I have a blown 4 10 cab and I'm looking at either putting new speakers in or buying a new cab. Ideally I'd like a cab that can handle 1000 watts @ 4 ohms. I have my eye on the Eden cab, priced right at $1000. http://www.activebass.com/item--UR.D410XST8 I'm hearing that I could put high quality speakers in the box I have now for much less and that's where my questions come in. 1. Series vs. Parallel, does one handle more power better? and how is ohms and wattage determined for each. I know is 4 16ohm speakers giving you a 4 ohm load and the other is 4 4ohm speakers giving you a 4 ohm load. So 4 100watt speakers is a 100 watt cab or a 400 watt cab? and I'm assuming 4 4ohm speakers would be a stronger cab than the 4 16ohm 2. PA speakers vs. Bass speakers. I've heard back and forth on this from three different people now. Some say the PA will handle more power and give a broader spectrum of sound overall and I've also heard that playing bass through PA speakers will blow them out quick, ruin the cone or something like that.. anyone really know for a fact? What specs should I be looking at? 3. Magnet size. I'm hearing the bigger the better. I was looking at the avatar bass cab site and they had speakers with a 42 oz magnet. I don't know what to compare that to but they had it listed as a selling point. Is bigger magnets better and why? 4. Voice coils melting. If a cab is rated at 500 watts and you go over it, the voice coils melt and you're then destroying your speaker, right? So.. if I get a cab rated higher than my head is that no longer a concern? I have a head rated at 500 watts at 8ohm and 1000 at 4ohm. 5. Can a cab mess up my head? My friend replaced a 12 inch guitar speaker in his combo amp with a same size PA speaker but he said the magnet was much bigger and the speaker rated higher. He says he can now run the amp on full volume constantly and it won't hurt the speaker at all. But he says the head will wear down faster now from pushing that speaker. I've played my bass through his set up a half dozen times now and it sounds amazing, just curious if what he's saying is true. I want a cab that I can play hard and loud and that can take the abuse that this head can dish out. I know no speakers are going to last forever but somethings gotta take some abuse. Lemmy kills his! haha I'm playing two different basses, both passive Ampeg SVT Pro 7 Boss pedals, tons of distortion 4 10 cab I know I know, lots of questions. Any replies, real life experience or links to other info is always appreciated.