Brand NEW! Including 90 Days USA Factory Warranty. Dayton Audio's AMT3-4 Air Motion Transformer mid-tweeter brings clarity, transient speed, and musical finesse to your design. The large AMT-technology diaphragm and high-strength neo motor offer extremely wide bandwidth and high sensitivity. Highlights ? Robust metal faceplate provides secure, stable mounting ? Powerful, lightweight neodymium magnet structure for low distortion and high efficiency ? Wide bandwidth facilitates integration with large midwoofers ? 25 watt RMS power handling The Dayton Audio AMT3-4's generous radiating area extends response from lower frequencies into the upper midrange, making the transducer great for use as a wideband "mid-tweeter" in a 2-way design with larger woofers, or as a midrange in a 3-way design. The robust metal faceplate adds the distinctive feel of quality, while the sealed rear chamber design eliminates the need for a separate enclosure chamber. Dayton Audio AMT (Air Motion Transformer) tweeters use groundbreaking transducer technology from the original Heil Air Motion Transformer to provide ultra-clean, detailed, and dynamic treble output. The pleated ribbon diaphragm of an AMT provides a large acoustic radiating area condensed into a compact chassis, for extremely high output and improved power handling. Product Specifications ? Tweeter Type - Air Motion Transformer (AMT) ? Impedance - 4 ohms ? Power Handling (RMS) - 25 Watts ? Frequency Response - 1,900 to 18,000 Hz ? Sensitivity - 93 dB 1W/1m Thiele-Small Parameters ? Resonant Frequency (Fs) - 1,900 Hz ? DC Resistance (Re) - 3.00 ohms ? Mechanical Q (Qms) - 6.26 ? Total Q (Qts) - 6.15 Mounting Information ? Overall Outside Diameter - 5.12" x 3.74" ? Cutout Diameter - 4.45" x 2.68" ? Depth - 0.75" - All international buyers are responsible for all tax, duties and/or customs fees.