KORG TNB-1 TONE BOOSTER This is a used KORG TNB-1 TONE BOOSTER. It's a popular, Japanese-made vintage effector. The number available is decreasing. Good condition units with no issues in sound are selling at high prices. Currently, they seem to be priced around 19,000-25,000 yen online. It starts to distort heavily from around the 3 o'clock position on the GAIN knob. It can be used widely, from a clean tone booster to deep distortion, and it works effectively for everything from light crunch to grunge. You can check the sound on YouTube. It's in used condition. Contents: Main unit only There are scratches and paint剥がれ. Battery and adapter operation have been confirmed. Currently, there might be some minor crackling, but there are no operational problems. #KORGTNB-1 #TONEBOOSTER #VintageEffectors #Effectors #MadeInJapan #IslandGuitar #sherpaxjr