Presonus Eris Sub 8BT- Active studio subwoofer with Bluetooth connectivity- 8" woofer- Frequency range: 30 - 200 Hz- Class AB power amplifier: 50W RMS- input level continuously adjustable (-30 dB to +6 dB)- variable low-pass filter (50 Hz to 130 Hz)- switchable high-pass filter at 80 Hz- phase switch- auto standby switchable- inputs- 2x 6.3mm balanced TRS jack, 2x unbalanced RCA, Bluetooth 5. 0- Outputs: 2x 6.3mm balanced TRS jack, 2x unbalanced RCA- shielded against RF interference, switch-on delay and output current limiter, overheating protection and subsonic filter- Dimensions(HWD): 298 x 250 x 323 mm- Weight: 7.38 kg