“Jim, First off thanks for your product. The HT210S blew me away the first time I heard it. I’m now getting a used HT210 and HT115 stack to hold me while I work out the funds for an IP310 or IP212!!! Its very cool to know that the very guy that engineered my cab and made it, can tell me exactly why every detail is the way it is. What Im saying is that in a world of bass gear hype and fluff, Bergantino is the most well rounded bass cab, from sound, to service. Thanks a again Jim. ” Travis Sanders