Music on a PWC, motorcycle, ATV, snow-mobile? Yes you can! This 4" has a 1.5" voice coil for more power handling and a neo magnet for more efficiency. These are 91 dB efficiency and have a frequency response of 60 Hz to 19 kHz +/- 3dB. This will drop into the 414 as a more powerful replacement (it is deeper, though). Rated at 80 watts continuous and 300 watt peaks. Price is per pair.