The HY-PF7B and HY-PF7W Speaker rigging frames are used exclusively to suspend the HX-7B or HX-7W Speaker system from the high ceiling indoors. The FB-150B or FB-150W Subwoofer system can also be suspended using the HY-PF7B or HY-PF7W and the Speaker rigging frame’s supplied mounting brackets. Each of HY-PF7B and HY-PF7W is capable of suspending up to two HX-7B or HX-7W speakers and one FB-150B or FB-150W.