This is the amplifier section of the Bad Cat Mini Cat Ⅱ. The sound is excellent, but the birch wood used for the amp case is heavy, and the speaker has a large diameter. Therefore, I planned to remove it from the amp case and move it to a smaller cabinet to make it easier to carry. It was taken out from the amplifier in image 5. Even in this state, sound will come out if you connect it to a cabinet with a speaker cable. The Mini Cat Ⅱ is a Class A, Point-to-Point wired tube amplifier, ideal for relatively low-volume studio recording. It uses 12AX7 x 2 for the preamp tubes and EL84 x 1 for the power tube, allowing you to get a good tone in your bedroom without worrying about your neighbors. Controls: Volume, Gain, Bass, Treble, Master Line out, speaker selector (4, 8, 16Ω) included Manufacturer URL: http://xxx-triplecross.com/badcat/minicat.html It is likely to be one of the few valuable amplifiers made by Mark Sampson, who passed away this year.