First off let me say that speaker hardware shipped my order very promptly after I placed it, fewer than 24 hours had passed before it was shipped.
I threw this speaker into my Warwick 115 pro bass cabinet because I fried the stock speaker. You're not going to find another 15 inch woofer with this kind of power handling anywhere. I used it on a gig this past friday with my death metal band and the volume and voicing was amazing. I was actually overpowering the guitarist with no pa support! My cabinet is now louder than any 410 I've used at a fraction of the weight. It should be noted that this is a very mid-range focused speaker; it doesn't have a lot of inherent sub bass or super lows. But if you are looking for an aggressive metal or rock tone you can't do better. I would liken the sound to similar to that of an 8x10.