I know that there have been a couple of different manufacturers that have made Ampeg SVT's over the years and I have recently found a Magnavox Made SVT that I would like to purchase. What I am wanting to know is what are the charactoristics of that particular manufacturer. Are there any quality or sound issues involved or are they all the same? Also why is the head rated at 300 watts@2 or 4 ohms but the 4x10 svt classic cab is rated at 8 ohms. Wouldn't this put the power at 150 watts?? Also i was wonder ing if the new SVT's Made by st. louis music were any better or worse.