AIYIMA T20 Fully Balanced Hi-Fi Tube Preamplifier

Your desk. Your music. Your tube amp.

The AIYIMA T20 is a compact hybrid tube amplifier that combines the warmth of vacuum-tube pre-amplification with the efficiency of a Class-D power stage. With Bluetooth 5.0 streaming, multiple inputs, a replaceable tube design and strong output power, it’s ideal for desktop setups and small home audio systems.

• Hybrid Tube + Class-D Design: Vacuum tubes deliver warm, smooth tone while the Class-D power stage provides efficiency and clean output.
• Replaceable Vacuum Tubes: Supports 6J1/6J4/GE5654/6AK5 tubes for easy sound-tuning and upgrades.
• Bluetooth 5.0 Wireless Streaming: Stable, high-quality wireless audio connectivity for phones and tablets.
• Multiple Inputs: Bluetooth, AUX, and USB-DAC options depending on the model version.
• Powerful Output: Capable of driving passive bookshelf speakers for a compact hi-fi setup.
• Aluminium Alloy Chassis: Durable metal body with a compact footprint suitable for desktops.
• Bass & Treble Controls: Front-panel knobs allow easy tone adjustments to match your speakers.

• Model: AIYIMA T20
• Amplifier Type: Hybrid tube preamp + Class-D power amp
• Output Power: 50 W × 2 (4 Ω); approx. 25 W × 2 (8 Ω)
• Tubes: 6J1 (replaceable with GE5654 / 6AK5 / 6J4 etc.)
• Bluetooth: Bluetooth 5.0
• Frequency Response: 20 Hz – 20 kHz
• THD: ≤ 0.03%
• Signal-to-Noise Ratio: ≥ 98 dB
• Inputs: Bluetooth, AUX (3.5 mm); some variants include USB
• Outputs: Speaker terminals, subwoofer output (dependent on version)
• Power Supply: 24 V / 4.5 A
• Dimensions: Approx. 120 × 98 × 33 mm
• What's in the Box:
  • AIYIMA T20 amplifier
  • Power adapter
  • Two vacuum tubes (6J1)
  • User manual