By PA, do you mean "personal audio", or "public address" system? If you say "home gym", you probably mean the latter... if so, you can easily outgun a half-dozen exercise machines with some classic Klipsch - going from smallest to largest in size, skipping the obscenely large stuff: Heresy(I/II) / Quartet / Forte(I/II)... also dozens of models of JBLs - lots used in gyms and live venues, several wall/ceiling/post-mount options.
Vibrations? Skip analog, go digital... perhaps even use a wall-mount turntable shelf for your CD-player (carousel?).
At worst (at best?), maybe some pro-audio stuff - like powered monitor speakers (Mackie et. al.), and just a source / pre to drive them?
Vibrations? Skip analog, go digital... perhaps even use a wall-mount turntable shelf for your CD-player (carousel?).
At worst (at best?), maybe some pro-audio stuff - like powered monitor speakers (Mackie et. al.), and just a source / pre to drive them?