IMPEDENCE 8 ohms SPEAKER SIZE 1x15 in. BASS PORT rear TWEETER 1 compression driver with custom horn POWER HANDLING 400W RMS (AES Standard) CROSSOVER FREQUENCY 3.5 kHz FREQUENCY RESPONSE 40 Hz to 20 kHz SENSITIVITY 100 dB SPL WEIGHT 52.9 lbs / 24 kg WIDTH 23.4 in. / 59.4 cm HEIGHT 23.8 in. / 60.4 cm DEPTH 18.9 in. / 48 cm All Markbass cabinets contain ultra-light neodymium speakers.