Well ! The tall Mcintosh speakers are the XRT26 !
There are twenty six tweeters in each column. There are two main cabnets (trashcans)that hold two 12" woffers and 1 8" mid range ,the tweeters column connect here.
The small cube speakers (on each post) are Bose they were disconnetced 12 years ago......then I purchased real speakers. This is 25 years of Mcintosh happiness it all started in 1967 at Radio shack with a mono tube amp... There is a 32 kw generator in case or power outage