I believe this guitar amp was released quite a while ago. "Park" was a budget brand of Marshall, and the sound quality is the same as Marshall's equivalent series (old Marshall)! It's better than a mini amp for home practice. I've turned all the knobs, and there was no scratchy noise, it was in good condition! The equalizer works wonderfully, allowing for a wide range of sound creation (personally, I liked the sound when I turned down the mids). Gain x 2 controls the distortion level. Master volume adjusts the overall volume. It's easy to use for beginners and those seeking the sound of the good old days! Available for immediate purchase. Shipping in a 100-size box via Rakuraku Mercari.