RCF Ayra Pro10 Sub, Active 10" Subwoofer, Class D amplifier, Power: 300/600 W RMS/peak, Max. SPL (sound pressure level): 120 dB, Frequency response: 30 - 120 Hz, Stereo input section, Stereo crossover output, Adjustable crossover frequency between 50 and 120 Hz, Bass reflex port, Dimensions (W x H x D): 355 x 400 x 390 mm, Weight: 17.8 kg, Colour: Black