ok im replacing my old carvin pro bass 500 and i was deciding between a few different amps. i have decided to choose on of the following due to financial reasons. i have looked at a hartke 7000 (i used to have a 3500 and loved the tone). also i am looking at the carvin r600 and r1000. either of those would be fine by me. my biggest concern was not being able to bridge the hartke like you can the carvin to get the most out of the amp. the carvins will do 600w or 1000w bridged at 4ohms depending on which model but the hartke will do 350w a channel at 4ohm. i am using 2 carvin rl410 cabs rated at 600w and 8ohms a piece. let me know your thoughts....