Is it idiotic to stack an amp and tuner directly on top of a CD player?

Whipsaw - I like hifiman's suggestion to try the Herbie's Tenderfeet in your non-ideal arrangement.  The owner's manuals often recommend a minimum amount of space around a given piece of gear.  I doubt you will get that space even with the larger Tenderfeet but at least check what the recommendations are.   Be that as it may,  if it were my gear, I would NOT put the amp on the bottom.  That's the piece that likely needs the most ventilation and in that bottom position will also be serving to heat up the gear above it - even with the air-space provided by the Tenderfeet.  If worried about too much weight on the CDP, I'd go with Amp on top and CDP in the middle position.  Use the corners of the CDP to position the Tenderfeet since the case corners will be the strongest "load point" and possibly have adequate rigidity to prevent the warping someone cautioned about.  

I have a Yamaha A-S1000 integrated amp (48.5lbs) sitting on top of a Yamaha CD-S1000 CD/SACD player(33.1lbs).  No air vents to worry about with player on top of amp.  Feet are positioned about 1 inch off the corners.  So far no reason to think any ill will come from this.  What do you think?

Thanks,
Bill

Thanks ghosthouse. As it happens, the Electrocompaniet EMC-1UP that I own is remarkably heavy and solid. I can't imagine that it would have any problems holding even both Accuphase components.

I actually have had both sitting directly on top of a well-made Dennon CD player with no noticeable adverse effects over about year, and the EMC is far more solid and robust.

But, as you say, far from ideal. I suppose that I should consider a dedicated stand, but the vintage wooden table is both very stable and beautiful.

@whipsaw I am a little confused by your original cd player on bottom proposal because isn't the EMC-1UP a top loader? And I would be wary of putting anything on top of your Accuphase if it's a class A amp it really needs adequate ventilation.

Gottasay, since you've got good gear AND experience with Salamander and Herbie's product, it seems like you already know the answer!;)