That is crazy, I never knew about that. That is definitely an RLA system with a Bozak, Acoustilog units, and a DBX 500! I have family in Spain so this brings a smile to my face.
It's funny to hear Huey Lewis and Miami Sound Machine on that system!
Musically speaking, Spain was always a little behind in the times really until it became part of the Euro zone -- that's not a knock on Huey, I love me some 80's new wave. But the Franco regime really set Spain back from accessing global culture until later than say Italy, France, Netherlands or Germany. House music would have had a hard time making it over there in the 80's. The Saturday Night Fever soundtrack was still big in Madrid in the 80's. Barcelona was always the most cosmopolitan city though, so it makes sense that there would be a market for a high-end system in a club.