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USING TWIN CONVERGENT (OR BAFFLE) CONES WITH THE FIRST CONE OF PERFORATED SHEET (DRILLED ROUND HOLES) FOLLOWED BY A CHAMBER AND FINAL CONE THAT GIVE THE LOW END BOOST, YOU GET A VERY WIDE POWERBAND. THE SOFTWARE EXACTLY CALCULATE THE CORRECT DIMENSIONS SO THAT THE RESONANCE BETWEEN THE 2 CONES DO NOT DILUTE THE AMPLITUDE OF THE WAVES (WHICH WILL DEGRADE PERFORMANCE BADLY IF THAT HAPPEN). THE 2 CONES HAVE DIFFERENT ANGLES, DESIGNED TO HELP WITH THE AIM OF A MUCH BROADER POWERBAND, ALSO THE EXTENSION BELLY HAVE A SMALLER DIAMETER THAT IS EXACTLY CALCULATED FROM THE SIMULATION DATA PULLED FROM THE VERSION 8 FILE.
THIS ALL BEING CALCULATED WITH MANY PARAMETERS FOR CORRECT SIZES OF THE EXTENSION CHAMBER. CORRECT LENGTHS, ANGLES AND DIAMETERS AND VOLUMES (A FEW MILLIMETERS CAN MAKE THE DIFFERENCE BETWEEN GOOD AND BAD!) MAKES A WELL PERFORMING DUAL POWERBAND PIPE. |