Vacuum Tube Structure
If the buyer follows the physical point-to-point wiring diagram we provide, the finished product will have virtually no noise or AC hum.
It uses a 5Z4PA for rectification, a Shuguang 6G2P for the preamp stage, and Shuguang 6P3P or Soviet 6N3C for the power tubes.
Tube Upgrade Guide:
Rectifier Tubes: 5Z4P, 5U4C, 5AR4, 5Z3P, 5U4G, GZ34, etc.
Preamp Tubes: 6SQ7, 6SL7, 6SQ7GT, 6G2P, etc.
Power Tubes: 6L6, 6V6, EL34, 5881, 6N3C, etc.
The amplifier operates in Class A with a power output of 15W (2x7.5W), equivalent to approximately 30W–80W of solid-state amplifier driving power.
Regarding whether it can drive your speakers: This depends on room size and personal listening volume preferences.
Explanation on Power Output and Speaker Compatibility:
Single-ended tube amplifiers typically have power outputs ranging from 3W to 30W (common range). Because they operate in Class A, their load-driving capability is stronger than that of solid-state amplifiers. Even a few watts can effectively drive most speakers (except those with low sensitivity).
The demonstration video for this product features the amplifier driving a pair of 5.5-inch bookshelf speakers rated at 2x1200W in a room over 20 square meters, with the volume set at 50%—already very loud!
Tube amplifiers deliver excellent performance when paired with good speakers.
Those who have heard the sound of the 6P3P will likely never forget it—transparent, grand, stable, with rich bass. Whether it's male or female vocals, classical, pop, or jazz, the 6P3P handles everything with ease.
6P3P Tube Amplifier Kit:
A classic high-end 6G2P driving 6P3P, with 5Z4PA rectification, Class A tube amplifier.
The circuit is mature and reliable, and assembly is straightforward and user-friendly.
Please note: This kit requires basic knowledge of radio electronics and hands-on soldering skills.
Specifications:
Frequency Response: 13–33 kHz (-3dB)
Total Harmonic Distortion: 1.5%
Signal-to-Noise Ratio: ≥93dB
Power Consumption: ≤80W
Input Impedance: 100kΩ
Input Sensitivity: 0.8Vrms
Output Impedance: 4Ω, 8Ω
Dimensions: 35x24x15cm
Friendly Reminders:
1. DIY tube amplifier assembly requires foundational knowledge. Our store provides circuit diagrams, physical point-to-point wiring diagrams, and comprehensive technical support. With care and patience, success is achievable.
2. Our products are DIY kits. The stainless steel chassis is manually bent, and the side wooden panels are hand-sanded (wood is in its natural color; buyers may paint or finish according to preference). Perfection is difficult to achieve. For any feedback or suggestions, please contact customer service—we will do our best to assist.
3. This tube amplifier does not include a power cord or audio cables. Due to varying quality and individual preferences, we recommend buyers source these accessories themselves.
4. The vacuum tubes are from last-century stock. Brands may vary based on inventory, and component upgrades or substitutions may occur without prior notice.
5. We inspect all components as thoroughly as possible before shipping. As long as the buyer follows the assembly diagram for point-to-point wiring, the amplifier will produce sound.
Note: This is a handcrafted custom product. Once soldered, returns or exchanges are not accepted. Placing an order implies acceptance of these terms.
