Honestly, DJ is one of the best customer service guys I've ever dealt with. The many times I've called him with questions about the HDC3's when I was still researching them, he was more than willing to spend ample time with me on the phone, analyze my set-up and give me suggestions and even helped me with some wiring issues I had. Terribly knowledgeable in the general car audio field. That and talking to the guy who makes the subs is a whole lot better than talking to someone foreign who can barely speak English like every other company has for CS these days