Mackie CR8S-X BT, Active Bluetooth Subwoofer, Size: 8"", Class D amplifier, Power: 200 W, Frequency range: 40 - 180 Hz (-3 dB), Max. SPL (sound pressure level): 112 dB, Adjustable crossover frequency: 40 - 180 Hz, Housing: MDF, Audio playback via Bluetooth, Adjustable input and output volume, Dimensions (W x H x D): 356 x 320 x 411 mm, Weight: 11.1 kg@+*Connections:*@+@+, 2x 6.3 mm jack line input, RCA input, 2x 6.3 mm jack line output, RCA output, Input for wired remote control