Get it here: http://www.fullcompass.com/prod/206506-ADAM-Audio-A77X Full Compass is a major national retailer of Pro Audio, Video, AV, Lighting and Musical Instruments. Call 800-356-5844 for a great price and expert advice on items from over 700 brands. ADAM Audio's A77X is equipped with the same advanced technologies as the A7X and is very similar to the two-way speaker. The A77X, however, distinguishes itself by much higher, compression-free maximum sound pressure levels and dynamics. Due to its power and radiation characteristics, it also is perfectly suited for both near- and mid-field monitoring. Like all models of the AX series, the A77X features the ADAM proprietary X-ART tweeter. The "X" stands for "eXtended frequency response" and thus for one of the features of the Accelerating Ribbon Technology that has been drastically improved: the frequency response. It now extends all the way up to 50 kHz. In addition, the X-ART tweeter has higher efficiency and higher maximum sound pressure levels.