Active 10" PA speaker with DSP and Bluetooth. 800 Watts (Peak) Bi-Amp 10" PA speaker. Two Class-D amplifiers: 175 W and 25 W. Frequency range: 50 - 20,000 Hz. Impedance: 4 Ohms, max SPL: 121 dB. DSP controller with 24 Bit / 48 kHz, 4 EQ presets, Bluetooth receiver. Equipped with a 10" woofer and a 1" tweeter. The PD4 series speakers from Power Dynamics feature two powerful Class-D amplifiers. The PD4 has a built-in DSP with 4 preset modes for speech, PA, sub, and monitor sound settings. In sub mode, the speaker can be used as a top in combination with a subwoofer. It also includes a built-in Bluetooth receiver for audio streaming. This series is designed with a polypropylene construction to handle power while being lightweight enough for mobile use. The speaker is mounted via a 35 mm speaker stand flange. The perfect speaker for DJs or live performers, but also suitable for monitor or club use.