I was surfing through Ebay and cracked a smile, this is from Ebay item:

http://cgi.ebay.com/JL-Audio-Subwoofers-and-Amp-Power-Cap-Package_W0QQitemZ23001
2259974QQihZ013QQcategoryZ32822QQrdZ1QQcmdZViewItemTEXT:            Description                 Item Specifics - Car Subwoofers                                 Brand:  JL Audio    RMS Wattage:  1000                                 Model:  W6-V2    Voice Coil:  Dual                                 Size:  12 inches    Condition:  Used                                 Enclosure Included:  Yes            JL Audio 1001 watt D- class Amplifier , A Rockford Fosgate 1.0Farret Power cap and last on the list is the 120 volt cut off switch foryour battery.  All of this equipment works very well and is Extremely loud!!!!            FARRET POWER?  Is that like horse power?  My first thought wasof a ferret running in one of those hamster wheels.  Maybe it's how muchpower one ferret can generate in a minute if his wheel were connected to aturbine. ;)            MOSFET