I am likely going to purchase this amplifier sometime in the next month or so; http://www.carvinguitars.com/products/BX500-15.3 I was just wondering if anyone on here has one and what they thought of it. Currently I am using a Carvin MB 210 and am very impressed with it (actually, I love it), but I need more power for performing. Going out to a PA with the direct out on my MB is not an option for me at this point. Some questions; 1. How has it held up for you, how long have you had it 2. Do you find the 500W is enough for performing with no PA (I am competing against 4 guitars who play moderately loud, but not LOUD LOUD, our PA is vocal only and is 800W). 3. I like the tone of my 210 overall but could really use more grunt on the lows which tend to fart out a little bit with increased volume on my MB210. Can I expect better lows with the 15? (I play primarily country, classic rock, and southern rock with some blues, I need steady, thumpy low end and punch). I do not own a bass with more than 4 strings and I play standard tuning, at most half step down. Any information on this specific amp would be greatly appreciated!