This is a very rare speaker system by McIntosh. These were a top of the line McIntosh speaker system. Each of the line array speakers columns consists of vertical arrays of 30 4-inch cone midrange drivers and 25 1-inch soft-dome tweeters; the bass drivers are in two separate enclosures, each containing two 12" woofers. This is one the best speaker system ever made and purely designed for listeners who appreciate the ultimate in uncompromised performance and built quality. The performance of these speakers is to be experienced. The speakers are in exceptional condition. Comes with speaker grills.