Modelo
Tang Band W8-740P
Valoración
DIAM
FS(Hz)
VAS(l)
QTS
PWR(W)
SPL(dB)
IMP(Ohm)
DISP
+156 P-Bass
8 Dec 2022, 13:45
Recinto
Reflejo de bajos
+156 P-Bass
13 Feb 2020, 18:52
Descripción
In this project for this woofer I simulated all 4 types of boxes what can be done using SBL designer (WEB version). My rules: ideal power handling down to 20 or 10 Hz, reach but no overpass Xmax down to 20 or 10 Hz, acceptable group delay and vent air velocity everywhere. For Vbs and Fbs see the graphs history. For this woofer can be done a buildable 10 Hz optimised vented box too, but at 20ish frequencies the 20 hz optimised vented box is the loudest + it have acceptable compactness, so this is on 3D.
Recinto
Reflejo de bajos
+156 P-Bass
28 Oct 2019, 12:07
Descripción
I designed this to sound deep, not loud (SPL graph). It can play down to 10 Hz (the lowest db value in Ampl. resp. graph is -41,9). It can play down to 25 Hz at its full power (Cone displ. graph: the speaker there exceeds it's Xmax). Acuracy is acceptable because in Phase response the -180 degree is at port tuning and Group delay's time is everywhere less than the actual frequency's time. Port area is way more larger than minimum recomended. 2 interesting things: the port is perfect labytinth and Fb = F3.
Recinto
Reflejo de bajos
Descripción
The reason why I used a Tang Band driver in this project, because if I know right, Logitech uses Tang Band drivers in some of their speaker systems. This box I optimised for measured parameters of Logitech Z-623 subwoofer's driver. Vb, Fb and port area I determined in BB6 to maximise the excursion higher than Fb, to have equal or just less F3 like Fb using QL=10. For QL=7 BB6 gives a bigger box which isn't really good in SBL with QL=7. QL=10 BB6 is good even with Ql=7 in SBL, even for this Tang Band driver.