YORKVILLE PSA1S - Paraline Series 12 Active Subwoofer 1400W so the SB-1 does not

so the SB-1 does not require batteries or external supply to make it work

allowing you to connect to any tripod with a connector)

Your Melodic Performance

900 mAh rechargeable battery)

YORKVILLE PSA1S - Paraline Series 12 Active Subwoofer 1400W so the SB-1 does notDesigned for medium sized events, Paraline subwoofers are designed to complement PSA1 powered loudspeakers in a scalable array system. They feature bass reflex cabinets and Class D power amplifiers for efficiency and long term reliability, and can accept both line and speaker level signals to integrate easily into any system. The PSA1S offers two 12 inch woofers, 2800 watts of peak power (1400 watts program), and a frequency response down to 37 Hz.