The MTX RTX4BTs tweeter is a high efficiency tweeter. With little power, it makes a lot of sound. It is intended for SQL type installations and open door sound systems. The sound is powerful and very live. To work, it must be coupled to an RTX654 or an RTX84 midrange. It comes with a capacitor to filter and protect it. But you can also use it with an active x-over. Please note, the RTX4BTs is sold by the piece. So you need two to make stereo.
MTX wants you to enjoy your hearing for a long time. Excessive exposure to loud volumes can damage your hearing. The United States Department of Labor recommends not exceeding the following recommendations:90db : maximum 8 hours / day92dB : maximum 6 hours / day95db : maximum 4 hours / day97db : maximum 3 hours / day100db : maximum 2 hours / day102db : maximum 90 minutes / day105db : maximum 60 minutes / day110db : maximum 30 minutes / day115db : maximum less than 15 minutes / day120db : immediate danger, 0 minutes / day
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