The Ibanez RS520 was a Roadstar II Deluxe model electric guitar made in Japan from 1984 until 1985. It had HH pickup configuration with 2 IBZ humbuckers - mounted in gold pickup rings. Both the humbuckers could be coil tapped via two push-push Duo Sonic switches. The RS520 had an Ibanez Pro-Rock'r tremolo and locking nut. The ones made in 1984 had a birch top on a basswood body - but by 1985 the body was entirely basswood.