Fisher´s XP speaker series from the mid 1960ies to 1970ies are even today of interest due to their decent manufacturing, materials and sound quality. The company´s shift to produce less expensive, non-high fidelity speakers started around two decades later in the early 1980ies. The Fisher XP-7 speaker entered the US market in 1966 when Fisher decided to stop the production of their older models XP-1A, XP-2A and XP-4A.
This pair is in amazing shape since my uncle mounted them in a custom bookshelf when brand new in 1968. He was a classical music buff so they never got abused sonically too. Wanted badly to use them with large TV sound system but chose a big Sony sound bar to save room. It is a three-way speaker system that contained a total of four speakers housed inside of two mid-range units and then sealed into sub-enclosures. With dimensions of 14" x 24 1/2" x 12" the XP-7 is one of the heavier speakers at approximately 45 pounds. It had a free-piston design as well as two five-inch mid-range speakers that were sealed into separate sub-enclosures. AcoustiGlas was used to fill the enclosures. The drivers are encased in a walnut cabinet with a perfect classic mesh grills. Last set on E-bay sold for $350 plus shipping$$$. This set can also be a good investment. Tuned for records, but will faithfully produce any source.
First $100 takes home the best overall speakers for that kind of money.