Infinity RS IIIB (1985–1986)
Floorstanding speakers produced by Infinity for a short run in the mid-1980s.
Overview
The Infinity RS IIIB is a pair of floorstanding speakers made from 1985 to 1986. Manufactured by Infinity, they were offered at an original price point near $1,200 to $1,500 per pair. Designed for home audio use, these speakers feature a 10-inch woofer and are rated to handle between 50 and 200 watts of power. They measure 48 inches in height, 18 inches in width, and 7.75 inches in depth.
Specifications
| Product type | floorstanding speakers |
| Woofer size | 10" |
| Power rating | 50-200W |
| Dimensions (H x W x D) | 48" x 18" x 7.75" |
| Production years | 1985–1986 |
Market
Current asking prices for the Infinity RS IIIB range from $200 to $300. Common maintenance includes refoaming the woofers and recapping the crossovers,
eBay Listings
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.