EV ZLX 15BT 15″ powered loudspeaker with bluetooth® audio

• High‑quality Bluetooth^® audio streaming for background music or musical accompaniment.
• QuickSmartDSP features best‑in‑class processing. Easy setup via four presets, sub/top system‑match, two‑band EQ, five user‑programmable presets, visual monitoring of limiter status, input level control and meters, and master volume control to optimize gain structure, all via LCD.
• High‑efficiency 1000 W Class‑D power amplifier delivers up to 127 dB peak SPL utilizing transducers designed and engineered by EV.
• EV‑patented Signal Synchronized Transducers (SST) waveguide design provides precise and consistent coverage, minimal distortion, and maximized acoustical loading.
• Electro-Voice (commonly referred to as EV) is an American manufacturer of audio equipment, including microphones, amplifiers, and loudspeakers, focused on pro audio applications such as sound reinforcement.
• Three optimally located handles combined with a rugged composite structure provides the most portable professional sound speaker on the market.
• On September 1, 1927, Lou Burroughs and Albert R. Kahn began a small business called Radio Engineers, servicing radio receivers in the basement of the Century Tire and Rubber Company in South Bend, Indiana. Because of the Great Depression, according to Kahn, “We found ourselves insolvent to the extent of $5,000 ($76,524 today).^[1] They decided to focus their business on audio products. The company designed a PA system for Notre Dame football coach Knute Rockne. Rockne, who had difficulty being heard at football practices due to health problems that affected his voice, called the new PA system his “electric voice”. Rockne’s remark inspired the company’s name. On June 1, 1930, Burroughs and Kahn incorporated under the name “Electro-Voice”.^[2][3]

  The partners recognized an opportunity to capitalize on what they perceived as the generally poor quality and high prices of existing microphones. They purchased a lathe and a drill and started producing about one microphone a week. Soon after, Burroughs withdrew from the business, leaving complete ownership to Kahn. By 1933, the previous business debts were completely paid off, and Electro-Voice began hiring manufacturing employees. In 1936, twenty people were hired, and Lou Burroughs returned as chief engineer