The RNC1773e compressor is a high-performance audio device with adjustable knobs for improving sound quality. [Product Description] Brand/Manufacturer: FMR AUDIO Model Number: RNC1773 E Other: [Condition] Usage: Used for streaming and recording [Other] Chip replaced from NORMAL. The old chip is also included. Sidechain functionality has not been confirmed as there is no way to check. There were no particular problems during normal use. Please check the photos for the condition of the unit. Thank you for viewing.