Amps on top?

This high end  fellow I know has a huge old heavy very thick solid cherry bookcase cabinet modified for a large screen in center, four monoblocks in it at bottom center.  A pre pro, two Richard grey power centers there 220 volt. At the very top left and right hand corners about 7' off floor are two monoblocks German high end amps 220 volt I believe or two cords on each. Before this he had his arc 750's up there. Also a high end turntable was in there. His ancillary gear is in a rack on left of room.  No room treatments whatsoever. 18 by 18' 12' ceiling.  Two huge JL audio subs sit next to cabinet, two huge base towers and tweeter towers out front. He had 5 dacs, the best being  a Berkeley ref 3.  Damndest thing you ever seen.  

Is there any other reason appart from weight and speaker cable length?

@ghasley I designed the stand.   I've been working in an industry dealing with vibrations for over 40 years.  I know those selling other things have talked down steel and many have read their marketing.  I wish them luck. 

Jerry

I hit the lottery and bought a used BDI rack for $100.     It is heavy gauge steel and Birch ply.    It is strong.   I have my tube amp on the top shelf ,  plenty of space around it.   Preamp is below , with a shelf removed so it has plenty of space to breath too.  DAC, tuner , streamer are all on separate shelves.    Everything stays cool,  as cool as tubes can be I guess

     Things got very crowded after the divorce shrank my listening room.

     The amps were on top, until I started Jonesing for my vinyls and TT.

      Had the scrap metal, 1/2" Corian, a huge granite leveling table, mill, lathe and welder at hand, so: figured I could probably come up with a way to straddle the two subs that were built to stand vertically, next to the Acoustats, for which I used to have room.

       All I had to buy was the 1" granite, felt for between that and the Corian, the powder coating job and 8 brass nuts, to lock the adjusting spikes that I turned out of 1/4-28 SHCSs, into the legs.

        Posted the result in my system pics.

        Haven't dusted this year (is it Spring yet?) and: the wallpaper was there when I moved in*.                                   

                                                             *:

                                                 Happy listening!