JBL SRX900LA PB SRX900 Pull Back AccessoryThe SRX906LA PB accessory is a lightweight pull back bracket that can be used to implement pull back of SRX906LA or SRX910LA arrays. The SRX906LA PB attaches to the bottom cabinet of an array and connects to a rear center suspension point to allow for more downtilt than would otherwise be possible using an SRX900 Series array frame alone. JBLs Line Array Calculator 3 software application is used to calculate the required downtilt angle. The SRX906LA