Yes
~ 3 cu ft tuned to ~ 30 Hz
LE120HS
Yes
~ 3 cu ft tuned to ~ 30 Hz
LE120HS
This looks damned wallshakingOriginally Posted by Giskard
Thanks for the excellent support with this!
OK, I put them into 3.2 quft with bass bump at 30Hz as my sub module can't lower.
I get a strange problem with cone displacement between 30 and 50 Hz.
What to do ?
Tuned to 30 Hz with bump filter centered at 30 Hz try something like a 4 dB bump instead of a 6 dB bump.
Have you built anything yet and listened to it or are you still planning?
I'm still waiting for the 2202 baskets, so currently I'm just planning.
OK, I can't get this into BB6
My Sub Module has a subsonic filter with 24dB/oct at 20Hz means -3dB at 20 Hz, right?
Further I have a parametric EQ variable between 30 and 50Hz, Q~1,2 and bass boost 0 to +6dB
Lowpass Filter is 50 to 150Hz, 18dB/oct
Any help appreciated.
The "easiest" thing is to plug the whole schematic into pspice.
Where's the schematic and I'll try to do it for you.
Thanks for that offer Giskard. Prob is that I do not have the filter schematic
This is driving me mad.
Send them an email and see if you can get a service manual from them.
Ok, let's see what happens here.
Dual 2203H
Vb = 3.2 cu ft
Fb = 30 Hz
80 Hz 18 dB/octave low pass
30 Hz 12 dB/octave bump filter with variable Q
Red = Q of 0.96 (+1 dB)
Grn = Q of 1.13 (+2 dB)
Blu = Q of 1.30 (+3 dB)
Mag = Q of 1.49 (+4 dB)
I suppose I wouldn't go higher than Q of 1.5 I guess.
Q of 1.49 just starts to push past xMax.
Q of 1.49 reduces max electrical input from 200W to ~ 185W
You're above 116 dB with 185W in.
Build it, see if it works, see if it blows up. If it does, don't send us the bill.
I knew it... with 2203s you can't resist
Looks very very good. This will get SOMETHING with the biased 4313 clones
Yeah, it's a potent little sub considering it's size. Similar in size, VLF response and total air movement to a single Citation 7.4 but with ~ 4 dB more efficiency and ~ 50W greater power handling ability.
I might be inclined to make the baffle kind of a V shape to fire each 2203H into the room at a slight angle. I don't know, something like 5 or 10 degrees maybe.
Here they are
They look pretty dangerous
Today I start cabinet building.
Originally Posted by Guido
Those look like pretty good recone jobs dude! Better than factory!
Today I sprayed the primer
I'll have to do it more precise this time as I want to spray the sub in glossy black. Well not piano finish but I'll try my best
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