Have you looked into the monoprice monolith portable? Seems to be a sleeper and they are in stock.welp. the TC popped up on amazon with 4 units and gone in ~24h. They were $450 even too. already paying a premium at $360 for something that measures poorly and has little power for it's size. Sigh. Sucks. The Q5S TC was very enticing for also having bluetooth.