The average price of the popular Roland Jazz Chorus JC-55 amplifier is about $364, based on about 20 recent sales, as of 2016. Made in Japan, the series of JC-55 solid-state amplifiers has remained popular in America since 1975. In the 1980s, musicians liked the series because of its sound.
The controls on the JC-55 include two channels for clean sounds and effects, including stereo chorus, vibrato, reverb and distortion. It also features high and low inputs. The 50-watt amplifier speakers are smaller than some other models at 2 by 8 inches. The JC-55 series can sometimes be found on eBay and other auction sites, including Effects Freak.