Price reduced. I've been buying and selling self-made Kenta clones on Mercari until I got one I liked, and this is the one I kept until the end. In my personal opinion, I think it's better than the Sumo. The Sumo has a harsh high-end. This one has a rich, mellow mid-range. I'm finally selling this one because I bought a high-end clone. This is perfect for experiencing why the Kenta is so popular as a booster.