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                The D3500Ti-Nd model is an ultra 
                high quality compression driver for professional use wherever 
                high SPl and low distortion are of great concern. Pure titanium 
                specially designed diaphragm with IPF~ {Impregnated Polymer 
                Fiber) surround, has structured  type snow flake for high 
                sensitivity, low distortion and smooth extended frequency 
                response applications.  
                
                The D3500Ti-Nd is recommended for 
                use in arenas, stage monitors, side fills and sound 
                reinforcement systems. Optimized aluminum injected phase plug 
                avoids phase cancellation problems. High flux density magnetic 
                assembly with Neodymium ring and copper shorting ring that 
                lowers distortion and reduces the voice coil self-inductance.  
                
                Protection circuit DPD~ {Driver 
                Protection Device ). This circuit uses a PTC and a HPCCR 
                resistor assuring more reliability under overload condition. The 
                flat wire voice coil {copper clad aluminum) uses a high 
                temperature Polyimide former. Precisely engineered diaphragm 
                structure and alignment mechanism allow for easy, reliable and 
                cost effective repair in case of diaphragm failure. In the rare 
                case a repair may be necessary, please read carefully the 
                instructions supplied and be sure to correctly follow the items 
                step by step. If you are not comfortable making the repair, 
                International Audio is your Authorized Repair Facility for the 
                United States.  
                
                With a 2" exit throat and standard 
                bolt pattern, it directly couples to Selenium horns with {50 mm) 
                throats. Base and cover are injected aluminum, assuring high 
                mechanical resistance and a very shallow profile. 
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