Lon; I am not sure; is the soundpax those little planars or do you mean the cardboard pyramid resonators? I have a pair of those I got with the T-Amp and they do pretty good out on the deck. Actually; I was ..Shocked..Shocked I say. Yes, months of research, even weeks. I have to check the site but the ones I saw are lttle square membranes that fold into a wallet sized case. My friend has the Eminent Technology computor speakers and they sound good with the T-Amp.