Many speaker manufacturers start with a driver — someone else's driver, an OEM design — and go from there. That approach is not an option at PMC. Our Advanced Transmission Line™ designs require a driver specifically tailored to its parent cabinet to produce the high-resolution, ultra-low-distortion performance our customers expect of us. As a result, our drivers yield a natural, pure, uncoloured sound which you can trust as a true audio reference. Why would you want anything else?