Enclosure for measured FI SP4 18 D2
My name is Olli and I am living in germany in the near of Hamburg.
In my 5.1 cinema I need a recommandation for the subwoofer part ...
My current setup is 5.1, the front is Visaton Experience (custom made with GF200 instead of W200), the center is also a version of the Experience with 2x GF200 in a horizontal version of the visaton Experience (please look at "world wide web dot mrwoofa dot de for the vox center", this is the version i am useing).
The Rears are a small version of the front without the bass section.
All loudspeakers are powered by seperate (PA)amps with 300w RMS at 4ohms.
The Sub part is covered by a FI SP4 18D2, fully loaded (this is a beast of a sub), the actuall modell, powered by a T.Amp Proline 3000, a real (iron transformator) monster with more than 3kw power in 4ohm bridge mode.
The enclosure is actuall 375l net with an 25cm diam. port tuned to 23hz. This "relative high" tuning is because my room gains more than 10db below 25hz.
I am looking for a better sub enclosure, a tapped horn.
Below, please see my first attemp and the measured TSP (don't know why LE seems to be too low, measured with LIMP and external amp, soundcard is M-Audio 2496 in Win XP Pro)
Parameter, Value, Dim
Fs, 32.09, Hz
Re, 2.30, ohms[dc]
Qt, 0.51, -
Qes, 0.55, -
Qms, 6.37, -
Mms, 541.24, grams
Rms, 18.823193, kg/s
Cms, 0.000045, m/N
Vas, 90.80, liters
Sd, 1194.59, cm^2
Bl, 23.152895, Tm
ETA, 0.62, %
Lp(2.83V/1m), 95.43, dB
Le, 1201.90, uH
L2, 6001.31, uH
R2, 55.97, ohms
L3, 0, uH
R3, 0, ohms
Here is my first result with Hornresp:
Please help me designing a TH for this chassis, the folding of the TH is also a problem for me because of the bends and the displacement of the driver, don't know how to implement this in Google Sketchup.
Greetings from germany
Last edited by zak1976; 06-11-2015 at 01:23 PM.