Beyond Tube Buffer + Vacuum Tube Buffer Purchased new and used only once, connected to an HX Stomp. Used for about 5 minutes. After that, it was carefully stored, so the product is in near-new condition. By passing the sound through the vacuum tube, the sound becomes thicker and closer to analog, and even single notes become clearer and more distinct. This is a guitar buffer equipped with a vacuum tube. It features a "Tube Boost Volume" to add "vacuum tube sound." At minimum volume, it's "input 1: output 1," adding a "vacuum tube-like sound" while maintaining a clean sound. At maximum volume, "amplification by the vacuum tube" is added to the sound, transforming it into a brilliant and three-dimensional sound. Furthermore, it elevates the sound of various effects connected after it, adding sound pressure and stickiness, resulting in a richer, higher-quality sound. It also has a tuner out. The foot switch, which is not included in current models, makes it easy to use. Equipped with an Electro-Harmonix vacuum tube (12AU7 EH). Compact size despite being equipped with a vacuum tube. Main out/Tuner out switching via footswitch. Tube Boost control for setting vacuum tube gain. Uses carefully selected parts, such as audio capacitors and metal film resistors. True bypass switching system. The LED under the vacuum tube lights up when turned on. Type: Electric Guitar