I have a Legend that I am willing to unload. I am looking to get a couple more 18 in. sub. Anyone interested, send me a PM. The Legend has one of the newer amp and has be trouble free.
As to worry about amp consumption, I run to 18 in. sub and my power console has never went higher than 1000 watts at reference level. I have an avr, 2 external amps one 200 watts and the other 250 watts, tv , BDP and cable box on the console. The normal power consumption is 350-400 watts at 75 db. The system can do over 120 watts with some Blurays. So, the subs never use more than 600 watt. My room is 6800 + 3ft. IMO no need to put in special circuit unless the home has an old electrical supply and the lights go dim in the house, lol. Just one man's opinion.
You will most likely reach the subs max output before you run out of amps from a typical 15 or 20 amp electrical supply outlet.Edited by derrickdj1 - 9/15/13 at 6:15pm