I'm considering picking up a Used Behringer BASS V-AMP Pro and a used HARTKE 2X15 500W BASS CAB. I haven't been able to find the wattage for the amp...I'm afraid it won't be able to power thic cabinet. Am I correct? What would this Behringer work well with? Is it worth 100 dollars? Looks like it has some nice amp options. Thanks for the help.