Quick Overview The DAEX30HESF-4 30 mm steered high flux exciter is one of the most powerful in Dayton Audios line of exciters capable of handling up to 40 watts. A pre-attached 3M VHB adhesive ring combines with four screw-down mounting tabs for maximum energy transfer. Product Highlights High output exciter design handles up to 40 watts RMS Specially designed neodymium motor and proprietary voice coil 3M™ VHB™ adhesive ring with four mounting holes Low inductance (only 0.3 mH) motor for extended response Product Manuals / Spec Sheets / Downloads Dayton Audio DAEX30HESF-4 Specification Sheet AddThis Sharing Buttons Share to FacebookFacebook Share to TwitterTwitter Share to MoreAddThis Product Description Dayton Audios DAEX30HESF-4 steered high flux exciter is one of our most powerful. It has a specially designed neodymium motor system that imparts strong forces on even the most rigid surface for maximum output. For use with medium sized amplifiers, this steered high flux exciter incorporates a 4 ohm voice coil to extract maximum power. A wide frequency response is permitted due to this exciters low inductance of only 0.3 mH. Four threaded screw holes are integrated into the exciters shell and combine with a 3M VHB (Very High Bond) adhesive, permitting this exciter to be securely coupled to a wide range of materials, even upside-down mounting and attaching to moving objects. Two solder tabs offer quick, permanent wire attachment. Note: An exciters frequency response and sensitivity are completely dependent on the exciters designated surface. Thinner, smaller materials will tend to be louder and create a mid/tweeter response. Thicker, larger materials (with multiple exciters) will be slightly quieter but result in a more full-range sound. To understand more about exciter technology, here is a link to the Exciters Buyers Guide . Product Details Speaker Series Exciters Model Number DAEX30HESF-4 List Price $29.99 Color Silver Unit of Measure Each UPC 848791001574 Warranty - Parts 5 Years Warranty - Labor 5 Years Product Shipping Weight (lbs.) 0.4 Speaker Type Exciter Power Handling (RMS) 40 watts Power Handling (max) -- Continuous Program Power -- Impedance 4 ohms Sensitivity -- Frequency Response -- Voice Coil Diameter 30 mm Magnet Weight -- DC Resistance (Re) 3.8 ohms Voice Coil Inductance (Le) 0.31 mH Resonant Frequency (Fs) 300 Hz Mechanical Q (Qms) -- Electromagnetic Q (Qes) -- Total Q (Qts) -- Diaphragm Mass Inc. Airload (Mms) -- Moving Mass Of Diaphragm (Mmd) -- Mechanical Compliance of Suspension (Cms) -- Surface Area Of Cone (Sd) -- 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 2.25" dia. (2.75" across mounting tabs) 1.25" adhesive tab dia. Overall Depth 1.125" H Baffle Cutout Diameter -- Mounting Hole Diameter -- Bolt Circle Diameter -- Product Weight --