The parts are much nicer than those included with the Heathkits and Hafler kits I built 35 years ago. The only things that seemed not to be direct from Japan are the tubes: two from China and two Electro-Harmonix power tubes from Russia. This is a real kit from a first-world country not offshored junk from God-knows-where. This is a very high quality amplifier from Japan, loaded with very high quality domestic Japanese parts. The instructions are super clear and everything is packed logically to make finding everything super simple and fast. There is over-current protection for the power tubes, and even they have individually FET-filtered B+ supplies.
AMPKIT FEEDBACK DRIVER
The three transformers (power and two output) are inside the steel case, and the driver tube heaters run on DC. While this modern kit has a solid glass-epoxy circuit board, solid-state power supply and automatic tube biasing circuits, the audio path is 100% classic vacuum tube. Tube amps and electronic kits were huge 50 years ago because you assemble it yourself, which is fun and saves a lot of money in the process.
When a solid-state amp alters the sound, it's always for the worse, while the whole point of a tube amp is the euphonic distortions it adds. The TU-8200 is the best-sounding amplifier I've heard short of a McIntosh MC240, but most amplifiers have no sound of their own to hear. This is a semi-integrated amplifier with two or three line-level inputs, an input selector and a volume control with loads of gain you don't need a separate control amplifier or preamplifier unless you need more inputs (use a selector) or are stuck in the 1950s and need tape head or raw phono pickup inputs. The Elekit TU-8200 from TubeDepot is a classic single-ended class-A vacuum tube power amplifier kit.
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