The Solina String Ensemble, also marketed as the ARP String Ensemble, is a fully polyphonic multi-orchestral synthesizer with a 49-key keyboard, produced by Eminent BV. It was distributed in the United States by ARP Instruments from 1974 to 1981. The sounds it incorporates are violin, viola, trumpet, horn, cello, and contrabass. The keyboard uses 'organ style' divide-down technology to make it polyphonic. The built-in chorus effect gives the instrument its distinctive sound.

ARP Instruments, Inc. was a Lexington, Massachusetts manufacturer of electronic musical instruments, founded by Alan Robert Pearlman in 1969. It created a popular and commercially successful range of synthesizers throughout the 1970s before declaring bankruptcy in 1981. The company earned a reputation for producing excellent sounding, innovative instruments and was granted several patents for the technology it developed.