The Aria RSB-618/4 is an electric bass guitar model produced by Aria, a Japanese musical instrument manufacturer. Although I don’t have specific information on this particular model beyond my September 2021 knowledge cutoff, I can provide you with some general information about Aria bass guitars.
Aria is known for producing a wide range of high-quality musical instruments, including electric and acoustic guitars, bass guitars, and other stringed instruments. They have a reputation for creating instruments that offer good playability, sound quality, and craftsmanship.
The RSB series from Aria typically refers to their line of solid-body electric bass guitars. The model number, RSB-618/4, suggests that this particular bass guitar may belong to the RSB series and has four strings. However, please note that specific details about this model, such as the body construction, pickups, electronics, and hardware, are not available beyond my knowledge cutoff date.