This is Roland's high quality reissue of the classic Jazz Chorus from the 70's. This was part of a limited series of 350 amps they reissued, with this being #154/350. These are revered for their smooth clean tone and great headroom, along with that signature Roland chorus sound. Here's a quote from the manufacturer about this limited edition -
"A Special Version of a Very Special Amp To express our gratitude to all the loyal Roland customers throughout the world, we’re pleased to present the JC-120 Jazz Chorus Roland 50th Anniversary Limited Edition, a special collector’s version of the classic JC-120 Jazz Chorus amplifier. A true legend in music history, the JC-120 has been in continuous production since 1975 and is Roland’s longest-running product. Offering the inspiring “JC clean” tone and immersive stereo chorus of the standard model, this special release features a natural cherry wood finish, dark-gray grille cloth material, and a commemorative badge with a hand-engraved serial number."
