A7s are obsolete basically (I had a pair of 'em in the 70s), as my experience as a current live sound tech has shown. For a fraction of what hifi stuff costs, you can get a pair of (for example) powered Mackie SRM 450s V2 (neo bass driver, etc.) and a powered 18" bass bin or two (out of business DJs sadly may be a good source for this stuff) for relative peanuts, and the sound quality can astonish...cleaner and better dispersed highs than any A7, much more robust drivers and bulletproof amps.
Audiophile system for Techno and Dance music
Hello fellow audiophiles. What would be your choice of speakers (and other components) for audiophile listening of Techno (!) and Dance music, in a moderate size room ?