Both these 500 watters are not out of my price range, and I would kind of like to have a new bass head. I love my SVT-350 SS, I just kind of like something in the 500 watt range. I liked the sound of the B100R so I am kind of curious if the PF-500 has that kind of tone in a 500 watt package. Also as far as tone and volume what would be the A vs B of the PF-500 compared to a Hartke LH 500. I used to have a 60 watt Hartke combo and I thought it was the neatest little amp. Good little tone box. I like a raw gritty sound...kind of over-driven a little bit like AIC, Megadeth (I know he uses Hartke), Slipknot, Cliff Burton, and Anthrax kind of dirty. I am wondering what the consensus is of these amps in a hard rock/metal setting?