Im looking into buying one of these 2 amps. http://www.guitarcenter.com/Acoustic-B450mkII-450W-Bass-Combo-Amp-107901548-i2497482.gc http://www.guitarcenter.com/Ampeg-PF-500-Portaflex-and-PF-210HE-Stack-431105-i1821347.gc I have played Ampegs before and I know their quality and am very pleased with it. But this Acoustic amp really interests me. I like the portaflex overall with its power, sound, and fliptop. But this Acoustic amp is a combo which just makes carrying everything easier. Both can put out the power I need and want considering I can hook up another 4 ohm cabinet to the acoustic amp and get up to 600 watts. the main issue is i have no experience with Acoustic at all so i dont know their reputation or quality all that well. Can anyone give me opinions on these 2? Money is also a factor. and with the Acoustic being cheaper its definitely something im considering. Either one i buy will be bought used also.