Okay, the knobs are not the best, you should know that. BUT! There is a huge BUT! The quality, the sound. The fxxking sound of the device. That's a real quality diode bridge compressor for the fraction of the price of a Neve Compressor. Also the AIR & Termination switches are a huge advantage. For this price, you will never get anything close. Also 2 units can work as a Bus Compressor or as a Leveling & Peak compressor like an LA-2A & an 1176. Try them 'cause they are great!