Purchased over 30 years ago from a local musical instrument store. This amplifier has been a close companion in my band activities for a long time, but I'm putting it up for sale because I'm switching to a head and cabinet setup. I often practice at home without an amp, and I mostly used the studio's amp for band practice. I only brought it out for live performances, so, just a feeling, but I think the wear and tear on the vacuum tubes is low for its age. I did some basic cleaning, but as it's an old amp, please judge the condition from the photos, and refrain from purchasing if you are concerned about dirt, scratches, or crackling in the volume. I checked the operation before listing it, and confirmed that it powers on and functions normally, but as it's a used amp, there is crackling in the volume. Due to the crackling, the volume may be unstable depending on the position of the volume knobs, but it seems to return to normal when the knob is moved to increase the volume. If you are looking for perfect operation, you may need to replace the volume pot. The sound has an easy-to-handle power, and I think it's very good that you can adjust it to your liking with the compression feel unique to vacuum tubes, 2 volumes, and a 5-band graphic equalizer. You can switch between normal and drive gain with the included footswitch. The weight is approximately 15.7kg as measured on a household scale. I think it's on the lighter side for a vacuum tube amp, but due to the weight, I will ship it with the buyer paying the shipping costs. I will include the footswitch and operation manual (Japanese) that came with the purchase. At the time of purchase, three-phase power plugs were not common, and the store confirmed with the distributor and used it with the ground pin cut off, but I later obtained a three-phase conversion plug and used it, so I will include that as well. - Brand: Mesa/Boogie - Model: STUDIO-22 - Accessories: Footswitch, Operation Manual