By Daniel Ferguson
Проектирование и построение автомобильных акустических систем продолжают быть комбинацией искусства и науки. В этой книге описаны 20 полных иллюстрированных проектов акустических систем для разных видов транспортных средств. Шаг за шагом, от проекта до монтажа. Contents advent IX Acknowledgments xv bankruptcy 1 entrance SPEAKER tasks 1 Spacer jewelry 2 Two-Way part approach thirteen bankruptcy 2 REAR SPEAKER tasks FOR SEDANS 23 The Triax 24 Bandpass/Coax mixture forty two Bass Couplers 60 bankruptcy three REAR SPEAKER structures FOR HATCHBACKS sixty seven procedure I sixty nine method II eighty one extra energy 87 bankruptcy four REAR SPEAKER structures FOR PICKUP vehicles ninety nine general Cabs ninety nine excellent news a hundred approach assessments 108 different chances 111 CHAPTERS REAR SPEAKER platforms FOR vehicles AND recreation application automobiles 12S trucks 12S recreation software automobiles 128 Jeep Wrangler process 128 bankruptcy 6 extra ON SPEAKER cupboard development 147 development ideas 149 instruments one hundred fifty approach 151 different probabilities 167 In end one hundred eighty bankruptcy 7 THE filter out CROSSOVER 181 readability 182 Circuit functionality 185 Chassis education 189 meeting 193 Bench attempt 197 ultimate meeting 198 functionality 201 checking out in Use 205 ultimately ... 208 bankruptcy eight uncomplicated SPEAKERBUILDING 209 evaluation 209 Thiele-Small Parameters 210 Impedance dimension 211 making a choice on Qrs 213 picking VAS 216 Two-Way Crossover layout 219 Measured reaction 225 Circuit research 226 a few Observations on Speaker layout Shareware 229 My Spreadsheets 232 research of instance Thiele-Small Sixth-Order Alignment procedure 237 end 240 References 241 assets 243 Index 245
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Extra info for Car Stereo Speakers Illustrated
Installation of this system will require you to cut a 4:X-in hole in your front door panels. And, as stated before, this is a major decision, which requires a great deal of study. You may also want to enlist the help of a professional installer before pro- ceeding. 2. Assuming we've done all the prework, we begin by tracing a paper pattern of the door contour which will be transferred to a full-sized drawing of the driver's side as shown in Figure 1-5. 3. After tracing the pattern onto the particle board, we layout the hole pattern for the woofer and tweeter with a compass.
7. Carefully layout all of the screw holes on the outer surfaces of the rest of the pieces. Some general guidelines should be followed. Photo 2-26 • Screw holes should be between 2 and 3 in apart and be evenly spaced. • For %-in material, the holes should be % in from the edges. • To minimize splitting the particle board, avoid locating holes less than IX in from the ends. • After all the holes are located, center-punch and drill with a %l-in drill for a slip fit. The best and easiest method for countersinking the holes evenly is to install a secure stop 47 Rear Speaker Systems for Sedans on a %-in drill bit as shown in Photo 2-27.
While this is typically done with a hacksaw, it is much easier to do on a table saw using Photo 2-28 48 Chapter Two Photo 2-29 Photo 2-30 the miter gage, as shown in Photo 2-31. The inner and outer edges of the pipe must he rounded and smooth to minimize port noises. -in-radius roundover bit as shown in Photo 2-32. 12. With all the prep work done, we're ready for final assembly. I recommend the following procedure: • Place a bucket of warm, clean water and a suitable clean rag near the workbench to wipe off excess glue.