Original Price: 69,800 yen (1975) Reference Page: https://audio-heritage.jp/ONKYO/amp/integraa-755nii_100.html In the NII series, to improve the separation of the integrated amplifier, the correlation between the vector analysis of separation characteristics and auditory perception was thoroughly investigated. The absolute value of separation was suppressed to a level where it could be sufficiently ignored, and the design was such that the phase rotation would provide the most natural sound localization. ▪️ The exterior shows scratches, dirt, rust, peeling, signs of use, and aging. Please refer to the images, including any scratches that may be difficult to see, and consider accordingly. ▪️ Input/output of each channel has been confirmed; REC and other functions have not been checked. Defects in unconfirmed parts are not eligible for returns or refunds. Please purchase only if you understand and accept no claims/no returns. ▪️ Product images were taken with a smartphone. The colors and condition may differ from the actual product. Please understand. ▪️ This is an item for sale of the main unit only. There are no accessories. The power cable is directly connected to the main unit. ▪️ We hope that those who understand used items and need them will use them with care. Thank you.