A Ttsunami Classic 5. I couldn't find any changes - except the speaker (which is no good) and the preamp tube? With the tone control I would see it as a quite exact copy of a Princeton 5F2a.
Why is the cathode cap still lying on the resistor (which sometimes has 400 and sometimes 470 ohms).
Meanwhile, there is the Memphis Mini, which has the same basis. Take a look there.