【Overview】 ・This item is a repair and restoration of a junk item from approximately 45 years ago. Although all functions have been confirmed to operate normally, it is being sold as a junk item due to its age. Occasionally, there are people who make claims unrelated to basic functionality and demand a return, but we hope that those who appreciate the value of old, repaired items with a retro feel will consider purchasing this item. 【Product Description】 Product: Integrated Amplifier Manufacturer: Pioneer Model Number: SA-4400 Release Date: Around 1979 Price: 24,800 yen 【Appearance】 ・The front panel is very clean and has no rust, but there is some slight rust visible on the top of the chassis. There are no dents. 【Repairs and Adjustments】 ・Disassembly and cleaning of the preamplifier board and power amplifier board ・General inspection of the main amplifier circuit ・Repair of the main amplifier circuit (HIC replacement) ・Pilot lamp and glass tube fuse replacement ・Cleaning of function keys, volume, etc. 【Operation Check】 ・This is a typical entry-level model from that era. ・All functions, including the PHONO equalizer amplifier, are operating normally. 【Sound Quality Check】 ・The noise and distortion are low enough to be unnoticeable to the ear, and I feel that it sounds very good for an amplifier from about 45 years ago. 【Accessories】 ・None 【Reference】 https://audio-heritage.jp/PIONEER-EXCLUSIVE/amp/sa-4400.html