In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. The Electro-Voice Zx5-90B is the new standard of no compromise audio performance and versatility in a simple to use, compact package. It is a 15-inch, 2-way cabinet with the most elegant high-impact composite enclosure, featuring the newest generation of EV components: the all-new DXV3150 15” LF Transducer, a 15-inch woofer, and the all-new 2-inch neodymium ND2 compression driver.