15" is deep enough

I personally think amps should sit on the floor between the speakers and like them to be deep and narrow.

Schoenberg is too deep for me. 

Over 9" is already too deep technically LOL!

@sbank only if they say McIntosh on the side. :)

Sheesh! About 12-13 years ago our amps were a design that was about 28" deep.

Dealers didn't like them as they didn't sit on shelves well, which really isn't where they were intended to sit.

Apparently a lot of people liked the look, so much that we've gotten orders for amps built that way now (google Atma-Sphere Silver Edition for an example).

Can I turn my amp sideways to avoid prosecution? 

It's not the size of the shelf,  it's what's on it !!!!!!!

Now I really feel inadequate,
shelf wise.

Subject- 15" is deep enough....! 

And that's what my partner said on the first night...............when she had a look at my equipment...........................while leaning on the audio shelf! Mwahahahaha

Sorry, I just couldn't help myself.

Well then, you get my vote ...

Chrono:

I excluded speakers. :) I am a despot, but not crazy. :)

How would your (well-intentioned) law apply to horns I wonder?

All is good!

Good luck with that one.

I've been there. So, I built my "final" rack, and made sure that the bottom shelf was 22" deep to handle those mono blocks that I would someday possess. Well, my "final" mono blocks turned out to be 15" deep. - LOL
Kenny

I would be a little more lenient, say 18 inches. Though I get the point you are making,.
As far as being the benevolent despot goes, I would make it illegal for cable manufacturers to make a speaker or interconnect cable that cannot bend less than a 3 inch radius. (I'm looking at you Transparent!).