Texas Star Dx 250 Hdv Killer Bee Make Texas Star Model DX 250 HDV Killer Bee Catalog # EX 250HDV Description Class AB1 Amplifier with variable power level, power meter and preamp. Power Output 150W (4 watts drive)250W (20 watts drive) notes 2-2SC2290 Transistors Texas Star DX 250 HDV Killer Bee Description Class AB1 Amplifier with variable power level, power meter and preamp.