I am interested in purchasing this amp and have read through most of the past TB threads about it. However, I still have some questions for those that have experience using it: 1. Do you find the R600 to be loud enough? 2. What mode did you have it set-up for (bi-amp, full range, bridge)? 3. What cabs did you use it with? Seems like a lot of people claim it is underpowered or unreliable but I can't help but wonder if many of them are not using the amp properly according to the manual. I plan to use it full range (un-bridged) for 250w/side with Carvins RL115/210 4 ohm cabs. Also, I've seen a lot of recommendations to go with the R1000 instead for just a few bucks more. That is generally good advice and the extra money is not a problem so I may do just that, but I'm just wondering if it's really necessary considering I can't turn my current 300W Hartke past 3 at band practice. Thanks in advance for any input you can offer.