When you add up all these capabilities you quickly arrive at the fact that it's the most versatile and easy to use reverb amp available.. And remember its from Sansui where it's all Hi-Fi. Specifications. Frequency response: 20 to 20,000Hz. Input sensitivity: 1mV (mic), 20mV (guitar), 150mV (source/tape) Total harmonic distortion: 0.05%.. 1970's Sansui RA-500 Reverb Amp. This Hi-fi Amplifier brings that classic 70's reverb warmth in a cool wood grain design. Everything works and sounds great. It features a reverb in and out and a tape deck player as shown in the pictures.Specs:Rated output voltage: 300mVMaximum input voltage: 3VHa.
Data. General. Manufacturer: Sansui Model: RA-500; Type: Reverb amplifier; Years of manufacture: 1977 - 1986; Made in: Japan; Color: Silver, wooden cabinet; Power.. The RA-700 reverb amp is a head-turning component to add to your stereo stack. All lamps replaced recently. Place it in between your tape deck and receiver to add genuine spring reverb to your programs.. Sansui RA-700 - Reverberation Amplifier. Used - Very Good. New Price $125 + $18 Shipping. This piece of gear has sold. View similar gear.