The JBL SRX910LA-BP Base Plate is a must-have for anyone looking to enhance their sound setup. Ideal for musicians, event planners, and audio professionals, this base plate allows you to ground stack your SRX910LA arrays on compatible subwoofers or support structures like stages, scaffolding, or carts. With its universal M20 threaded pole mount, you can easily connect to any supported subwoofer equipped with a standard M20 pole mount adapter, such as the SRX928S. The rear angle selection bar allows for angles ranging from -15 to +5 degrees, giving you the flexibility to adjust your sound for optimal dispersion. Measuring 75 mm x 683 mm x 540 mm (2.9 in x 26.9 in x 21.3 in) and weighing 6.0 kg (13 lbs), this base plate is easy to install and transport. Get the most out of your SRX910LA arrays with the JBL SRX910LA-BP Base Plate!