For over a decade, JBL SR and SRX series speakers have represented the best performance, highest quality and most advanced driver technology available to portable PA users. The SRX700 series continues that tradition and moves the bar even higher. The advanced technology of SRX700 series speakers delivers the power and performance that you would expect from the highest quality, professional rig. At the same time, JBL innovation and design have reduced system weight so load in and out are a breeze. All this performance is housed in rugged birch enclosures for years of superb performance. SRX700 is constructed of top quality birch plywood and coated in JBL's rugged DuraFlex™ finish. Extensive use of internal braces and bulkheads makes the enclosures extremely rigid. This reduces acoustic losses caused by panel resonance. The attractive CNC-machined, 16-gauge steel grille wraps around the sides of the enclosure so there are no protruding lips on the front of the system to create acoustical interference. The grilles are internally lined with acoustically transparent foam to provide additional driver protection and give a totally professional appearance.