Specifications:
Circuit Board Dimensions: 100 x 80 mm
Outer Dimensions (without case): 110 x 90 x 40 mm
Outer Dimensions (with case): 215 x 132 x 55 mm
Circuit Board Material: Double-Sided 1.2mm FR-4 Board
Power Supply Voltage: AC Dual 12V
Weight: Without case: 122g | With case and amplifier: 850g
Signal-to-Noise Ratio: 105dB
Amplification Factor: Approximately 0.8x (earphone output supports high-sensitivity headphones)
Supported Devices: Compatible with MP3 players, mobile phones, tablets, and computers

Note: This is a DIY kit, you need to assemble and solder.

Features:
1. High Fidelity Sound Output
Equipped with 6J1 vacuum tubes, this amplifier delivers clear, natural audio output, ensuring a premium listening experience for audiophiles.
2. Wide Device Compatibility
Compatible with various devices including MP3 players, smartphones, tablets, and computers, making it suitable for multiple use cases.
3. Upgraded Circuit Board Design
Utilizes high-quality FR-4 double-sided boards, ensuring stable operation under diverse conditions for enhanced signal performance.
4. Optimized Amplification Function
Earphone output supports high-sensitivity earphones and can drive certain advanced audio systems, providing versatility in audio usage.
5. User-Friendly Structure
Compact design with clear casing allows easy assembly and visual interaction with internal components, appealing to DIY electronics enthusiasts.

Package Included:
1 x HIFI 6J1 Tube Amplifier DIY Kit