Fosi Audio T20X MKII Vacuum Tube Amplifier

Fosi Audio T20X MKII Class D Integrated Amplifier

 

Fosi Audio T20X MKII is a compact, high-power desktop hybrid vacuum tube amplifier and headphone amp.

It builds upon the original T20X design by upgrading the core internals to deliver substantially more power and improved Bluetooth codec support.

 

Product details

• High-Performance Chip, Outstanding Sound Quality 
  The T20X MKII Bluetooth amplifier features the TI TPA3255 high-performance digital amplifier chip, delivering a maximum output power of 150W×2@4Ω with a signal-to-noise ratio (SNR) of ≥102dB and a frequency response of 20Hz-20kHz(±1.2dB). Equipped with the QCC3031 Bluetooth chip, it supports Bluetooth 5.1 lossless transmission with a range of ≥15m (barrier-free) and compatibility with multiple transmission formats such as SBC/AAC/aptX/aptX HD/aptX LL, ensuring stable and high-quality wireless audio transmission. 
• Classic Vacuum Tubes, Warm Sound Enjoyment 
  Powered by Soviet 6Ж2П vacuum tubes, it delivers a unique warm and rich sound. The vacuum tubes feature a glass enclosure and precision internal structure, effectively enhancing the sound quality and depth, providing a true-to-life listening experience with HI-FI quality. 
• Convenient Bluetooth Connection, Stable Wireless Transmission 
  Supporting Bluetooth 5.1 lossless transmission with ultra-low latency (≤50ms) and exceptional clarity, it ensures audio and video synchronization for a smooth and natural wireless listening experience. The QCC3031 Bluetooth chip offers superior connection stability, reducing signal interference and transmission loss to guarantee the integrity and accuracy of audio data. 
• Compact Design, Suitable for Various Scenarios 
  With compact dimensions of 122×137×41mm and a weight of only 1060g, it is suitable for home use, desktops, and other scenarios. Its small size and powerful performance make it ideal for both home theater systems and desktop audio setups, providing high-quality audio support. 
• Versatile Interfaces, Flexible Connections and Expansion
  It is equipped with a variety of input and output interfaces, including 1 Bluetooth input (QCC3031 chip), 1 RCA input, 1 passive speaker output (4-8Ω), 1 3.5mm headphone output, 1 pre-output (pre-out), and 1 power supply input (DC24-32V). This allows for compatibility with passive speakers, headphones, and other devices, meeting the needs of different music systems and enabling flexible system configuration. 

 

Specifications:

• Model: T20X MKII

• Power Adapter: 32V/5A, DC Input Range: 24-32V

• Headphones Output: 16-300Ohm

• Terminating Impedance: 4 Ohm - 8 Ohm

• MAX Power Output: 150W x 2

• SNR ≥ 102dB

• Amplifier Chip: TPA3255

• Frequency Range: 20Hz - 20kHz (±1.2 dB)

• Input Mode: Bluetooth and RCA

• Bluetooth Chip: QCC3031

• Bluetooth Version: 5.1

• Bluetooth Range:≥15m (barrier-free)

• Bluetooth Codecs: SBC/AAC/aptX/aptX HD/aptX LL

 

Frequently Asked Questions (FAQs)

What is Fosi Audio T20X MKII used for?

It is used for high-quality music playback, home audio systems, desktop setups, and headphone listening.

Does it support Bluetooth?

Yes, it supports Bluetooth 5.1 with aptX HD and low latency codecs.

What makes it special?

It combines Class D amplification with vacuum tube warmth for hybrid Hi-Fi sound.

Can it power passive speakers?

Yes, it supports 4–8Ω passive speakers.

Does it support headphones?

Yes, it supports headphones from 16Ω to 300Ω.

Is it good for desktop use?

Yes, it is compact and ideal for desktop Hi-Fi systems.

Does it include a power adapter?

Yes, a 32V/5A power adapter is included.

Is it suitable for audiophiles?

Yes, it is designed for high-fidelity listening with detailed sound performance.