle breeze brushing petals, tender and nuanced, transitioning seamlessly to fully showcase the rich layers of music.

Real User Feedback

Countless users have raved about their experiences. Veteran enthusiast Mr. Li shared excitedly, “Switching to the 9300B vacuum tube transformed my audio system—it’s like a rebirth. The sound layers are distinct, instrument positioning is precise, and the sense of presence is overwhelming. Listening to music has become an immersive delight.” Music producer Ms. Wang also gave high praise: “Using it in professional recording equipment, the recorded audio is pure and natural, perfectly preserving the original charm of the music, infusing soul into my work, and significantly enhancing audio quality.”

Choosing the Jinyinlai 9300B vacuum tube means opting for a top-tier audio experience, opening a new door to the world of music.

Product Images

Product Specifications

Maximum Ratings

• Anode Voltage………………480V
• Anode Dissipation Power…………45W
• Cathode Current
  • Self-Bias…………………100 mA
  • Fixed Bias………………70 mA
• Interelectrode Capacitance
  • Input Capacitance……………………9PF
  • Output Capacitance……………………4.3PF
  • Plate-to-Grid Capacitance……………………15PF

Static Parameters

• Ua…………………………300V
• -Ug……………………… 60 V
• Ia…………………………60mA
• Gm…………………………5.5mA/V
• Ri…………………………0.7 KΩ
• μ…………………………3.85
• Pout………………………6.6W

Recommended Parameters

Limit Parameters

450–100–96.5————60

Typical Operating Parameters – Audio Amplifier – Class A1 Amplification