The new AMK PCS615 is a self-amplified cabinet speaker system that features a 15-watt Class D digital design amplifier with what AMK is specifying as > 75 percent efficiency using coaxial drivers. The CX602 speaker includes a frequency response of 65 Hz – 20 kHz, uses a 13mm Polyamide soft dome tweeter and a Polypropylene woofer. It’s spec’d with a crossover frequency of 6.3 kHz and a signal-to-noise ratio > 95dB.

You can see all the specs here.