Tom Lyle of EnjoyTheMusic.com reviewed Stromtank S2500 detailed:

“…The genius behind the creation of the Stromtank is none other Wolfgang Meletzky, the founder, and former chief designer at MBL back in the day. Anyone even slightly familiar with this German luxury high-end audio manufacturer will recognize it as a company that doesn’t cut any corners when designing and building their gear. And so, it goes without saying (but I’ll say it anyway) that the Stromtank is a component built with what seems like obsessive exactitude, and I’m apt to say that if they tell me it will improve the sound of any high-end system by removing it from the power grid, I’d believe them…

…There are a few words when describing the sonic results of using the Stromtank to power my system: astounding, awe-inspiring, awesome, amazing, astonishing, excellent, fantastic, glorious, magnificent, sensational, spectacular, splendid, terrific, and wonderful. As I said earlier, before the Stromtank arrived, only at nighttime could my system could reach its potential. But with the Stromtank my system reached its full potential regardless of the time of day. Even though Stromtank’s literature promised it would make this improvement, it took me by surprise. Having my system sound the same both during the day and at night took some getting used to. In a good way…

…It operated better than advertised, actually, because I’ve never experienced sound like this from my system, other than during those occasional midnight listening sessions…

…Unless one lives in an area that shares a power line that comes from the power company with no one else, I can’t imagine one being disappointed with the performance of the Stromtank. And I’d bet even those audiophiles will hear an improvement in their systems because of the pure sine wave of battery power that the Stromtank delivers. The Stromtank cannot be compared to other power conditioners on the market because it isn’t a power condition. It is power. Period. And that’s the beauty of the Stromtank…“