They don't have RCA inputs, and only work with Pioneer's ODR line of headunits/processors, so please bear this in mind... basically, if you don't know whether you can use them in your system, you can't.
Class A/B: 2 * 50WRMS rated, @ 4 ohms, or 1 * 200WRMS @ 4 ohms bridged
ODR Headunit SYSTEMS ARE THE RS-D7RII or the RS-P90