Big Tweedy Drive effector with a yellow body and four knobs. - Model Name: Big Tweedy Drive - Brand: MAD PROFESSOR - Number of Knobs: 4 - Color: Yellow - Japanese Distributor: KYORITSU CORPORATION I am selling this item to organize my equipment. I believe this is a rare item, as it is currently difficult to find on the market. I used it in a smoke-free and pet-free environment. As shown in the images, there are few scratches, and the condition is good. It works without any problems. If you were looking for this, or if you are interested, please consider it. *I do not plan to lower the price at this time. Shipping will take 4-7 days, but I will ship it as quickly as possible if I have free time. The Mad Professor Big Tweedy Drive is a pedal that reproduces the sound of the high-powered vintage tweed amplifier, "Tweed Twin," which is difficult to find even in the original model. It has a fat and punchy mid-range, and a raw, sweet tone. It truly embodies the tone of American amplifiers from the late 1950s. Like a high-output vintage tweed amplifier, the Big Tweedy Drive allows you to control the tone with your fingertips, as if you were directly touching the sound. You can delicately control the gain with your picking attack and the volume of your guitar, so you can play a wide range of genres, from jazz, blues, rockabilly, and country to rock and roll.