• Folded Kapton ribbon diaphragm delivers clean, detailed, and highly dynamic output.
• Open back design permits dipole or chamber loading.
• Pro-level output and ruggedness for PA boxes, studio monitors, or high-efficiency home playback.

Quick Overview The Dayton Audio AMTPRO-4 Air Motion Transformer is designed for professional audio and demanding high-fidelity applications in which high SPL demands combine with the need for detailed reproduction and musical finesse. Product Highlights Advanced Air Motion Transformer design "squeezes" air molecules instead of shoving or crushing them Folded Kapton ribbon diaphragm delivers clean, detailed, and highly dynamic output Robust metal faceplate provides secure, stable ing Powerful, lightweight neodymium magnet structure for low distortion and high efficiency Open back design permits dipole or chamber loading Pro-level output and ruggedness for PA boxes, studio monitors, or high-efficiency home playback Product Manuals / Spec Sheets / Downloads Dayton Audio AMTPRO-4 Specification Sheet Dayton Audio AMTPRO-4 Data Files AddThis Sharing Buttons Share to FacebookFacebook Share to TwitterTwitter Share to MoreAddThis Product Description Dayton Audios AMTPRO-4 model features an extremely large AMT diaphragm with an open-back design and powerful neodymium magnetic assembly. This combination produces high output and low distortion over a broad frequency range, while handling large as of amplifier power. Perfect for use in PA loudspeakers, large-format studio monitors, custom cinema speakers, or extreme performance hi-fi loudspeakers, the AMTPRO-4 can easily be chamber-loaded or open-baffle loaded as required by a particular application. Thanks to its ability to be crossed over as low as 800 Hz, the AMTPRO-4 driver is a uniquely effective solution for midrange reproduction as well as treble, and can even be used as a wide-bandwidth “mid-tweeter” driver. Dayton Audio AMT (Air Motion Transformer) tweeters borrow technology from the original ESS/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 SPL output, wide bandwidth, and improved power handling. Specifications: Dimensions: Overall: 7.87" H x 3.94" W, Cutout: 6.77" H x 2.83" W, Depth: 1.42". Product Details Speaker Series AMT Series Model Number AMTPRO-4 List Price $193.99 Color Black Unit of Measure Each UPC 848791000645 Warranty - Parts 5 Years Warranty - Labor 5 Years Product Shipping Weight (lbs.) 2.65 Speaker Type Tweeter Power Handling (RMS) 50 watts Power Handling (max) 100 watts Continuous Program Power -- Impedance 4 ohms Sensitivity 94 dB 1W/1m Frequency Response 800 - 18 000 Hz Voice Coil Diameter -- Magnet Weight -- DC Resistance (Re) 3.96 ohms Voice Coil Inductance (Le) 0.06 mH @ 10k Hz Resonant Frequency (Fs) -- Mechanical Q (Qms) -- Electromagnetic Q (Qes) -- Total Q (Qts) 4.12 Diaphragm Mass Inc. Airload (Mms) -- Moving Mass Of Diaphragm (Mmd) -- Mechanical Compliance of Suspension (Cms) -- Surface Area Of Cone (Sd) 54.72 cm² Volume of Displacement (Vd) -- BL Product (BL) -- Compliance Equivalent Volume (Vas) -- Maximum Linear Excursion (Xmax) -- Drivers Mechanical Losses (Rms) -- Entry / Exit Diameter -- Surround Material -- Voice Coil Wire Material -- Voice Coil Former -- Basket/Frame Material -- Magnet Material -- Overall Outside Diameter 100 mm x 200 mm Overall Depth 36 mm Baffle Cutout Diameter 72 mm x 172 mm # ing Holes 4 ing Hole Diameter -- Bolt Circle Diameter -- Product Weight --