FMR AUDIO Recording Compressor RNC 1773 (E) This is the (E stamp) version of the FMR Audio RNC1773, which has been specially tuned. This model is a Japan-exclusive high-quality model, and it was sold in limited quantities with the op-amps used in the internal analog circuits upgraded to high-quality, low-distortion ones. It is in perfect working order and in beautiful condition with no noticeable scratches! AC adapter included. No box. Please check the images for details. We hope you understand that this is a used item.