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cos22tm

subw cu JBL auto

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Salut ! am un dif JBL CS10 cu urmatorii param T/S: Power Handling, RMS : 100W Peak Power : 400W Frequency Response : 38Hz - 800Hz Sensitivity (2.83V/1m) : 91dB Impedance : 4 ohms Mounting Depth : 116mm Cut-Out Diameter : 229mm Revc : 3,6 ohms Vas : 63L Qts : 0,42 Fs : 29,6Hz Qes : 0,44 Qms : 6,87 Mms : 85g Levc : 2mH Vreau sa-mi fac un subwoofer pt camera 15-20mp . Am folosit BassBox pt a simula rasunsul in frecventa & SPL in functie de volumul intern al cutiei, problema e ca imi iese cutia cam mare :(Cel mai bine a iesit cu un vol. intern de 60L, Fb=30Hz F3=30Hz Diam port bass-reflex=50mm lungime=60mm =>graficul arata [email protected] ;[email protected] 0dB ; [email protected] 0.3dB ; [email protected] 0.7dB iar cu un vol. intern de 40L , Fb=30Hz F3=36Hz dp=50mm lp=67mm=>graficul arata [email protected] ;[email protected]; [email protected] -0.2dB ; [email protected] 0.7dB Voi ce parere aveti(cei cu experinta in constructia de subw) se merita o cutie mai mare (prima vol.int. 60L) sau va suna bine si in a doua (vol.int.40L) ?

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mie nu mi se apar diferente mari..alege-o pe care vrei..mai uite-te si la raspunsul tranzitoriu..vezi sa nu ia valori prea mari, tine-l cat mai jos..preferabil <15msPS mie intre 60L si 40L nu mi se par diferente semnificative...

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mie ala de 10" imi ajunge de asta am optat pt el , pt cel de 12" trebuie si un amp mai puternic.cutia de la JBL din cate am vazut e trapezoidala si pt CS10 e de 30L (sealed) si 40L (bass reflex cu tub de 70mm l=160mm)eu l-am pus intr-o incinta de 45L de proba si cam vibra f.tare...e drept ca nici nu l-am prins decat in 3 suruburi

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