Модель
Ground Zero GZIW 200X-II
Оценка
DIAM
8"
FS(Гц)
38.4
VAS(л)
27
QTS
0.48
PWR(Вт)
300
SPL(Дб)
86.5
IMP(Ом)
4x1
доступ
ПРОИЗ
+156 P-Bass
13 Apr 2020, 11:37
Оформление
БП4, Vbперед: 15л, Fbперед: 67.3Гц, Vbзад: 15л
+156 P-Bass
12 Apr 2020, 21:16
Описание
I used the woofer's stock parameters from SBL database and Pe = max power. I tried to simulate all other types of boxes too, but this 6th order bandpass basically pulls the most out of this woofer (deepness / loudness), and matching my needs too: ideal power handling down to high 20ish frequencies, no negative peak around the low Fb, acceptable group delay at 20 Hz and higher frequencies, and the compactness is acceptable too.
Оформление
БП6, Vbперед: 9.6л, Fbперед: 35.7Гц, Vbзад: 3.2л, Fbзад: 170.8Гц
Описание
In this project I simulated all boxes from woofer's original datasheet: https://www.ground-zero-audio.com/wp-content/uploads/GZIW-200X-II-1.pdf using the stock parameters from SBL database (for boxes: same Vbs and approx. the same vent areas + lengths like in datasheet). The differences are the same like in the simulations on the datasheet, and the results are just a little bit different, so I can say: SBL's accuracy is really acceptable. For boxes: just power handling and vent air velocity are not so good.