Ok, so I know that these subs are not really in the same class but this is my dilemma... I can get a used Tannoy PS115 for $425 or a brand new SVS PB10-ISD for $429, the Tannoy is only 100 watts but it's a 15" sub. The SVS is 300 watts but it's only a 10". Does anyone have experience with either of these? Or what are your opinions? Which one will drive my neighbours more nuts?