Easy. Clear polycarbonate or acrylic front.Originally Posted by MatthiasA
Neon lights inside. Different colors for different music genres, or SPL.
Subwoofing color organ....
Easy. Clear polycarbonate or acrylic front.
Neon lights inside. Different colors for different music genres, or SPL.
Subwoofing color organ....
no no no !!!!!!!
I sent you the file check your email. That's a single driver in a standard bass reflex.
Rob
which email adress
i didnt recieved a mail from you rob
please send it to
info @ asselborn-matthias.de
thanks a lot !!!!
by the way these are the two 2213H
http://cgi.ebay.de/ws/eBayISAPI.dll?...MEWN%3AIT&rd=1
Oh Boy
Matthias you realize these drivers do not have JBL cone kits installed??? You are going to have to measure them to see what the T/S are with the kits installed. I hope I am wrong but reading the auction and looking at the cones they are not the same.
Rob
Yes - of course i asked the seller about any changes in T/S
he answerd that these speakers have the same TSP
what do you think about that?
Rob can you tell me the messure of the tube in the 4cu feet cabinet
i cant open the bb6 file!
i will try it with 4cu feet and 47 liters
now i have to wait for the drivers!
greetings matthias
Alas, another generation oblivious to the joys of elemental psychedelia.no no no !!!!!!!
Where'd we go WRONG, folks? Was the "Summer of Love" all for nought?
Tim Leary LIVES!
One thing - JBL's published VAS on their Thiele-Small chart that I quoted at the start is 235L not the 161L you all show. Is that material in this design and why are the numbers different?
I have caught a fair number of errors in JBL's chart so far - is this another?
- Roy
Hello Matthias
That's really strange about the file. It open right up for me???? I am opening the one attached to the email I sent you??? Weird
DV is 3.872 Lv is 9.503
I tried running it in the smaller box and it had a good size peak in the response.
Attached is a screen shot
Rob
Hello!
is this messure in inch or millimeters?
DV is 3.872 Lv is 9.503
yes its very strange ... when i open your file i get this - heres a screenshot!
We are on the English system so my measurements are set in Cubic Ft and Inches and Feet.
Rob
Be sure to account for the magnet structures when making the boxes, it could affect the final design.
However I would consider a three chamber bandpass with both drivers using either one common sealed chamber ( that is 2X sized for one speaker) or a common vented chamber (that is also 2X sized) and foregoing the isobaric design. Isobarics are very ineffecient due to the reduced cone area and dual motors. You basically have a 12 inch driver with an oversized motor on it.The stress on the cones can be quite different and not all drivers respond well to being front pushed by another driver.
The constuction technique is more complicated and access to the drivers can be tough. face to face leaves one driver in the breeze and it might get damaged. Front to back is not recommended becaue of the rear vent, damage would occur.
On a postive note distortion is usually halved and power handling is doubled, but the reduced efficiency makes it a moot point.
Having built systems both ways with the same drivers ( not 2213s, other speakers) I prefered triple chamber sealed designs with common sealed chamber and dual vented chambers. I slightly staggered the tuning between the two vented chambers to increase the range a bit and it worked very well. The dual ports radiated lots of power and being some distance apart made the distribution very good.
just my .02 don't hate me.
my 2213H didnt arrive yet
but could i build a bass scoop with these drivers ?
how can i calculate it ?
greetings matthias
Hello
now the two 2213H are arrived
ok there are one Problem!
The diaphragm and membrane is orginal the sicks too
But there is an amusing lacquer on the sicks
that make a terrible crack noise ???
i take some water and did it on the lacquer
but the noise disappeard not fully
heres a Pic of the Prototyp
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