MTX RTX4BTs picture


RTX High Efficiency 1.75” Compression Bullet Tweeter 8Ω 200W RMS (Sold by piece)


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.


  • Compression bullet tweeter for maximum efficiency
  • Outstanding sound quality with an incredible sense of music
  • 1.75” 45mm KSV voice coil for an incredible dynamic
  • CCAW voice coil wire for more definition
  • Super large strontium magnet (Ø90mm) for more dynamic and efficiency
  • Aluminum cone for maximum speed and dynamics
  • Integrated passive x-over. It comes with a soldered polypropylene capacitor
  • Sold by piece - You need two RTX4BTs for stereo
  • Designed to play with MTX RTX654 or RTX84 midranges
  • Designed to play with MTX TR275 TX2275 TR450 TX2450 TX480D RFL4120 RFM5300 amplifiers


  • Compression Tweeter
  • Voice coil diameter: 1.75“
  • Frame dimension: 100,5mm
  • RMS Power: 200W
  • Max Power: 800W
  • Sensitivity: 103,0dB/2v/1m
  • Impedance: 8Ω
  • Response: 2000Hz - 20000Hz
  • Mounting Depth : 65mm

Recommended efficient associations

Designed to play with RTX654 or RTX84 midranges

MTX TX2450 picture

Recommended amplifiers: MTX TR275 TX2275 TR450 TX2450 TX480D RFL4120 RFM5300

MTX TX2450 picture


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 / day
92dB : maximum 6 hours / day
95db : maximum 4 hours / day
97db : maximum 3 hours / day
100db : maximum 2 hours / day
102db : maximum 90 minutes / day
105db : maximum 60 minutes / day
110db : maximum 30 minutes / day
115db : maximum less than 15 minutes / day
120db : immediate danger, 0 minutes / day



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