Ok, so I was thinking about purchasing a Avatar B410 Neo, and then I was thinking about getting a Markbass Little Mark II. I was just wondering if this would be TO underpowering.. I would also use a Hartke 410 Transporter to stack, so it would be 4 ohms with the two cabs, and the LM II is 500w at 4ohms correct? So I wouldn't think it would be to underpowering, but what do you think? And just as a side note.. Thats the difference between a normal output jack (1/4" maybe? I don't really know) and a "speakon" output jack?