A towable, residential sealcoating apparatus and related methods for applying sealcoat to a residential, asphalt driveway. In one embodiment the method further includes but is not limited to controlling the at least one device via commands appropriate to the bus. The first and second differential coils smooth the DC current on a DC bus in the motor drive, and the first and second common-mode coils suppress common-mode voltages in the motor drive. The frequency of the local oscillator may be based on the low IF value. Also provided is a method of adjusting the above stirrer device.