DRAWMER DS201 dual gate, a used item from a classic model. The "DS201" is a model that truly became synonymous with DRAWMER and noise gates, as it was the first in the world to realize "frequency detection operation." Loved by engineers around the world, it has become a standard in studios and SR (sound reinforcement) settings. The op-amps used are also high-speed 072s, giving it a professional sound different from consumer-grade equipment. PS: The current DS201 has XLR connectors, but this unit has phone (TRS) connectors. It has been maintained, so it currently works properly, but there is crackling in the RANGE control of ch2 if moved while audio is passing through. It seems to be fine if not moved. Therefore, I will consider it slightly defective. Also, changes in components, etc., in the future are inevitable... Please understand. There are also scratches and faded lettering. I have cleaned it, but I've done it moderately because the lettering is likely to disappear. Thank you for your understanding. I believe this unit was manufactured in February 1991. It has a 120V tap, but I have confirmed that it operates at 100V. I was looking for a manual, but I could only find the current model's... I will attach it just in case.