I recently acquired one of these amps from my job. Has anyone ever used any of the CDI series before? They are awesome. USB connectivity to my HTPC allows me to set crossover points(Including going low enough to use as a HPF) among other things. Ridiculous power and customization options. I am driving my ported LLT 15" Titanic DIY sub with it currently with just one channel, and my center with the other channel(LoL). Just seeing if anyone ever shelled out the cash for one of these and is using it. I realize as far as budget and low cost is concerned it's probably at the bottom of the list.