Thank you for viewing. This is a catalog for the Showa-era Sansui preamplifier and power amplifier. It's a fairly old catalog and has been stored at home for a long time, so there are some scratches and stains. (Please check the attached photos.) ① Preamplifier (C-2301) November 1984 ② Power Amplifier (B-2301L, B-2201L) December 1985 This is a very valuable catalog now. Please understand that this is a used item, and if you are interested, please consider purchasing it.