Well, how would 14" or 14' change your recommendations? Neither would be at ear level so even if you were recommending something with an angled tweeter or baffle the recommendation would stay the same, wouldn't it? He said he just wants decent sound, nothing high fidelity so whether at 14" or 14' it should work fine. I would assume it is 14" or he has a petty high basement!

And how in the world would speaker height affect amplifier requirements?